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引用次数: 0
摘要
在这项工作中，我们报道了单体，如双酚a -甲基丙烯酸缩水甘油酯（双- gma）， n -乙烯基吡罗烷酮（NVP）和2-羟基甲基丙烯酸乙酯（HEMA），接枝丙烯酸和衣通酸共聚物[聚（AA-co-IA）]用简单的缩聚技术。通过FTIR、tg - dtg、DSC和SEM对所得接枝共聚物进行了表征。这些研究都证实了接枝共聚物的形成。我们通过改变单体浓度比和催化剂浓度来研究接枝度的变化。然后将所有合成的接枝共聚物与HEMA和樟脑醌混合，制成LED光固化牙科聚合物。详细研究了固化接枝共聚物的热物理性能，如强度和硬度，发现所开发的复合材料在抗压强度方面比商业样品强35%。
Effect of NVP, HEMA, and Bis-GMA Grafting on Thermal and Physical Properties of Poly(AA-co-IA)
In this work, we report the grafting of monomers, such as bisphenol-A-glycidyl methacrylate (bis-GMA), N-vinylpyrrolidone (NVP), and 2-hydroxy ethyl methacrylate (HEMA), on the copolymer of acrylic and itaconic acid [poly (AA-co-IA)] using simple condensation polymerization technique. The resultant graft copolymers are characterized by FTIR, TGA-DTG, DSC, and SEM analysis. All these studies confirm the formation of grafted copolymers. We have varied the monomer concentration ratios and catalyst concentrations to study the variations in degree of grafting. All the synthesized graft copolymers are then mixed with HEMA and camphorquinone to make an LED light-curable dental polymer. Thermal and physical properties, such as the strength and hardness of the cured grafted copolymers, are studied in detail and found that the developed composite is 35% stronger in terms of compressive strength as compared to commercial samples.
期刊介绍：
Macromolecular Symposia presents state-of-the-art research articles in the field of macromolecular chemistry and physics. All submitted contributions are peer-reviewed to ensure a high quality of published manuscripts. Accepted articles will be typeset and published as a hardcover edition together with online publication at Wiley InterScience, thereby guaranteeing an immediate international dissemination.
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