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本文用扭辫分析(TBA)和红外光谱研究了双[4-(4-乙炔基苯氧基)苯基]砜(简称四苯醚砜双炔)及其聚合物的动态力学行为.TBA热谱的结果可以明显地表征四苯醚砜双炔的熔融及其低温区和高温区的化学反应特征,以及其聚合物的玻璃化转变和分解反应等物理-化学转变行为.实验表明四苯醚砜双炔聚合物的玻璃化温度T_g极大地取决于聚合条件.
In this paper, the dynamic mechanical behaviors of bis [4- (4-ethynylphenoxy) phenyl] sulfone and its polymers were studied by torsion-braid analysis (TBA) and infrared spectroscopy. The results of spectroscopy can be used to characterize the chemical reaction characteristics of diphenylacetylene sulfides, their chemical reactions at low temperature and high temperature, as well as their physico-chemical transformations such as glass transition and decomposition reactions. The glass transition temperature T_g of the sulfone alkyne polymer depends greatly on the polymerization conditions.