Synthesis of poly4-vinylpyridine-b-polybutadiene-b-poly4-vinylpyridine by anionic polymerization

• Main Authors: Li, Hsien-Jung, 李憲榮
• Other Authors: Raymond Chien-Chao Tsiang
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/01664099130788480663

碩士 === 國立中正大學 === 化學工程研究所 === 86 === Our work in this paper is to prepare difunctional initiator derived from 1,3-diisopropenylbenzene , and linear triblock copolymer VBV have been synthesized by difunctional initiator . It may be noted , however,that anioic copolymerization of 4-vinylpyridine poses some problems related to the occurrence of a grating reaction , but it may be controlled in our experiment . To discuss the properties of Tg and stress relaxation behavior ,VBV and SBS have been examined by TEM and DMA. The procedure X method was utilized for separation and identification of the three processes causing stress relaxation.