超高相对分子质量聚(甲基)丙烯酸酯的制备及应用

Preparation and Application of Ultrahigh Relative Molecular Mass Poly(Methyl) Acrylate

介绍了制备超高相对分子质量聚(甲基)丙烯酸酯的常用方法,如等离子体引发自由基聚合、单电子转移-衰减链转移自由基聚合、反向原子转移自由基聚合、可逆加成-断裂链转移聚合、高压原子转移自由基聚合、金属催化活性自由基聚合等,分析了单体含量、催化剂种类和用量、引发剂种类和含量、反应温度、反应时间、反应压力等对合成超高相对分子质量聚(甲基)丙烯酸酯的影响,介绍了其良好的机械强度和透光性能以及其应用情况。认为超高相对分子质量聚(甲基)丙烯酸甲酯其韧性不足,极大地限制了其适用范围,如果将其与纳米材料复合改性将可以弥补这个缺点。复合改性的超高相对分子质量聚(甲基)丙烯酸甲酯将在有机玻璃及包覆材料等领域中具有非常广泛的应用前景。

The common synthetic methods of ultrahigh relative molecular mass poly(methyl) acrylate were introduced in this paper,containing plasma-initiated polymerization,single electron transfer-degenerative chain transfer radical polymerization,reverse atom transfer radical polymerization,reversible addition- fragmentation chain transfer polymerization,high pressure atom transfer radical polymerization,metal—catalyzed living radical polymerization.Moreover,the effects of the concentration of monomer,the sort and concentration of catalyst,the sort and concentration of initiator,reaction temperature,reaction time,reaction pressure on preparing ultrahigh relative molecular mass poly(methyl) arcylate were analyzed in detail,then,we introduced the excellent mechanical intensity,the performance of pervious to light and its application.Toughness of ultrahigh relative molecular mass poly(methyl) acrylate was insufficient which greatly limited its scope of application,if we make compound modification with the nanometer material we can solve the shortcoming,and it will have great application prospect in the field of organic glass and cladding materials.