Atom transfer radical polymerization of methyl methacrylate with low concentration of initiating system under microwave irradiation

被引：60

作者：

Cheng, ZP ^{[1
]}

Zhu, XL ^{[1
]}

Chen, M ^{[1
]}

Chen, JY ^{[1
]}

Zhang, LF ^{[1
]}

机构：

[1] Suzhou Univ, Sch Chem & Chem Engn, Suzhou 215006, Peoples R China

来源：

POLYMER | 2003年 / 44卷 / 08期

关键词：

atom transfer radical polymerization (ATRP); microwave; irradiation;

D O I：

10.1016/S0032-3861(03)00111-3

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Homogeneous atom transfer radical polymerization of methyl methacrylate (MMA) under microwave irradiation (MI) with low concentration of initiating system [ethyl 2-bromobutyrate (EBB)/CuCl/N,N,N',N'',N"-pentamethyldiethylenetriamine (PMDETA)] was successfully carried out in N,N-dimethylformamide (DMF) at 69 degreesC. Plots of In ([M](0)/[M]) vs. time and molecular weight evolution vs. conversion showed a linear dependence. A 27.3% conversion for a polymer with number-average molecular weight (M.) of 57,280 and a polydispersity index (PDI) of 1.19, was obtained under MI (360 W) with the ratio of [MMA](0)/[EBB](0)/[CuCl](0)/[PMDETA](0) = 2400/1/2/2 in only 150 min; but 963 min was needed under conventional heating (CH) process to reach a 26.0% conversion (M. = 63,990 and PDI = 1.14) under identical polymerization conditions, indicating a significant enhancement of the polymerization rate under MI. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：2243 / 2247

页数：5

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