摘要
将苯乙炔单体加入紫外激光辐照的W(CO)_6-CCl_4溶液后,得到了聚苯乙炔,其分子量达9.36×10~4.本文研究了激光参数(能量、波长和辐照时间)以及W(CO)_6浓度对聚合的影响,并对W(CO)_6、Mo(CO)_6和Cr(CO)_6催化聚合苯乙炔的结果进行了对比.实验发现激光参数及催化剂对聚合有明显的影响.此外,紫外激光-W(CO)_6-CCl_4是一种新型高效催化体系,其寿命约为15小时.
Polyphenylacetylene was obtained in CC1_4 in the presence of ultraviolet laser-activated W(CO)_6 and its weight-average molecular weight was measured to reach 9.36×10~4. The influence of laser operating parameters (wavelength, energy and irradiation time) and the concentration of W(CO)_6 on the polymerization was investigated. The results of W(CO)_6, Mo(CO)_6 and Cr(CO)_6 photocatalysis polymerization of phenylacetylene are given. Experiments show that laser operating parameters and catalysts have influenced the polymerization obviously, and UV laser-W(CO)_6-CCl_4 is a new type of highly efficient catalyst whose lifetime is about 15 hours.
基金
中国科学院"激光与物质相互作用"重大项目
国家自然科学基金
