中华医学超声杂志

应用化学 ›› 1988, Vol. 0 ›› Issue (5): 53-57.

• 研究论文 • 上一篇    下一篇

聚醋酸乙烯酯/聚丙烯酸甲酯互穿网络聚合物的研究 Ⅴ.互穿缠结对相区结构的稳定作用

毕喜平, 李滨耀, 张东华   

  1. 中国科学院长春应用化学研究所
  • 收稿日期:1987-08-10 修回日期:1988-02-03 出版日期:1988-10-10 发布日期:1988-10-10
  • 基金资助:
    国家自然科学基金资助课题

STUDY OF POLY(VINYL ACETATE)/POLY(METHACRYLATE)INTERPENETRATING POLYMER NETWORKS Ⅴ.PHASE STABILIZATION FROM MUTUAL ENTANGLEMENTS BETWEEN NETWORKS

Bi Xiping, Li Binyao, Zhang Donghua   

  1. Changchun Institute of Applied Chemistry, Academia Sinica
  • Received:1987-08-10 Revised:1988-02-03 Published:1988-10-10 Online:1988-10-10

PDF

399

被引次数

6

摘要： 用定量的甲苯溶胀聚醋酸乙烯酯/聚丙烯酸甲酯互穿网络聚合物(PVAc/PMA IPN),使体系处于分相的热力学条件;或醇解其中的PVAc 网络,即增加两组份的化学不相容性.动态力学谱和透射电镜等结果表明,IPN 和网络Ⅰ的交联密度较高的半 IPN 试样,没有发生进一步的相分离,证明网络互穿缠结是永久性的物理缠结,并且有强迫互容作用的存在.

关键词: 聚醋酸乙烯酯/聚丙烯酸甲酯互穿网络聚合物, 永久缠结, 相容性

Abstract: Poly(vinyl acetate)/poly(methacrylate)interpenetrating polymer networks(PVAc/PMA IPNs)and semi-IPNs were swollen in toluene under the thermodynamic condition of phase separation,or the PVAc component of the IPNs was alcoholyzed to decrease the compatibility between two components.No phase separation was found in IPNs and semi-IPNs with high crosslink density of network I.It is indicated that the mutual entanglements between the two networks is permanent physical entanglements and the phase of the IPNs is stable.

Key words: Poly(vinyl acetate)/poly(methaerylate) 1PNs, Permanent entanglement Compatibility

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