Radical polymerization of styrene in the presence of C60

Yun Chen, Kou Cheng Lin

研究成果: Article同行評審

29 引文 斯高帕斯(Scopus)

摘要

Radical polymerizations of styrene in the presence of C60 have been conducted at 90 °C in benzene using benzoyl peroxide (BPO) as initiator. The behaviors of C60 are investigated by monitoring BPO concentration, C60 content, and polymerization time. It is found that C60 acts like a radical absorber which multiply absorbs primary radicals from BPO and propagating radicals. Therefore, in the presence of C the yield and molecular weight decrease significantly. However, the molecular weight distribution is narrowed down by its coupling characteristics. At the beginning of the reaction, owing to the radical-absorbing effect of C60, it makes the chain-propagation restricted. However, the number of polystyrene chains added to C60 increases with polymerization time. Direct dilatometric experiment proves that C60 is mainly as inhibitor for radical polymerization of styrene by benzoyl peroxide. Besides, the glass transition temperature (Tg) of the copolymers increases with increasing content of C60.

原文English
頁(從 - 到)2969-2975
頁數7
期刊Journal of Polymer Science, Part A: Polymer Chemistry
37
發行號15
DOIs
出版狀態Published - 1999 八月 1

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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