| 含有机硅三元多嵌段共聚物的研究──Ⅲ．不同硬段、半硬段对含有机硅三元多嵌段共聚物性能的影响 |
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| 引用本文： | 史林启,郑国栋,冯之榴.含有机硅三元多嵌段共聚物的研究──Ⅲ．不同硬段、半硬段对含有机硅三元多嵌段共聚物性能的影响[J].功能高分子学报,1995(4). |
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| 作者姓名： | 史林启 郑国栋 冯之榴 |
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| 作者单位： | 中国科学院长春应用化学研究所，南开大学高分子研究所 |
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| 摘 要： | 以双酚Ａ聚砜或酚酞作为硬段，聚对羟基苯乙烯、酚醛、聚羟基醚或聚羟基醚砜作为半硬段，聚二甲基硅氧烷作为软段合成了七种三元多嵌段共聚物，并对其稳定性、动态力学性能进行了比较详细的研究。结果表明这类共聚物在溶液中的稳定性及热稳定性主要与半硬段有关；它们的形态结构同属于微相分离，并在很宽的温度范围内表现出优良的弹性体性质。三元多嵌段共聚物中硬段与半硬段的相容性直接影响其力学性能，当两者的相容性好时，其强度高于对应的二元多嵌段共聚物。
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| 关 键 词： | 三元多嵌段共聚物，硬段．半硬段和软段，相容性 |
The Effect of Diffrent Hard and Semi-Hard Segmentes on the Properties of Segmented Ternary Copolymers Contaning PDMS |
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| Shi Linqi, Zheng Guodong, FengZhiliu.The Effect of Diffrent Hard and Semi-Hard Segmentes on the Properties of Segmented Ternary Copolymers Contaning PDMS[J].Journal of Functional Polymers,1995(4). |
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| Authors: | Shi Linqi Zheng Guodong FengZhiliu |
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| Abstract: | he morphology and properties of the segmented ternary copolymers with polydimethylsiloxane(PDMS)as soft segment,polysulfone(PSF)or poly-cardo-ethersulfone(PES-c)as hard segment and poly-p-hydroxystyrene(PHS),phenolic aldebyde(PA),polyhydroxyether(PHE),or polyhydroxyethersulfone(PHES)as semi-hard segment were studied by a varity of techniques. The results showed that the solubility of these copolymers depended on the bonding structure of the semi-hard segment with PDMS.The misibility of the hard segment with semi-hard segment is very important as far as the mechanical properties of the copolymers are concerned.If the hard segment and semi-hard segment are misible,the copolymer will display good dynamic mechanical as well as tensile properties. |
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| Keywords: | Segmented ternary copolymer Hard semi-hard and soft segment Misibility |
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