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首页> 外文期刊>Journal of Applied Polymer Science >Interpenetrating polymer networks. II. Sunlight-induced polymerization of multifunctional acrylates
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Interpenetrating polymer networks. II. Sunlight-induced polymerization of multifunctional acrylates

机译：互穿聚合物网络。二。阳光诱导的多功能丙烯酸酯聚合

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摘要

Protective coatings and glass laminates have been readily obtained by sunlight-curing of acrylate monomers dispersed in a poly(methyl methacrylate) matrix or in a styrene-butadiene rubber, in the presence of an acylphosphine oxide photoinitiator. The polymerization reaction was followed by infrared spectroscopy and by gel fraction measurements and was shown to proceed extensively within minutes. As expected, the inhibitory effect of atmospheric O-2 on such radical-initiated reactions was less pronounced in solid than in Liquid samples. The monomer, photoinitiator, and plasticizer concentrations were found to have a strong influence on the rate of polymerization, the final degree of conversion, and the hardness of the sun-cured polymer. The adhesion of the cured coating on glass was substantially improved by the addition of an acrylate-grafted organosol silica. To produce strongly adhesive glass laminates, a photocurable acrylate resin was poured between two coated glass plates and exposed to sunlight for a few seconds. The same formulation can serve as a light-sensitive quick setting glue to bond glass to a variety of materials [polycarbonates, poly(vinyl chloride), aluminium, and steel]. (C) 1998 John Wiley & Sons, Inc. [References: 22]
机译：通过在酰基氧化膦光引发剂的存在下，将分散在聚（甲基丙烯酸甲酯）基体或苯乙烯-丁二烯橡胶中的丙烯酸酯单体进行阳光固化，可以轻松获得保护性涂料和玻璃层压板。聚合反应通过红外光谱和凝胶分数测量进行，并显示在数分钟内广泛进行。不出所料，固体中的大气O-2对这种自由基引发的反应的抑制作用不如液体样品中的明显。发现单体，光引发剂和增塑剂的浓度对聚合速率，最终转化率和阳光固化聚合物的硬度有很大影响。通过添加丙烯酸酯接枝的有机溶胶二氧化硅，可以大大提高固化涂层在玻璃上的附着力。为了生产强粘合性玻璃层压板，将可光固化的丙烯酸酯树脂倒入两块涂覆的玻璃板之间，并暴露在阳光下几秒钟。相同的配方可以用作光敏快速固化胶，将玻璃粘合到各种材料上（聚碳酸酯，聚氯乙烯，铝和钢）。 （C）1998 John Wiley＆Sons，Inc. [参考：22]

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