A decrease in effective acrylate propagation rate constants caused by intramolecular chain transfer

被引：173

作者：

Plessis, C

Arzamendi, G

Leiza, JR

Schoonbrood, HAS

Charmot, D

Asua, JM

机构：

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

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

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

[4] Rhodia, Ctr Rech Aubervilliers, F-93308 Aubervilliers, France

来源：

MACROMOLECULES | 2000年 / 33卷 / 01期

关键词：

D O I：

10.1021/ma991205z

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The evolution of the instantaneous conversion, sol molecular weight distribution (MWD), gel content, and extent of branching during the emulsion polymerization of n-butyl acrylate (BA) are shown to be inconsistent with a zero-one system, but with an average number of radicals per particle having an effective propagation rate constant lower that those calculated for pulsed laser polymerization per second (PLP/SEC). The seeded semicontinuous BA polymerization was conducted at 75C. Using a mathematical model, values obtained by PLP/SEC are just effective values for the particular monomer concentration used in the PLP/SEC experiments.

引用

页码：4 / 7

页数：4

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