Evidence of branching in poly(butyl acrylate) produced in pulsed-laser polymerization experiments

被引：127

作者：

Plessis, C

Arzamendi, G

Alberdi, JM

van Herk, AM

Leiza, JR

Asua, JM

机构：

[1] Univ Basque Country, Inst Polymer Mat, Fac Ciencias Quim, San Sebastian 20080, Spain

[2] Univ Basque Country, Grp Ingn Quim, Dept Quim Aplicada, Fac Ciencias Quim, San Sebastian 20080, Spain

[3] Univ Publ Navarra, Dept Quim Aplicada, Iruna Pamplona 31006, Spain

[4] Univ Basque Country, Dept Fis Mat, Fac Ciencias Quim, San Sebastian 20080, Spain

[5] Eindhoven Univ Technol, Dept Polymer Chem, NL-5600 MB Eindhoven, Netherlands

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2003年 / 24卷 / 02期

关键词：

backbiting; branched; microstructure; poly(butyl acrylate); pulsed-laser polymerization;

D O I：

10.1002/marc.200390030

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Branched poly(butyl acrylate) was obtained from pulsed laser polymerizations carried out in bulk and in solution between 16 and 60degreesC. The predominantly short branches are formed by backbiting. The Arrhenius temperature dependence of the backbiting rate is calculated, and the activation energy of this process was found to be remarkably higher than that of propagation. Branching thus increases with temperature leading to broader SEC traces and difficulties in the accurate determination of k(p).

引用

页码：173 / 177

页数：5

共 21 条

[1] Chain transfer to polymer in free-radical solution polymerization of n-butyl acrylate studied by NMR spectroscopy [J].