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用小角Ｘ－射线散射（ＳＡＸＳ）法研究了聚四甲基苯撑硅氧烷（ＰＴＭＰＳ）和聚四甲基苯撑硅氧烷－二甲基硅氧烷（ＰＴＭＰＳ－ＤＭＳ）多嵌段共聚物超分子结构参数——结晶层厚度ａ、一维结晶度Ｋ和长周期Ｃ随ＤＭＳ含量变化的规律．发现ＤＭＳ含量为５０％时，关系曲线均呈现一个转折点．
The effects of multi-block copolymerization of poly (tetramethylphenyl) siloxane (PTMPS) and polytetramethylenepolysiloxane-dimethylsiloxane (PTMPS-DMS) were studied by small angle X-ray scattering (SAXS) Supermolecular structure parameters - the thickness of the crystalline layer a, the one-dimensional crystallinity K and the long period C with the DMS content changes. When the content of DMS was found to be 50%, the relationship curve showed a turning point.