物理化学学报 >> 1995, Vol. 11 >> Issue (09): 807-811.doi: 10.3866/PKU.WHXB19950909

研究论文 上一篇    下一篇

PVC/PBD-b-PMMA共混体系相容性的研究

张邦华, 李春刚, 宋谋道, 周庆业, 郝广杰, 张莹   

  1. 南开大学高分子化学研究所,天津 300071
  • 收稿日期:1994-11-07 修回日期:1995-02-24 发布日期:1995-09-15
  • 通讯作者: 张邦华

Study on the Miscibility of PVC/PBD-b-PMMA Blends

Zhang Bang-Hua, Li Chuan-Gang, Song Mou-Dao, Zhou Qing-Ye, Hao Guang-Jie, Zhang Ying   

  1. Institute of Polymer Chemsitry,Nankai University,Tianjin 300071
  • Received:1994-11-07 Revised:1995-02-24 Published:1995-09-15
  • Contact: Zhang Bang-Hua

摘要:

采用DMA和TEM系统研究了聚丁二烯-聚甲基丙烯酸甲酯的嵌段共聚物(PBD-b-PMMA)与聚氯乙烯(PVC)共混体系的相容性问题.结果表明,PVC/PBD-b-PMMA共混体系具有部分相容性,相容的程度与共混体系的组成、组分聚合物的分子量以及共聚物中PBD和PMMA嵌段的比例密切相关.

关键词: 聚氯乙烯(PVC), 聚丁二烯-聚甲基丙烯酸甲酯嵌段共聚物(PBD-b-PMMA), 共混物, 相容性, 形态

Abstract:

 The miscibility of PVC/PBD-b-PMMA blends has been studied. The results of DMA and TEM reveal that PBD-b-PMMA and PVC are partially miscible. The miscibility depends on the composition of the blends, the molecular weight of the component polymers, and the proportion of PBD and PMMA in the block copolymers. The miscibility of PVC-5 with the copolymers is better than that of PVC-3 and PVC-7. When the proportion of PBD and PMMA are almost equal, the miscibility increases with the molecular weight of PBD-b-PMMA.

Key words: PVC, PBD-b-PMMA, Blends, Miscibility, Morphology