Chem. J. Chinese Universities ›› 1991, Vol. 12 ›› Issue (10): 1414.

• Articles • Previous Articles     Next Articles

Studies on Polymerization of a-Pinene Initiated by a New System AlCl3/Activator/Donors (Ⅰ)--AlCl3/SbCl3/Ester Initiating System

Deng Yun-xiang1, Lin Hua-yu1, Higashimura T.2   

  1. 1. Department of Chemistry, Zhongshan University, Guangzhou, 510275;
    2. Faculty of Engineering, Kyoto University, Japan
  • Received:1991-01-29 Online:1991-10-24 Published:1991-10-24

Abstract: The new initiating system AlCl3/A/D (Aas the activator, modifier and complex agent for Aids; Das the donors) for the polymerization of a-pinene was studied. It was found that some of these initiating systems have a high activity for cationic polymerization of a-pinene and give a good yield of a-pinene resin with high molecular weights. For example, the AlCl3/SbCl3/ethyl benzoate (EB) initiating system gives the yield 87. 3% of resin with S. P. 128, 8℃ in toluene at-15-25℃.In this paper, the kinetic behavior of these initiating systems and the characteristic of polymerization products are studied. The effects of various donors, the amount of SbCl3added, solvents, temperatures and concentrations of EB, initiator and monomers on the polymerization of a-pinene are investigated.

Key words: New initiator, α-Pinene, Cationic polymerization

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