【摘要】 用红外光谱法揭示了环型高聚物与其线型母体的不同特征。考察了环型聚α-甲基苯乙烯和环型聚苯乙烯在两种不同成环剂情况下的红外光谱,讨论了表征环型高聚物存在的特征谱带,合成了模型化合物以验证环型高聚物特征谱带的客观存在,为进一步确定环型高聚物的存在进行了光谱探讨。同时还研究了环型高聚物分子量与特征谱带强度的定量关系,并观测了升温,淬火过程中谱带强度的变化。更多还原

【Abstract】 The different characters between macrocyclic polymers and their precursors in the conditions of different cyclizing agents were investigated by FT-IR. The characteristic band of macrocyclic polymers was observed and, further more, the model compounds were synthesised, whose spectra proved the existence of macrocyclic polymers. Moreover, the dependence of intensity of the characteristic band and molecular weight was studied. The change of the band intensity with temperature was also observed.更多还原