Aqueous RAFT polymerization of acrylamide: A convenient method for polyacrylamide with narrow molecular weight distribution
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- 作者：Jun Liang ; Guo-rong Shan 单国荣 ; Peng-ju Pan
- 关键词：Homogeneous aqueous RAFT polymerization ; Polyacrylamide ; Controlled molecular weight ; Narrow molecular weight distribution
- 刊名：Chinese Journal of Polymer Science
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：35
- 期：1
- 页码：123-129
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Polymer Sciences; Industrial Chemistry/Chemical Engineering; Characterization and Evaluation of Materials; Condensed Matter Physics;
- 出版者：Chinese Chemical Society and Institute of Chemistry, CAS
- ISSN：1439-6203
- 卷排序：35
文摘
Controlled and homogeneous free-radical polymerization of acrylamide (AM) in aqueous phase was realized by using S,S′-bis(α,α′-dimethyl-α″-acetic acid)-trithiocarbonate as a reversible addition-fragmentation transfer (RAFT) agent. Linear increases in molecular weight with conversion and narrow molecular weight distribution were observed for polyacrylamide (PAM) throughout the polymerization. By this method, PAMs with controlled molecular weight (up to 1.0 × 106) and narrow molecular weight distribution (Mw/Mn < 1.2) were prepared. This study provides an effective method for synthesis of PAMs with narrow molecular weight distribution under environmentally friendly conditions.