Stereospecific polymerization of vinyl acetate in fluoroalcohols - Synthesis of syndiotactic poly(vinyl alcohol)

被引：25
|
作者：
Yamada, K
Nakano, T
Okamoto, Y
机构：
[1] Nagoya Univ, Dept Appl Chem, Grad Sch Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
[2] Nagoya Univ, Joint Res Ctr Precis Polymerizat, Grad Sch Engn,Japan Chem Innovat Inst, Chikusa Ku, Nagoya, Aichi 4648603, Japan
来源：
PROCEEDINGS OF THE JAPAN ACADEMY SERIES B-PHYSICAL AND BIOLOGICAL SCIENCES | 1998年 / 74卷 / 03期
关键词：
poly(vinyl alcohol); radical polymerization; tacticity; vinyl acetate; fluoroalcohol; hydrogen-bond;
D O I：
10.2183/pjab.74.46
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The free-radical polymerization of vinyl acetate (VAc) was carried out in various alcoholic solvents. Fluoroalcohols with a lower pKa and higher bulkiness were effective in enhancing the syndiotactic specificity of the polymerization. The polymerization of VAc in perfluoro-tert-butyl alcohol ((CF3)(3)COH) at -78 degrees C led to a dyad syndiotacticity of 72%, which is the highest value reported for the radical polymerization of vinyl esters. Hydrogen-bonding between the acetyl groups of VAc and polymer and the fluoroalcohol molecule may be responsible for the enhancement of the syndiotactic specific propagation.
引用
收藏
页码：46 / 49
页数：4
相关论文
共 50 条
  • [21] Polymerization of vinyl acetate in fatty acids and properties of poly (vinyl alcohols) derived from the poly (vinyl acetates)
    Takeshi Ishijima
    Yoshiki Mizumori
    Kenji Kikuchi
    Atsushi Suzuki
    Takuji Okaya
    Colloid and Polymer Science, 2005, 283 : 799 - 804
  • [22] Polymerization of vinyl acetate in fatty acids and properties of poly (vinyl alcohols) derived from the poly (vinyl acetates)
    Ishijima, T
    Mizumori, Y
    Kikuchi, K
    Suzuki, A
    Okaya, T
    COLLOID AND POLYMER SCIENCE, 2005, 283 (07) : 799 - 804
  • [23] Synthesis of high molecular weight poly(vinyl alcohol) by low temperature polymerization of vinyl acetate in tertiary butyl alcohol and the following saponification
    Lyoo, WS
    Han, SS
    Choi, JH
    Yoo, SW
    Hong, SI
    Ha, WS
    POLYMER-KOREA, 2000, 24 (05) : 610 - 620
  • [24] Synthesis and characters of hyperbranched poly(vinyl acetate) by RAFT polymerization
    Zhou, Xiaobo
    Zhu, Jian
    Xing, Minying
    Zhang, Zhengbiao
    Cheng, Zhenping
    Zhou, Nianchen
    Zhu, Xiulin
    EUROPEAN POLYMER JOURNAL, 2011, 47 (10) : 1912 - 1922
  • [25] Preparation of poly(vinyl alcohol) having various molecular weights by the low temperature solution polymerization of vinyl acetate in methanol
    Lyoo, WS
    Ghim, HD
    POLYMER-KOREA, 1996, 20 (05) : 860 - 869
  • [26] Effect of poly(vinyl alcohol) and poly(vinyl alcohol) mono thiol on the stability properties of poly(vinyl acetate) latex
    Lee, SY
    Park, LS
    POLYMER-KOREA, 2000, 24 (05) : 579 - 588
  • [27] Influence of additives on model emulsion polymerization of vinyl acetate (VAc) using poly(vinyl alcohol) (PVA) as a protective colloid
    Suzuki, Atsushi
    Yano, Makoto
    Kikuchi, Kenji
    Okaya, Takuji
    COLLOID AND POLYMER SCIENCE, 2006, 285 (02) : 185 - 192
  • [28] Influence of additives on model emulsion polymerization of vinyl acetate (VAc) using poly(vinyl alcohol) (PVA) as a protective colloid
    Atsushi Suzuki
    Makoto Yano
    Kenji Kikuchi
    Takuji Okaya
    Colloid and Polymer Science, 2006, 285 : 185 - 192
  • [29] Preparation of Highly Syndiotactic Poly(vinyl alcohol) by Fractionation
    Tohei Yamamoto
    Koichi Kawakami
    Takeshi Nishikawa
    Mitsuhiro Sugimoto
    Nobuhiro Kawatsuki
    Osamu Sangen
    Mikiharu Kamachi
    Polymer Journal, 1998, 30 : 444 - 445
  • [30] Unexpected Secondary Nucleation in Poly(Vinyl acetate) Nanoparticle Synthesis by Ab Initio Batch Emulsion Polymerization Using Poly(Vinyl alcohol) as Surfactant
    Rocha-Botello, Gabriela
    Olvera-Guillen, Roberto
    Herrera-Ordonez, Jorge
    Cruz-Soto, Martha
    Victoria-Valenzuela, David
    MACROMOLECULAR REACTION ENGINEERING, 2019, 13 (05)
12345