中文摘要：

采用浸渍法制备了介孔二氧化硅（SiO2）负载的磷钨杂多酸（PW12）催化剂（PW12、SiO2），其物化性质和表面酸强度经BET，IR，TG—DTG和Hammett指示剂法表征。以PW12／SiO2催化四氢呋喃开环聚合合成聚四氢呋喃（PTHF），考察了PW12的负载量[w（PW12）]和焙烧温度对催化剂活性的影响。实验结果表明，在w（PW12）为35．0％，于230℃焙烧活化3h的条件下制备的催化剂（^35Cat）活性最高。以^35Cat为催化剂，用量占反应物总质量的15．0％时，PTHF收率达60．2％。

英文摘要：

The catalysts of phosphotungstic heteropoly acid （ PW12 ） supported on silica （ SiO2 ）, PW12/SiO2, were prepared by impregnation method. The effect of PW12 loading amount[ w（ PW12 ）] and calcinated temperature on the catalytic activity of PW12/SiO2 were investigated. The results showed that the optimal catalyst（^35Cat） was prepared under the conditions with w（ PW12 ） of 35.0% and calcination at 230 ℃ for 3 h; the yield of PTHF reached 60.2% using ^35Cat as a catalyst when the ^35Cat percent in reactants tatol mass was 15.0%.