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本文用~1HNMR方法研究了对苯二酚—4,4′-二氯二苯砜—双酚A(HQ-DCDPS-BisA)三元共缩聚物的组成。研究结果表明:对苯二酚聚砜(HQ·PSF)均缩聚物与HQ-DCDPS-BisA三元共缩聚物中各组质子峰的δ值与根据取代苯的经验公式(δ=7.30-∑S)的计算值是相符的;各组质子峰面积的比与按投料量预计的理论值也是一致的。验证了三元共缩聚物组成的结构式是[(-0— 0— SO_2—)_m—(O—C——O—SO_2—)_u—]_x其中m/n=1/19,1/9,1.5/8.5,2/8,3/7,5/5,7.5/2.5等。文中还给出了HQ·PSF均缩聚物与HQ·DCDPS-BisA三元共缩聚物中两组质子的偶合常数值分别是J_(bc)=8.8Hz,J_(de)=8.6Hz。
In this paper, the composition of hydroquinone-4,4’-dichlorodiphenyl sulfone-bisphenol A (HQ-DCDPS-BisA) ternary copolymer was studied by ~ 1HNMR method. The results show that the δ values of proton peaks in each group of HQ-PSF homopolymer and HQ-DCDPS-BisA ternary copolymer are in agreement with the empirical formula (δ = 7.30-Σ S) is consistent with the calculated values; proton peak area ratio of each group is expected to feed the theoretical value is also consistent. The structure of ternary copolycondensate was verified to be [(-0- 0- SO 2 -) _ m- (O-C-O-SO 2 -) _ u -] x where m / n = 1/19, 1/9 , 1.5 / 8.5, 2/8, 3/7, 5/5, 7.5 / 2.5 and the like. In the paper, the coupling constants of two protons of HQ · PSF homopolymer and HQ · DCDPS-BisA ternary copolymer are J bc = 8.8Hz and J de = 8.6Hz respectively.