影像科学与光化学 ›› 1990, Vol. 8 ›› Issue (4): 307-310.DOI: 10.7517/j.issn.1674-0475.1990.04.307

• 研究简报 • 上一篇    下一篇

PP-SBS共混物光氧化降解的研究

胡兴洲, 齐菊英   

  1. 中国科学院化学研究所 北京 100080
  • 收稿日期:1988-06-18 修回日期:1990-05-26 出版日期:1990-11-20 发布日期:1990-11-20
  • 通讯作者: 胡兴洲
  • 基金资助:
    国家自然科学基金

PHOTOOXIDATIVE DEGRADATION OF PP-SBS BLEND

Hu Xing-zhou, Qi Ju-ying   

  1. Institute of Chemistry, Academic Sinica, Beijing 100080
  • Received:1988-06-18 Revised:1990-05-26 Online:1990-11-20 Published:1990-11-20

摘要: 和橡胶类树脂进行共混是聚丙烯(PP)改性的重要途径之一,共混有橡胶组分的PP改性树脂在其力学性能获得改进的同时,其老化性能必然也有一定的变化,我们用红外光谱方法研究了聚丙烯和苯乙烯-丁二烯星型嵌段共聚物的共混物(PP-SBS)的光氧化降解行为。

关键词: 聚丙烯, 苯乙烯, 丁二烯, 共聚物, 共混物, 光氧化

Abstract: The photooxidative degradation of blend of polypropylene and polystyrene-polybutadiene star block copolymer (PP-SBS) was studied by infrared spectroscopy.The experimental results showed that the rate of photooxidative degradation of PP-SBS is much higher than that of PP.It was also shown that the photooxidative degradation of PP-SBS starts from polybuta-diene component of SBS.

Key words: polypropylene, styrene, butadiene, copolymer, polymer blend, photooxidation