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Structure–property correlation of silicone hydrogels based on 3‐[tris(trimethylsilyloxy)silyl]propyl methacrylate monomer
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-03-27 , DOI: 10.1002/app.49198 Asmita Sharma 1 , Shreedhar Bhat 1 , Debarshi Dasgupta 1 , Laxmi Samantara 1 , Kothapalli Kalyanachakravarthi 1 , Bindu Manchanda 2 , Chetan Shah 1 , Anubhav Saxena 1 , Veena Choudhury 2 , Titash Mondal 1
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-03-27 , DOI: 10.1002/app.49198 Asmita Sharma 1 , Shreedhar Bhat 1 , Debarshi Dasgupta 1 , Laxmi Samantara 1 , Kothapalli Kalyanachakravarthi 1 , Bindu Manchanda 2 , Chetan Shah 1 , Anubhav Saxena 1 , Veena Choudhury 2 , Titash Mondal 1
Affiliation
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We have investigated silicone‐based hydrogels highlighting the effect of silyl comonomer, method of polymerization and nature of cross‐linker on their bulk as well as surface properties. Transmission electron microscopy results showed that solution thermal polymerization mitigated phase segregation of hydrophobic siloxane components over bulk thermal polymerization. 2‐hydroxyethyl methacrylate cannot provide transparent hydrogels with 3‐[tris(trimethylsilyloxy)silyl]propyl methacrylate alone and requires equal weight percent of N, N‐dimethylacrylamide to compatibilize the comonomers to yield a silicone hydrogel network showing no microphase separation. The differentiated surface properties of silicone hydrogels containing varying amount of siloxane comonomers were also unraveled and rationally supported by surface infrared spectroscopic results. Different molecular states of water entrapped within hydrogel network were identified to understand the nature of gel‐mesh functionality. The effect of silicone pendant groups on the gel elasticity was also explored.
中文翻译：
基于3- [三[三（三甲基甲硅烷氧基）甲硅烷基]丙基]丙烯酸丙酯单体的有机硅水凝胶的结构-性质相关性
我们研究了基于有机硅的水凝胶，重点介绍了甲硅烷基共聚单体的作用，聚合方法和交联剂的性质对其体积以及表面性能的影响。透射电子显微镜结果表明，与本体热聚合相比，溶液热聚合减轻了疏水硅氧烷组分的相分离。甲基丙烯酸2-羟乙酯不能单独提供具有甲基丙烯酸3- [三（三（三甲基甲硅烷氧基）甲硅烷基）甲硅烷基]丙基酯的透明水凝胶，并且需要等重量百分比的N，N-二甲基丙烯酰胺来使共聚单体相容，以产生没有微相分离的有机硅水凝胶网络。含有不同数量的硅氧烷共聚单体的有机硅水凝胶的差异化的表面性质也得到了阐明，并得到了表面红外光谱结果的合理支持。确定了水凝胶网络中截留的水的不同分子状态，以了解凝胶网功能的性质。还研究了硅氧烷侧基对凝胶弹性的影响。
更新日期：2020-04-17
中文翻译：
基于3- [三[三（三甲基甲硅烷氧基）甲硅烷基]丙基]丙烯酸丙酯单体的有机硅水凝胶的结构-性质相关性
我们研究了基于有机硅的水凝胶，重点介绍了甲硅烷基共聚单体的作用，聚合方法和交联剂的性质对其体积以及表面性能的影响。透射电子显微镜结果表明，与本体热聚合相比，溶液热聚合减轻了疏水硅氧烷组分的相分离。甲基丙烯酸2-羟乙酯不能单独提供具有甲基丙烯酸3- [三（三（三甲基甲硅烷氧基）甲硅烷基）甲硅烷基]丙基酯的透明水凝胶，并且需要等重量百分比的N，N-二甲基丙烯酰胺来使共聚单体相容，以产生没有微相分离的有机硅水凝胶网络。含有不同数量的硅氧烷共聚单体的有机硅水凝胶的差异化的表面性质也得到了阐明，并得到了表面红外光谱结果的合理支持。确定了水凝胶网络中截留的水的不同分子状态，以了解凝胶网功能的性质。还研究了硅氧烷侧基对凝胶弹性的影响。
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