中华医学超声杂志

应用化学 ›› 1996, Vol. 0 ›› Issue (6): 15-18.

• 研究论文 • 上一篇    下一篇

乙烯基聚硅氧烷共聚反应竞聚率的测定及其对复合粒子形态的影响

何卫东1, 曹春涛1, 潘才元1, 冯建平2   

  1. 1. 中国科学技术大学材料科学与工程系 合肥 230026;
    2. 中国科学技术大学结构成分分析中心 合肥
  • 收稿日期:1996-01-31 修回日期:1996-07-10 出版日期:1996-12-10 发布日期:1996-12-10

Determination of the Reactivity Ratios of Copolymerization between Vinyl-containing Polysiloxane and Vinyl Monomers and the Influence on the Morphology of Composite Particles

He Weidong1, Cao Chuntao1, Pan Caiyuan1, Feng Jianping2   

  1. 1. Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026;
    2. Centre of Stucture and Component Analysis, University of Science and Technology of China, Hefei
  • Received:1996-01-31 Revised:1996-07-10 Published:1996-12-10 Online:1996-12-10

PDF

471

被引次数

13 | 1

摘要： 用Fimeman-Ross法处理数据,测定了乙烯基聚硅氧烷(SV)与苯乙烯(ST)、甲基丙烯酸甲酯(MMA)和甲基丙烯酸正丁酯(n-BMA)的共聚反应的竞聚率,结果为rST=1.45和rSV=1.08,rMMA=0.78和rSV=2.01,rn-BMA=0.46和rSV=3.49.以含SV的乳液作为种子进行烯类单体的乳液聚合,单体和SV共聚反应对复合粒子的形态有很大影响。

关键词: 乙烯基聚硅氧烷, 烯类单体, 共聚反应, 竞聚率, 种子乳液聚合

Abstract: The copolymerization reactivity ratios of vinyl-containing polysiloxane(SV) with styrene(ST),methyl methacrylate(MMA) or n-butyl methacrylate(BMA) were measured using Fineman-Ross method,and the results were:rst =1.45 and rsv =1.08 for ST-SV,rMMA =0.78 and rsv=2.01 for MMA-SV,rn-BMA =0.46 and rsv =3.49 for BMA-SV,respectively.The reactivity ratios between vinyl-containing polysiloxane and vinyl monomers had a strong effect on the morphology of the particles prepared by the seeded emulsion polymerization.

Key words: vinyl-containing polysiloxane, vinyl monomer, copolymerization, reactivity ratio, seeded emulsion polymerization

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