High-pressure atom transfer radical polymerization of methyl methacrylate for well-defined ultrahigh molecular-weight polymers

被引：70
|
作者：
Arita, Toshihiko [1 ]
Kayama, Yuzo [1 ]
Ohno, Kohji [1 ]
Tsujii, Yoshinobu [1 ]
Fukuda, Takeshi [1 ]
机构：
[1] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan
来源：
POLYMER | 2008年 / 49卷 / 10期
关键词：
high pressue; living radical polymerization; atom transfer radical polymerization;
D O I：
10.1016/j.polymer.2008.03.026
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 feasibility of high-pressure atom transfer radical polymerization (ATRP) for synthesizing well-defined polymers of extraordinarily high molecular weights was demonstrated. ATRP of methyl methacrylate (MMA) under pressures up to 500 MPa was investigated at 60 degrees C. The addition of a small amount of a Cu(II)Cl-2/ligand complex along with the general benefits of high pressure of enhancing propagation and suppressing termination brought about an excellent control of polymerization even with an extremely low concentration of ATRP initiator. For example, there was produced PMMA with a number-average molecular weight M-n of 3.6 x 10(6) and a polydispersity index of 1.24, which had never been achieved by conventional ATRP. (c) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2426 / 2429
页数：4
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