Effect of Stcreoisomeric Bis(2-ethylhexyl) Tartrates as Additives on Stabilization of Poly(vinyl chloride)

DOI Web Site
  • MARUYAMA Kazushige
    Department of Applied Chemistry, Faculty of Engeneering, Osaka Institute of Technology;
  • OHORI Shinji
    Department of Applied Chemistry, Faculty of Engeneering, Osaka Institute of Technology;
  • IIDA Takeo
    Department of Applied Chemistry, Faculty of Engeneering, Osaka Institute of Technology;
  • GOTO Kunio
    Department of Applied Chemistry, Faculty of Engeneering, Osaka Institute of Technology;

Bibliographic Information

Other Title
  • ポリ(塩化ビニル)の熱安定化に対ずる酒石酸(2-エチルヘキシル)光学異性体の添加効果
  • Investigation on polyol derivatives. IV. Effect of stereoisomeric bis(2-ethylhexyl) tartrates as additives on stabilization of poly(vinyl chloride).

Description

In order to examine the influence of the conformation of two vicinal hydroxyl groups upon the stabilization of poly(vinyl chloride), bis(2-ethylhexyl) esters of stereoisomeric tartaric acids (DOT) were combined into PVC together with unpoisonous Zn/Ca synergetic soaps. Each tartrate showed better compatibility with the PVC-DOP system than tartaric acid. Specific rotation of meso-DOT did not change during the course of esterification and on heating in the presence of ZnCl2 which would be produced from the metal soap and hydrogen chloride. meso-DOT and dl-DOT slowed down the appearance of zinc burning and the former exhibited the marked synergetic effect as a second stabilizer more than the latter in combined use with synergetic soaps. This is thought to be based on the ease of masking ZnCl2 with the vicinal hydroxyl groups and the carboxyl groups near the hydroxyl g roups.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1985 (1), 75-78, 1985-01-10

    The Chemical Society of Japan

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