高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (12): 1925.

• 论文 • 上一篇    下一篇

刚性聚合物微球透明增韧聚苯乙烯

汤钧, 刘凤歧, 金美花, 杨柏   

  1. 吉林大学化学系, 长春 130023
  • 收稿日期:1999-07-23 出版日期:2000-12-24 发布日期:2000-12-24
  • 通讯作者: 杨 柏(1962年出生),男,博士,教授,博士生导师,主要从事聚合物光学材料科学研究.
  • 基金资助:

    国家重点基础研究专项经费基金(批准号:G1999064803)资助

Rigid Polymer Particle Toughened Polystyrene with no Effect on Its Transparency

TANG Jun, LIU Feng-Qi, JIN Mei-Hua, YANG Bai    

  1. Department of Chemistry, Jilin University, Changchun 130023, China
  • Received:1999-07-23 Online:2000-12-24 Published:2000-12-24

摘要: 通过多步复合乳液聚合方法合成了一种具有核壳结构的刚性聚合物微球.不同粒径、用量及核层交联密度的核壳微粒(C-S)与聚苯乙烯(PS)共混得到PS/C-S复合材料.通过对其冲击强度及透明性的研究表明增韧PS的最佳条件是核壳微粒的粒径大于100nm,复合材料中的微粒含量在2%~5%,核层具有适当的交联度.在未影响材料透明性的前提下,材料的韧性比纯PS提高2倍

关键词: 聚苯乙烯, 增韧, 乳液聚合

Abstract: Akind of rigid polymer microsphere with core shell structure was synthesized by multi step composite emulsion polymerization technique.The polystyrene(PS) composite with different particle sizes, concentration and core layer crosslinking agent of core shell particles were prepared.The impact strength and the transparency were studied which indicated that the best condition for toughening PSwas that the particle size was above 100nm, the particle content in PScomposite was in the range of2%-5% and the appropriate crosslinking density in core layer.The material toughness was improved two times higher than that of pure PSwhile the PStransparency was not affected

Key words: Polystyrene, Toughten, Emulsion polymerization

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