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以双酚Ａ聚砜（ＰＳＦ）为硬段、聚对羟基苯乙烯（ＰＨＳ）为半硬段、聚二甲基硅氧烷（ＰＤＭＳ）为软段合成了三元多嵌段共聚物，并对其动态力学性能和抗张性能进行了比较详细的研究，结果表明该三元多嵌段共聚物为多相结构；在引入半硬段ＰＨＳ后两相间的界面相增宽，粘接力增大，其强度和模量高且稳定，使含有机硅高分子材料强度低的弱点得以改善。扭辩分析（ＴＢＡ）结果显示，这种三元多嵌段共聚物具有多重转变，且在－２０℃至５０℃间有两个较大的几乎重叠的吸收峰；这表明这种三元多嵌段共聚物的相分离结构较为复杂，并有良好的阻尼性能。
A ternary multi-block copolymer was synthesized with PSF as hard segment, poly (p-hydroxystyrene) as hard segment and polydimethylsiloxane (PDMS) as soft segment The dynamic mechanical properties and tensile properties were studied in detail. The results showed that the ternary multiblock copolymer was multiphase structure. After the introduction of semi-hard PHS, the interfacial phase broadened and the adhesion increased Large, its strength and modulus are high and stable, so that the weakness of silicone polymer materials with low strength can be improved. Torsion analysis (TBA) results show that this ternary multiblock copolymer has multiple transitions with two larger, almost overlapping absorption peaks between -20 ° C and 50 ° C; this suggests that this ternary Block copolymer phase separation structure is more complex, and has good damping properties.