【摘要】 <正> 环氧氯丙烷的开环聚合,按照所使用催化体系的特性,聚合物的结晶度可以在很大范围内变动。Vandenberg提出的烷基铝-水催化体系,可制得结晶性的高分子量聚合物。关于聚环氧氯丙烷结晶化过程和结晶的结构已有很多研究。本文采用Flory提出的聚合物结晶在稀释剂存在下熔点降低的理论方程,使用差示扫描量热法,以α-氯萘、甲苯和硝基苯为稀释剂,测定了聚环氧氯丙烷结晶的熔化热力学参数,并与其它聚环氧烷烃的更多还原

【Abstract】 The thermodynamic parameters of fusion of polyepichlorohydrin were investigated by Flory’s method based on the melting point decrease for polymer diluent mixtures. Toluene, α-chloronahthalene and nitrobenzene were used as diluents.The equilibrium melting temperature was obtained by extrapolating the "kinetic" melting points, measured on polymers crystallized at various temperatures.The equilibrium melting temperature, fusion enthalpy and fusion entropy obtained are 116℃, 10.6 KJ/mol asd 27.2 J/mol. K resp.更多还原