Chem. J. Chinese Universities ›› 1988, Vol. 9 ›› Issue (2): 178.
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Yang Changzheng1, Gu Xuerong1, Mao Xiaoli1, Lu Xingjun1, Chen Nandou2
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Abstract: Aseries of segmented polyester polyurethanc block copolymers based on poly (ethylene-prOpy]ene)adipate(PEPA),4,4' -methylene diphenylere diisocyanate (MDJ) and N-methyl-diethanolamine were synthesized. Their zwittcrionomers in different degrees of ionization were prepared by quaternization of the tertiary arrine with γ-propane sultone. The effects of hard segmente contents and degrees of ionization on the extent of microphase separation and physical properties were studied by IRspectrometry, differential scanning calorimetry, dynamic mechanical spectroscopy, dielectric measurement and stress-stain analysis.The reason which causes the change of morphology was discussed.
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Yang Changzheng, Gu Xuerong, Mao Xiaoli, Lu Xingjun, Chen Nandou. Studies on Segmented Polyester Polyurethane Block Copolymers and Their Zwitterionomers[J]. Chem. J. Chinese Universities, 1988, 9(2): 178.
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http://www.cjcu.jlu.edu.cn/EN/Y1988/V9/I2/178
