A novel poly(methyl methacrylate) (PMMA)‐based copolymer (PMMA‐co‐BDPA) rich in aromatic rings was synthesized via radical copolymerization between a phosphorus‐containing acrylic monomer (BDPA) and methyl methacrylate (MMA). UV‐vis spectroscopy demonstrated that the copolymer had high transparency. Thermogravimetric analysis (TGA) and a differential scanning calorimeter (DSC) were used to test the thermal properties of the composites. Additionally, the PMMA‐co‐BDPA‐15 copolymer exhibited a 23% increase in the limited oxygen index (LOI) value. A cone calorimeter test indicated that the peak heat release rate (pk‐HRR) of PMMA‐co‐BDPA was reduced by 29.2% compared with that of pure PMMA, and the carbon yield of burning was obviously increased. The combined test results demonstrated that the prepared copolymer material had good transparency, thermal stability, and flame retardancy.

中文翻译：

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具有增强的耐热和阻燃性能的新型含磷酸盐的高度透明的PMMA共聚物的合成

通过含磷的丙烯酸单体（BDPA）和甲基丙烯酸甲酯（MMA）之间的自由基共聚反应，合成了一种新型的富含芳环的基于聚甲基丙烯酸甲酯（PMMA）的共聚物（PMMA-co-BDPA）。紫外可见光谱表明该共聚物具有很高的透明度。使用热重分析（TGA）和差示扫描量热仪（DSC）来测试复合材料的热性能。此外，PMMA-co-BDPA-15共聚物的极限氧指数（LOI）值提高了23％。锥形量热仪测试表明，与纯PMMA相比，PMMA-co-BDPA的峰值放热率（pk-HRR）降低了29.2％，并且燃烧的碳收率明显增加。综合测试结果表明，所制备的共聚物材料具有良好的透明度，