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反相色谱是近十年发展起来的研究高聚物性质的一种方法.使用的仪器简便,数据可靠.至今文献上还没有报导用反相色谱对聚2.6萘二甲酸乙二酯(简称聚萘酯或PEN—2.6)玻璃化转变温度的研究.我们用这种方法测定聚萘酯的Tg,研究了不同的“探针分子”、固定相涂膜厚度、载气流速和聚萘酯的结晶度对测定结果的影响.实验部分样品:聚萘酯由2.6萘二甲酸二甲酯与乙二醇经酯交换再缩聚而得.在邻氯苯酚中,35℃[η]=0.48.
Reversed-phase chromatography (RP-HPLC) has been developed in recent ten years as a method to study the properties of polymers, and the instruments used are simple and reliable.Up to now there is no literature report on the determination of poly (2,6-naphthalenedicarboxylate) Naphthalene ester or PEN-2.6) glass transition temperature.We measured the Tg of naphthalene naphthalate by this method, studied the different “probe molecules”, the thickness of the stationary phase coating, the carrier gas flow rate and the naphthalene ester The degree of crystallinity on the determination of the results of the experimental part of the sample: naphthalene naphthalate ester from 2.6 and ethylene glycol transesterification obtained by polycondensation in o-chlorophenol, 35 ° C [η] = 0.48.