4,4′-二乙炔二苯甲烷与苯乙炔的共聚及共聚物的表征研究

THE STUDY OF SYNTHESIS AND CHARACTERISTIC OF COPOLYMERS OF 4,4'-DIETHYNYLDIPHENYLMETHANE AND PHENYLACETYLENE

本文做了4,4′-二乙炔二苯甲烷的本体热均聚和催化均聚,并用(Ph_3P)_2PdCl_2为催化剂做了4,4′-二乙炔二苯甲烷与苯乙炔的共聚,对均聚和共聚物中的不溶不熔组分测定了密度、溶胀度、Huggins参数以及交联点间的平均分子量(?)_c。实验表明,该交联聚合物的最良溶剂是四氢呋喃,溶度参数为9.9ca1~0.5。cm^(-1.5),当用四氢呋喃为溶剂时的Huggins参数为0.34,并且在单体摩尔比中4,4′-二乙炔二苯甲烷用量越多,溶胀度越小,交联度越大。红外光谱分析表明,所有均聚及共聚物都为反式结构。

In this paper, the poly(4,4'-diethynyldiphenylmethane) is synthesised by the thermo-polyme-rization and catalysis polymerization (using (Ph3P)2PdCl2 as catalyst) of 4,4'-diethynyldiphen-ylmethane in bulk, and the copolymers of 4,4 -diethynyldiphenylmethane and phenylacetypene is also synthesised using (Ph3P)2 PdCl2 as catalyst. The density, the swellability and, the solubility parameter, Huggins parameter and the average molecular weight between crosslinks (Mc) of crosslinking products are measured. And the thermogravimetric analysis of crosslinking products and Infrared Spectra of all polymers are also done.