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首页> 外文期刊>RSC Advances >Synthesis and characterization of UV-curable acrylate films modified by functional methacrylate terminated polysiloxane hybrid oligomers
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Synthesis and characterization of UV-curable acrylate films modified by functional methacrylate terminated polysiloxane hybrid oligomers

机译：功能性甲基丙烯酸酯封端的聚硅氧烷杂化低聚物改性的紫外光固化丙烯酸酯薄膜的合成与表征

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摘要

A series of novel methacrylate terminated polysiloxane hybrid oligomers and functional acrylate oligomers were synthesized and characterized by GPC, FT-IR and NMR. The functional polysiloxane oligomers were introduced into the acrylate UV-curing system to improve its surface and thermal properties. With increasing the organosiloxane content, the contact angles of the UV-cured films increased, suggesting that the organosiloxane segments migrated to the top surface. The SEM and EDS results demonstrated the migration of the organosiloxane segments. The refractive index results showed that the optical performance did not decrease after the organosiloxane segments were incorporated. According the TGA curves, the decomposition temperatures of the polysiloxane/acrylate composite UV-cured films were higher than that of the pure acrylate UV-cured film, which demonstrated that the organosiloxane groups enhanced the thermal properties of the acrylate film due to the high energy of the Si-C bond. The observation of the fractured-surface morphology showed that the organosiloxane segments floated on the surface of the UV-cured films.
机译：合成了一系列新型的甲基丙烯酸酯封端的聚硅氧烷杂化低聚物和功能性丙烯酸酯低聚物，并通过GPC，FT-IR和NMR对其进行了表征。将功能性聚硅氧烷低聚物引入丙烯酸酯UV固化体系中，以改善其表面和热性能。随着有机硅氧烷含量的增加，紫外线固化膜的接触角增加，这表明有机硅氧烷链段迁移到顶表面。 SEM和EDS结果证明了有机硅氧烷链段的迁移。折射率结果表明，引入有机硅氧烷链段后，光学性能没有降低。根据TGA曲线，聚硅氧烷/丙烯酸酯复合UV固化膜的分解温度高于纯丙烯酸酯UV固化膜的分解温度，这表明有机硅氧烷基团由于高能量而增强了丙烯酸酯膜的热性能。 Si-C键。断裂表面形态的观察表明，有机硅氧烷链段漂浮在UV固化膜的表面上。

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