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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis of an acrylate elastomer with UV stabilization and its application in polyoxymethylene
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Synthesis of an acrylate elastomer with UV stabilization and its application in polyoxymethylene

机译：具有紫外线稳定作用的丙烯酸酯弹性体的合成及其在聚甲醛中的应用

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In this study, an acrylate elastomer with light-stable functional groups was synthesized by methyl methacrylate (MMA), butyl acrylate (BA), and a polymerizable UV stabilizer 2-hydroxy-4-(3-methacryloxy-2-hydroxylproroxy) benzophenone (BPMA) via emulsion polymerization, and the product was poly[methyl methacrylate-co-butyl acrylate-co-2-hydroxy-4-(3-methacryloxy-2- hydroxylproroxy) benzophenone] [poly(MMA-co-BA-co-BPMA)]. The composition and characteristics of poly (MMA-co-BA-co-BPMA) were determined by using Fourier transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance (~1H-NMR), and ultraviolet-visible absorption spectroscopy (UV-vis). Further, the obtained poly(MMA-co-BA-co-BPMA) was blended with polyoxymethylene (POM) to modify its photostabilization, as well as the mechanical properties of POM composite were tested before and after UV irradiation. The result showed that poly(MMA-co-BA-co-BPMA) can be dispersed well in the POM matrix, which could play a role of improving compatibility with and toughening for POM, and its light-stable functional groups could increase the UV resistance of POM composite. Mechanical properties of modified POM were kept well with higher impact strength and elongation at break than pure POM after UV irradiation.
机译：在这项研究中，由甲基丙烯酸甲酯（MMA），丙烯酸丁酯（BA）和可聚合的紫外线稳定剂2-羟基-4-（3-甲基丙烯酰氧基-2-羟基丙氧基）二苯甲酮（ BPMA）经乳液聚合，产物为聚[甲基丙烯酸甲酯-丙烯酸丁酯-丙烯酸-2-酯-2-羟基-4-（3-甲基丙烯酰氧基-2-羟基丙氧基）二苯甲酮] [聚（MMA-丙烯酸乙酯-丙烯酸共聚物） BPMA）]。聚（MMA-co-BA-co-BPMA）的组成和特性通过傅里叶变换红外光谱（FTIR），质子核磁共振（〜1H-NMR）和紫外可见吸收光谱（UV-vis）确定）。此外，将获得的聚（MMA-co-BA-co-BPMA）与聚甲醛（POM）混合以改变其光稳定性，并在紫外线照射之前和之后测试POM复合材料的机械性能。结果表明，聚（MMA-co-BA-co-BPMA）可以很好地分散在POM基体中，起到改善与POM的相容性和增韧作用，其光稳定的官能团可以增加UV POM复合材料的电阻。改性后的POM的机械性能与紫外线照射后的纯POM相比保持良好的机械性能，具有更高的冲击强度和断裂伸长率。

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