ZHAO Min, JIA Zhi-qi, SUN Zi-jin, LIU Xin-wen, ZHAO Li-li, WANG Peng-fei,

GAO Chun-guang, ZHAO Yong-xiang

(1. School of Chemistry and Chemical Engineering, Engineering Research Center for Fine Chemicals of Ministry of Education, Shanxi University, Taiyuan 030006,Shanxi, China; 2.  Shanxi Sanwei Group Co. , Ltd, Hongtong 041603, Shanxi, China )

Abstract: A series catalysts of HPW supported on SiO2 aerogels were prepared by incipient impregnation. The catalysts were characterized by means of BET、XRD、NH3-TPD、FT-IR、Py-IR. The catalysts were applied to THF polymerization. The effects of the HPW loading amount, polymerization reaction time and reaction temperature on the THF polymerization were investigated. The results showed that the optimal loading amount is 50%, the reaction temperature is 50 ℃, the reaction time is 4 h. Under the optimal conditions, the yields PTMEG reached about 53% and the number-average molecular weight was about 2000. The polymer can be used as a textile and other chemical raw materials.

Key words: Phosphotungstic acid; SiO2 aerogel; Tetrahydrofuran; Polymerization reaction

E-mail: cgao@sxu.edu.cn　yxzhao@sxu.edu.cn

Journal of Molecular Catalysis, Vol. 24, Issue 2, 2010, 117-122