Abstract Two kinds of diols (MI and MII) and a triol (MIII) with tris(trimethylsiloxy)silyl propyl as the side chains were designed and synthesized. Then three series of silicone modified polyurethanes (SPUI-III) prepolymers were prepared from MI-III, polyether triol (N307) and dicyclohexylmethylmethane-4, 4′-diisocyanate (HMDI). Their structures were confirmed by 1H NMR, 13C NMR and FTIR analysis. Then SPUI-III films were obtained by the moisture curing of the polyurethanes prepolymers, and their properties were investigated by Attenuated total reflection flourier transformed infrared spectroscopy (ATR-FTIR), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), thermogravimetric analysis (TGA), differential scanning calorimeter (DSC), water surface contact angle (WCA), water and ethanol absorption ratio, stress-strain, abrasion resistance and X-ray diffraction (XRD) analysis. It has been demonstrated that easier surface migration of side-chain silicone segments means only 10 wt% of MI-III can improve the surface hydrophobicity and smoothness, water resistance and abrasion resistance of SPU significantly. Meanwhile, the balance between the polar groups in the backbones and the nonpolar silicone oligomers in the side chains of MI-III is a key to control solubility, compatibility, migration and phase separation with polyurethane system. And difference in structures and dosages of MI-III can influence the abrasion resistance properties, microphase separation, thermal and tensile properties of the prepared SPU materials. Low loadings (10 wt%) of MI-III make remarkable abrasion resistance and excessive loadings make subdued abrasion resistance. Interestingly, the special microphase separation patterns could be obtained in SPUIII series with a proper MIII loading (10–20 wt %).

中文翻译：

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以三(三甲基甲硅烷氧基)甲硅烷基丙基为侧链的聚氨酯：合成与性能

摘要 设计合成了两种二醇(MI和MII)和一种以三(三甲基甲硅烷氧基)甲硅烷基丙基为侧链的三醇(MIII)。然后由MI-III、聚醚三醇(N307)和二环己基甲基甲烷-4,4'-二异氰酸酯(HMDI)制备三个系列的有机硅改性聚氨酯(SPUI-III)预聚物。它们的结构经 1H NMR、13C NMR 和 FTIR 分析证实。然后通过聚氨酯预聚物的湿固化获得 SPUI-III 薄膜，并通过衰减全反射荧光变换红外光谱 (ATR-FTIR)、扫描电子显微镜 (SEM)、能量色散 X 射线光谱 (EDS) 研究其性能。 )、热重分析 (TGA)、差示扫描量热仪 (DSC)、水表面接触角 (WCA)、水和乙醇的吸收比、应力-应变、耐磨性和 X 射线衍射 (XRD) 分析。已经证明侧链有机硅链段更容易的表面迁移意味着仅 10 wt% 的 MI-III 就可以显着提高 SPU 的表面疏水性和光滑度、防水性和耐磨性。同时，MI-III主链中极性基团与侧链非极性有机硅低聚物之间的平衡是控制与聚氨酯体系的溶解性、相容性、迁移和相分离的关键。MI-III结构和用量的不同会影响制备的SPU材料的耐磨性能、微相分离、热性能和拉伸性能。MI-III 的低负载 (10 wt%) 具有显着的耐磨性，而过多的负载则使耐磨性减弱。有趣的是，