Buback, Michael M.

[["dc.bibliographiccitation.firstpage","1400"],["dc.bibliographiccitation.issue","13"],["dc.bibliographiccitation.journal","Macromolecular Chemistry and Physics"],["dc.bibliographiccitation.lastpage","1409"],["dc.bibliographiccitation.volume","212"],["dc.contributor.author","Schrooten, Jens"],["dc.contributor.author","Buback, Michael"],["dc.contributor.author","Hesse, Pascal"],["dc.contributor.author","Hutchinson, Robin A."],["dc.contributor.author","Lacik, Igor"],["dc.date.accessioned","2018-11-07T08:54:42Z"],["dc.date.available","2018-11-07T08:54:42Z"],["dc.date.issued","2011"],["dc.description.abstract","Termination kinetics of 1-vinylpyrrolidin-2-one radical polymerization in aqueous solution has been studied at 40 degrees C between 20 and 100 wt.-% VP. The /k(p) values from laser single-pulse experiments with microsecond time-resolved NIR detection of monomer conversion, in conjunction with k(p) from literature, yield chain-length-averaged termination rate coefficients, . Because of better signal-to-noise quality, experiments were carried out at 2 000 bar, but also at 1 500, 1 000, and 500 bar, thus allowing for estimates of at ambient pressure. The dependence of on monomer conversion indicates initial control by segmental diffusion followed by translational diffusion and finally reaction diffusion control. To assist the kinetic studies, viscosities of VP-water mixtures at ambient pressure have been determined."],["dc.description.sponsorship","BASF SE"],["dc.identifier.doi","10.1002/macp.201100021"],["dc.identifier.isi","000292541600008"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22734"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1022-1352"],["dc.title","Termination Kinetics of 1-Vinylpyrrolidin-2-one Radical Polymerization in Aqueous Solution"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1463"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Pure and Applied Chemistry"],["dc.bibliographiccitation.lastpage","1469"],["dc.bibliographiccitation.volume","79"],["dc.contributor.author","Beuermann, Sabine"],["dc.contributor.author","Buback, Michael"],["dc.contributor.author","Hesse, Pascal"],["dc.contributor.author","Kuchta, Frank-Dieter"],["dc.contributor.author","Lacik, Igor"],["dc.contributor.author","van Herk, Alex M."],["dc.date.accessioned","2018-11-07T11:00:27Z"],["dc.date.available","2018-11-07T11:00:27Z"],["dc.date.issued","2007"],["dc.description.abstract","Critically evaluated propagation rate coefficients, k(P), for free-radical polymerization of methacrylic acid, MAA, in aqueous solution are presented. The underlying k(P) values are from two independent sources, which both used the IUPAC-recommended technique of pulsed-laser-initiated polymerization (PLP) in conjunction with molar mass distribution (MMD) analysis of the resulting polymer by size-exclusion chromatography (SEC). Different methods of measuring the MMD of the poly(MAA) samples have, however, been used: (i) direct analysis via aqueous-phase SEC and (ii) standard SEC with tetrahydrofuran as the eluent carried out on poly(methyl methacrylate) samples obtained by methylation of the poly(MAA) samples from PLP. Benchmark k(P) values for aqueous solutions containing 15 mass % MAA are presented for temperatures between 18 and 89 degrees C. The Arrhenius pre-exponential and activation energy of k(P) at 15 mass % MAA are 1.54 x 10(6) L mol(-1) s(-1) and 15.0 kJ mol(-1), respectively. Also reported are critically evaluated k(P) values for 25 degrees C over the entire MAA concentration range from dilute aqueous solution to bulk polymerization."],["dc.identifier.doi","10.1351/pac200779081463"],["dc.identifier.isi","000248391900010"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/50919"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Int Union Pure Applied Chemistry"],["dc.relation.issn","0033-4545"],["dc.title","Critically evaluated rate coefficients for free-radical polymerization. Part 6: Propagation rate coefficient of methacrylic acid in aqueous solution"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","8197"],["dc.bibliographiccitation.issue","21"],["dc.bibliographiccitation.journal","Industrial & Engineering Chemistry Research"],["dc.bibliographiccitation.lastpage","8204"],["dc.bibliographiccitation.volume","47"],["dc.contributor.author","Buback, Michael"],["dc.contributor.author","Hesse, Pascal"],["dc.contributor.author","Hutchinson, Robin A."],["dc.contributor.author","Kasak, Peter"],["dc.contributor.author","Lacik, Igor"],["dc.contributor.author","Stach, Marek"],["dc.contributor.author","Utz, Inga"],["dc.date.accessioned","2018-11-07T11:09:14Z"],["dc.date.available","2018-11-07T11:09:14Z"],["dc.date.issued","2008"],["dc.description.abstract","The batch free-radical polymerization of nonionized methacrylic acid (MAA) in aqueous solution has been investigated at 50 degrees C and initial monomer concentrations Lip to 30 wt % MAA. The rate of conversion increases as the initial weight fraction of MAA decreases, a result explained by the dependence of the propagation rate coefficient, k(p), on monomer concentration. The conversion profiles measured at different MAA and initiator levels are represented by a polymerization model with con version-dependent k(p) taken from literature, and the termination rate coefficient, k(1), represented by a function including terms for segmental diffusion, translational diffusion, and reaction diffusion. The model includes chain transfer to monomer and is capable of representing polymer molecular weight averages and distributions, with the better fit obtained assuming that the transfer rate coefficient also varies with monomer concentration."],["dc.identifier.doi","10.1021/ie800887v"],["dc.identifier.isi","000260534600031"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/52961"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Chemical Soc"],["dc.relation.issn","0888-5885"],["dc.title","Kinetics and Modeling of Free-Radical Batch Polymerization of Nonionized Methacrylic Acid in Aqueous Solution"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2049"],["dc.bibliographiccitation.issue","21"],["dc.bibliographiccitation.journal","Macromolecular Rapid Communications"],["dc.bibliographiccitation.lastpage","2054"],["dc.bibliographiccitation.volume","28"],["dc.contributor.author","Buback, Michael"],["dc.contributor.author","Hesse, Pascal"],["dc.contributor.author","Lacik, Igor"],["dc.date.accessioned","2018-11-07T10:57:14Z"],["dc.date.available","2018-11-07T10:57:14Z"],["dc.date.issued","2007"],["dc.description.abstract","In acrylate polymerizations both SPRs and tertiary MCRs occur. Via pulsed laser polymerization, using a wide range of LPRRs, in conjunction with aqueous-phase size-exclusion chromatography the polymerization of 1.35 mol-L-1 acrylic acid in aqueous solution has been investigated at 6 degrees C. The sigmoidal decrease in the apparent propagation rate coefficient, k(p)(app), towards lower LPRRs is in line with recent predictions. At the highest LPRRs, k(p)(app) approaches the rate coefficient of SPR propagation, k(p)(SPR), whereas the limiting value of k(p)(app) at low LPRRs approaches the effective propagation rate coefficient, k(p)(eff), which allows for an estimate of the fraction of MCRs under polymerization conditions, x(MCR). {graphics}"],["dc.identifier.doi","10.1002/marc.200700396"],["dc.identifier.isi","000250902700001"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/50196"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1022-1336"],["dc.title","Propagation rate coefficient and fraction of mid-chain radicals for acrylic acid polymerization in aqueous solution"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3244"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Macromolecules"],["dc.bibliographiccitation.lastpage","3253"],["dc.bibliographiccitation.volume","49"],["dc.contributor.author","Lacik, Igor"],["dc.contributor.author","Chovancova, Anna"],["dc.contributor.author","Uhelska, Lucia"],["dc.contributor.author","Preusser, Calista"],["dc.contributor.author","Hutchinson, Robin A."],["dc.contributor.author","Buback, Michael"],["dc.date.accessioned","2018-11-07T10:14:21Z"],["dc.date.available","2018-11-07T10:14:21Z"],["dc.date.issued","2016"],["dc.description.abstract","Acrylamide (AAm) is an important water-soluble monomer. Pulsed-laser polymerization in conjunction with size-exclusion chromatography (PLP-SEC) has been employed to measure the propagation rate coefficient, k(p), in aqueous solution at monomer concentrations from 1 to 30 wt % and temperatures between 5 and 70 degrees C. Laser pulse repetition rate has been extensively varied, from 25 up to 500 Hz, to check for consistency of the measured k(p) values, which increase toward larger water content, e.g., by 50% upon lowering AAm concentration from 30 to 5 wt %. Variation of pH, up to pH 11, and addition of up to 1 mol L-1 NaCl to the polymerizing system do not significantly affect k(p). The activation energy, E-A(k(p)), of about 18 kJ mol(-1) stays more or less constant within the monomer concentration range under investigation, which indicates that the changes of k(p) are primarily of entropic origin. The pre-exponential factor, A(k(p)), increases from 5.7 X 10(7) to 7.7 X 10(7) L mol(-1) s(-1) upon lowering the AAm concentration from 30 to 10 wt %. These high A(k(p)) numbers demonstrate the fluidizing action of water,on the transition state toward internal rotation with AAm being lower than with acrylates."],["dc.identifier.doi","10.1021/acs.macromol.6b00526"],["dc.identifier.isi","000375809700005"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/40604"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Chemical Soc"],["dc.relation.issn","1520-5835"],["dc.relation.issn","0024-9297"],["dc.title","PLP-SEC Studies into the Propagation Rate Coefficient of Acrylamide Radical Polymerization in Aqueous Solution"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","204"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Polymer Chemistry"],["dc.bibliographiccitation.lastpage","212"],["dc.bibliographiccitation.volume","5"],["dc.contributor.author","Barner-Kowollik, Christopher"],["dc.contributor.author","Beuermann, Sabine"],["dc.contributor.author","Buback, Michael"],["dc.contributor.author","Castignolles, Patrice"],["dc.contributor.author","Charleux, Bernadette"],["dc.contributor.author","Coote, Michelle L."],["dc.contributor.author","Hutchinson, Robin A."],["dc.contributor.author","Junkers, Thomas"],["dc.contributor.author","Lacik, Igor"],["dc.contributor.author","Russell, Gregory T."],["dc.contributor.author","Stach, Marek"],["dc.contributor.author","van Herk, Alex M."],["dc.date.accessioned","2018-11-07T09:47:19Z"],["dc.date.available","2018-11-07T09:47:19Z"],["dc.date.issued","2014"],["dc.description.abstract","Propagation rate coefficient (k(p)) data for radical polymerization of methyl acrylate (MA) in the bulk are critically evaluated and a benchmark dataset is put forward by a task-group of the IUPAC Subcommittee on Modeling of Polymerization Kinetics and Processes. This dataset comprises previously published results from three laboratories as well as new data from a fourth laboratory. Not only do all these values of k(p) fulfill the recommended consistency checks for reliability, they are also all in excellent agreement with each other. Data have been obtained employing the technique of pulsed-laser polymerization (PLP) coupled with molar-mass determination by size-exclusion chromatography (SEC), where PLP has been carried out at pulse-repetition rates of up to 500 Hz, enabling reliable k(p) to be obtained through to 60 degrees C. The best-fit - and therefore recommended - Arrhenius parameters are activation energy E-A - 17.3 kJ mol(-1) and pre-exponential (frequency) factor A - 1.41 x 10(7) L mol(-1) s(-1). These hold for secondary-radical propagation of MA, and may be used to calculate effective propagation rate coefficients for MA in situations where there is a significant population of mid-chain radicals resulting from backbiting, as will be the case at technically relevant temperatures. The benchmark dataset reveals that k(p) values for MA obtained using PLP in conjunction with MALDI-ToF mass spectrometry are accurate. They also confirm, through comparison with previously obtained benchmark k(p) values for n-butyl acrylate, methyl methacrylate and n-butyl methacrylate, that there seems to be identical family-type behavior in n-alkyl acrylates as in n-alkyl methacrylates. Specifically, k(p) for the n-butyl member of each family is about 20% higher than for the corresponding methyl member, an effect that appears to be entropic in origin. Furthermore, each family is characterized by an approximately constant E-A, where the value is 5 kJ mol(-1) lower for acrylates."],["dc.description.sponsorship","IUPAC [2011-034-2-400]"],["dc.identifier.doi","10.1039/c3py00774j"],["dc.identifier.isi","000327669900025"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/35083"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Royal Soc Chemistry"],["dc.relation.issn","1759-9962"],["dc.relation.issn","1759-9954"],["dc.title","Critically evaluated rate coefficients in radical polymerization-7. Secondary-radical propagation rate coefficients for methyl acrylate in the bulk"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","95"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Macromolecular Reaction Engineering"],["dc.bibliographiccitation.lastpage","107"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Wittenberg, Nils F. G."],["dc.contributor.author","Preusser, Calista"],["dc.contributor.author","Kattner, Hendrik"],["dc.contributor.author","Stach, Marek"],["dc.contributor.author","Lacik, Igor"],["dc.contributor.author","Hutchinson, Robin A."],["dc.contributor.author","Buback, Michael"],["dc.date.accessioned","2018-11-07T10:16:03Z"],["dc.date.available","2018-11-07T10:16:03Z"],["dc.date.issued","2016"],["dc.description.abstract","Batch radical polymerization of 5-40wt% non-ionized acrylic acid (AA) in aqueous solution has been studied between 35 and 90 degrees C under variation of initiator concentration and type as well as upon addition of different levels of 2-mercaptoethanol as chain-transfer agent (CTA). Chain-length-dependent termination was taken into account in a model developed to describe the system, as high amounts of CTA have an impact on polymerization kinetics due to reduced chain length. The model also considers the 1,5-hydrogen shift (backbiting) reaction that transforms the secondary propagating radical into a tertiary midchain radical, with the backbiting reaction quantified via C-13 NMR. The model developed is the most comprehensive treatment to date of this complex polymerization system and is able to represent monomer conversion profiles and polymer molar mass distributions over a wide range of conditions."],["dc.identifier.doi","10.1002/mren.201500017"],["dc.identifier.isi","000374562200001"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/40956"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1862-8338"],["dc.relation.issn","1862-832X"],["dc.title","Modeling Acrylic Acid Radical Polymerization in Aqueous Solution"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2327"],["dc.bibliographiccitation.issue","23"],["dc.bibliographiccitation.journal","Macromolecular Chemistry and Physics"],["dc.bibliographiccitation.lastpage","2336"],["dc.bibliographiccitation.volume","215"],["dc.contributor.author","Uhelska, Lucia"],["dc.contributor.author","Chorvat, Dusan"],["dc.contributor.author","Hutchinson, Robin A."],["dc.contributor.author","Santanakrishnan, Sandhya"],["dc.contributor.author","Buback, Michael"],["dc.contributor.author","Lacik, Igor"],["dc.date.accessioned","2018-11-07T09:32:04Z"],["dc.date.available","2018-11-07T09:32:04Z"],["dc.date.issued","2014"],["dc.description.abstract","Pulsed-laser polymerization with subsequent analysis of the polymer molar mass distribution by size-exclusion chromatography, PLP-SEC, is used to measure the propagation rate coefficient, k(p), of N-vinylpyrrolidone (NVP) in a series of organic solvents, varying the NVP concentration from 5 to 100 wt% and varying the temperature between-5 and +80 degrees C. In contrast to the 20-fold increase observed in aqueous solution upon decreasing the NVP concentration from bulk to dilute conditions, the k(p) values of NVP in butyl acetate, iso-propyl acetate, N-ethylpyrrolidone, and N-ethylformamide stay within 20% of the bulk value and exhibit no significant dependence on monomer concentration. The k(p) behavior of NVP in methanol and n-butanol is intermediate between the one in water and in the other organic solvents, with k(p) increasing by about a factor of 2 upon lowering the monomer concentration from bulk to 5 wt% NVP. The activation energies for propagation in organic solvents agree within experimental uncertainty with the value reported for bulk NVP. The data demonstrate that hydrogen bonding is responsible for the increase in k(p) upon dilution, with this effect being much stronger in an aqueous environment than in a solution of alcohol."],["dc.identifier.doi","10.1002/macp.201400329"],["dc.identifier.isi","000345966900006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/31665"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1521-3935"],["dc.relation.issn","1022-1352"],["dc.title","Radical Propagation Kinetics of N-Vinylpyrrolidone in Organic Solvents Studied by Pulsed-Laser Polymerization-Size-Exclusion Chromatography (PLP-SEC)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","23"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Macromolecular Chemistry and Physics"],["dc.bibliographiccitation.lastpage","37"],["dc.bibliographiccitation.volume","216"],["dc.contributor.author","Lacik, Igor"],["dc.contributor.author","Stach, Marek"],["dc.contributor.author","Kasak, Peter"],["dc.contributor.author","Semak, Vladislav"],["dc.contributor.author","Uhelska, Lucia"],["dc.contributor.author","Chovancova, Anna"],["dc.contributor.author","Reinhold, Guenter"],["dc.contributor.author","Kilz, Peter"],["dc.contributor.author","Delaittre, Guillaume"],["dc.contributor.author","Charleux, Bernadette"],["dc.contributor.author","Chaduc, Isabelle"],["dc.contributor.author","D'Agosto, Franck"],["dc.contributor.author","Lansalot, Muriel"],["dc.contributor.author","Gaborieau, Marianne"],["dc.contributor.author","Castignolles, Patrice"],["dc.contributor.author","Gilbert, Robert G."],["dc.contributor.author","Szablan, Zachary"],["dc.contributor.author","Barner-Kowollik, Christopher"],["dc.contributor.author","Hesse, Pascal"],["dc.contributor.author","Buback, Michael"],["dc.date.accessioned","2018-11-07T10:04:04Z"],["dc.date.available","2018-11-07T10:04:04Z"],["dc.date.issued","2015"],["dc.description.abstract","The accurate characterization of molar-mass distributions of poly(acrylic acid) (PAA) and poly(methacrylic acid) (PMAA) by size-exclusion chromatography (SEC) is addressed. Two methods are employed: direct aqueous-phase SEC on P(M)AA and THF-based SEC after esterification of P(M) AA to the associated methyl esters, P(M) MA. P(M) AA calibration standards, P(M) AA samples prepared by pulsed-laser polymerization (PLP), and PAA samples prepared by reversible addition-fragmentation chain transfer (RAFT) are characterized in a joint initiative of seven laboratories, with satisfactory agreement achieved between the institutions. Both SEC methods provide reliable results for PMAA. In the case of PAA, close agreement between the two SEC methods is only observed for samples prepared by RAFT polymerization with weight-average molar mass between 80 000 and 145 000 g mol(-1) and for standards with peak molar masses below 20 000 g mol(-1). For standards with higher molar masses and for PLP-prepared PAA, the values from THF-based SEC are as much as 40% below the molar masses determined by aqueous-phase SEC. This discrepancy may be due to branching or degradation of branched PAA during methylation. While both SEC methods can be recommended for PMAA, aqueous-phase SEC should be used for molar-mass analysis of PAA unless the sample is not branched."],["dc.identifier.doi","10.1002/macp.201400339"],["dc.identifier.isi","000347241500003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/38613"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1521-3935"],["dc.relation.issn","1022-1352"],["dc.title","SEC Analysis of Poly(Acrylic Acid) and Poly(Methacrylic Acid)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3513"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Macromolecules"],["dc.bibliographiccitation.lastpage","3520"],["dc.bibliographiccitation.volume","41"],["dc.contributor.author","Beuermann, Sabine"],["dc.contributor.author","Buback, Michael"],["dc.contributor.author","Hesse, Pascal"],["dc.contributor.author","Hutchinson, Robin A."],["dc.contributor.author","Kukucova, Silvia"],["dc.contributor.author","Lacik, Igor"],["dc.date.accessioned","2018-11-07T11:15:00Z"],["dc.date.available","2018-11-07T11:15:00Z"],["dc.date.issued","2008"],["dc.description.abstract","The termination kinetics of free-radical polymerization of nonionized methacrylic acid (MAA) in aqueous solution has been investigated at two MAA concentrations, 30 and 60 wt %, by single-pulse pulsed-laser initiated polymerization carried out in conjunction with mu s time-resolved in-line monitoring of monomer conversion via near-infrared spectroscopy (SP-PLP-NIR). From measured values of k(t)/k(p) for 2000 bar, with the conversion-dependent propagation rate coefficient, k(p), being inferred from literature data, the chain-length-averaged termination rate coefficient, < k(t)>, is deduced as a function of monomer conversion, x. As with methyl methacrylate polymerization, the < k(t)> vs x dependence may be modeled under the assumption that, toward higher degrees of monomer conversion, < k(t)> is successively controlled by segmental diffusion, translational diffusion, and reaction diffusion. For 50 degrees C, 2000 bar, and initial monomer concentrations in water of 30 and 60 wt %, chemically initiated polymerizations have also been carried out. The resulting < k(t)> values are in good agreement with the data from SP-PLP-NIR."],["dc.identifier.doi","10.1021/ma7028902"],["dc.identifier.isi","000256058000020"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/54273"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Chemical Soc"],["dc.relation.issn","0024-9297"],["dc.title","Termination kinetics of the free-radical polymerization of nonionized methacrylic acid in aqueous solution"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]