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研究了聚苯乙烯(S)-聚环氧乙烷(E)星形嵌段共聚物的结晶及络合性质.结果表明,结晶度随E含量及分子量增大而增大.共聚物熔融后在20℃淬火比0℃淬火的结晶规整,氯仿溶液浇铸的样品比乙苯浇铸的规整.共聚物在甲苯溶液中呈现特殊的介晶现象.紫外吸收光谱表明,它能与苦味酸碱金属盐络合,使不溶于氯仿及甲苯的钾盐或钠盐进入溶液.
The crystallization and complexation properties of the polystyrene (S) -polyethylene oxide (E) star block copolymers were studied.The results show that the crystallinity increases with the increase of the E content and the molecular weight.After the copolymer is melted The samples hardened by quenching at 20 ° C were harder than those quenched at 0 ° C and the samples cast in the chloroform solution were more regular than the ethylbenzene cast.The copolymers exhibited a special mesogenic phenomenon in the toluene solution.The UV absorption spectra showed that it interacted with picric acid alkali metal salt Complex, make insoluble in chloroform and toluene potassium salt or sodium salt into the solution.