Development of Gamma-ray Initiated Living Free Radical Polymerization
For many decades, γ-ray radiation has long been used in polymer chemistry as a means of initiating polymerization, cross-linking gels, and decomposing particular polymer components. However, the polymerization process is uncontrollable, which is quite similar to that of conventional free radical polymerization and the resulting polymer has uncontrolled molecular weight and broad molecular weight distribution. In 2001, we first reported that living free radical polymerizations of vinyl monomers, such as methyl acrylate and styrene, were achieved under 60Co γ-ray irradiation in the presence of organic thiocompounds, such as dibenzyl trithiocarbonate. Since then the γ-ray initiated living radical polymerization has drawn increasing attention from polymer chemists because it possesses several advantages, such as performing at room temperature, without using initiators, no metal contamination, and high polymerization rate in comparison with other methods. In this contribution, we present the development of the γ-ray initiated living polymerization in the past several years.
Haiting Zheng Yang Yu Lang Chen Ruke Bai
CAS Key Laboratory of Soft Matter Chemistry,Department of Polymer Science and Engineering,University of Science and Technology of China,Hefei,P.R.China,230026
国际会议
5th International Symposium on High-Tech Polymer Materials(HTPM-V)(第五届国际高技术高分子材料学术会议)
北京
英文
102-103
2008-10-27（万方平台首次上网日期，不代表论文的发表时间）