橡胶技术网

合成橡胶工业
CHINA SYNTHETIC RUBBER INDUSTRY
2002 Vol.25 No.1 P.47

 橡胶技术网

Preparation of star-shaped SIBR with different number of arms

Dai Bin（The Key Laboratory of Science and Technology of Controllable Chemical Reactions,Ministry of Education, Beijing University of Chemical Technology,Beijing 100029,China）　
Zhang Taoyi（The Key Laboratory of Science and Technology of Controllable Chemical Reactions,Ministry of Education, Beijing University of Chemical Technology,Beijing 100029,China）　
Zhang Xingying（The Key Laboratory of Science and Technology of Controllable Chemical Reactions,Ministry of Education, Beijing University of Chemical Technology,Beijing 100029,China）　

含不同臂数星形 SIBR的合成

戴斌　 张韬毅　 张兴英　

摘　要：以多官能团锂为引发剂,步法合成了含不同臂数的星形 SIBR, 研究了他们的序列结构、相对分子质量及其分布,以及物理机械性能.结果表明,调节引发剂的官能度可控制聚合物的臂数,进而得到性能优良的 SIBR.
关键词：负离子聚合;偶联反应;苯乙烯-异戊二烯-丁二烯无规共聚物
CLC Number：TQ32　Document ID：B

　　Star-shaped styrene-isoprene-butadiene rubber(SIBR) with different number of arms possesses an excellent combination of low rolling resistance and anti-wet-gripping, which has found application in making high-performance tires. In order to obtain the desired relative molecular mass(Mw) and relative molecular mass distribution(MWD),SIBR was prepared using a multifunctional lithium initiator via a single-step anionic polymerization procedure.
　　Experiment In the copolymerization of styrene(St), isoprene(Ip) and butadiene(Bd), multifunctional lithium was used as initiator[1], cyclohexane as solvent,THF as polar regulator. The reaction was carried out at 60 ℃ for 3.5 h.
　　……
Foundation Item：Supported by National Nature Science Foundation of China(29874005)
Author Resume：Dai Bin,bachelor of engineering. Zhang Xingying, To whom all correspondence should be addressed.
　　　　　戴斌（北京化工大学可控化学反应科学与技术基础教育部重点实验室,北京,100029）　
　　　　　张韬毅（北京化工大学可控化学反应科学与技术基础教育部重点实验室,北京,100029）　
　　　　　张兴英（北京化工大学可控化学反应科学与技术基础教育部重点实验室,北京,100029）　

References：

［1］Zhang Xingying,Jin Guantai, Zhao Suhe.China Patent,ZL 95 116 575.5.2000
［2］Ying Shengkang,Yu Fengnian.Theory of Copolymerization. Beijing:Publishing Company of Chemical Industry.1984
［3］Zhang Hua.Research of preparation of safe green SIBR by single stage method via using star-shaped initiator[D].Beijing University of Chemical Technology,1997

Manuscript Received：2001年9月10日

Published：2002年1月15日

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