Determination of free-radical propagation rate coefficients for cycloalkyl and functional methacrylates by pulsed-laser polymerization

被引：95

作者：

Hutchinson, RA ^{[1
]}

Beuermann, S ^{[1
]}

Paquet, DA ^{[1
]}

McMinn, JH ^{[1
]}

Jackson, C ^{[1
]}

机构：

[1] DuPont Co Inc, Cent Res & Dev, Expt Stn, Wilmington, DE 19880 USA

来源：

MACROMOLECULES | 1998年 / 31卷 / 05期

关键词：

D O I：

10.1021/ma971307u

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Free-radical propagation rate coefficients (k(p)) for three cycloalkyl methacrylates and two functional methacrylates were measured at temperatures between 30 and 110 degrees C. The data were obtained by analyzing molecular weight distributions of polymer produced by pulsed-laser polymerization - the PLP/MWD technique. Arrhenius parameters were compared with recent results reported for linear and branched alkyl methacrylates, including methyl methacrylate (MMA) and n-dodecyl methacrylate (DMA). The highest k(p) value, for 2-hydroxypropyl methacrylate, is more than twice the MMA value, and is 50% higher than the DMA value at 50 degrees C. The monomer with the lowest k(p) value, isobornyl methacrylate, has a coefficient of similar magnitude to DMA Values for the other three monomers - glycidyl, cyclohexyl, and benzyl methacrylates - are intermediate between these two levels.

引用

页码：1542 / 1547

页数：6

共 19 条

[1] Determination of free-radical propagation rate coefficients of butyl, 2-ethylhexyl, and dodecyl acrylates by pulsed-laser polymerization [J].

Beuermann, S ;

Paquet, DA ;

McMinn, JH ;

Hutchinson, RA .

MACROMOLECULES, 1996, 29 (12) :4206-4215

[2] Critically evaluated rate coefficients for free-radical polymerization .2. Propagation rate coefficients for methyl methacrylate [J].

Beuermann, S ;

Buback, M ;

Davis, TP ;

Gilbert, RG ;

Hutchinson, RA ;

Olaj, OF ;

Russell, GT ;

Schweer, J ;

vanHerk, AM .

MACROMOLECULAR CHEMISTRY AND PHYSICS, 1997, 198 (05) :1545-1560

[3] CRITICALLY EVALUATED RATE COEFFICIENTS FOR FREE-RADICAL POLYMERIZATION .1. PROPAGATION RATE COEFFICIENT FOR STYRENE [J].

BUBACK, M ;

GILBERT, RG ;

HUTCHINSON, RA ;

KLUMPERMAN, B ;

KUCHTA, FD ;

MANDERS, BG ;

ODRISCOLL, KF ;

RUSSELL, GT ;

SCHWEER, J .

MACROMOLECULAR CHEMISTRY AND PHYSICS, 1995, 196 (10) :3267-3280

[4] Modeling of molecular weight distribution in pulsed laser free-radical homopolymerizations [J].

Buback, M ;

Busch, M ;

Lammel, RA .

MACROMOLECULAR THEORY AND SIMULATIONS, 1996, 5 (05) :845-861

[5] Propagation rate coefficients in free-radical homopolymerizations of butyl methacrylate and dodecyl methacrylate [J].

Buback, M ;

Geers, U ;

Kurz, CH .

MACROMOLECULAR CHEMISTRY AND PHYSICS, 1997, 198 (11) :3451-3464

[6]

Buback M, 1998, MACROMOL THEOR SIMUL, V7, P197

[7]

BUBACK M, UNPUB MACROMOL CHEM

[8]

Hutchinson RA, 1995, DECH MONOG, V131, P467

[9] ANALYSIS OF PULSED-LASER-GENERATED MOLECULAR-WEIGHT DISTRIBUTIONS FOR THE DETERMINATION OF PROPAGATION RATE COEFFICIENTS [J].

HUTCHINSON, RA ;

ARONSON, MT ;

RICHARDS, JR .

MACROMOLECULES, 1993, 26 (24) :6410-6415

[10] Determination of free-radical propagation rate coefficients for alkyl methacrylates by pulsed-laser polymerization [J].

Hutchinson, RA ;

Beuermann, S ;

Paquet, DA ;

McMinn, JH .

MACROMOLECULES, 1997, 30 (12) :3490-3493

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