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Synthesis of functionalized copolymers and their compatibilization effects on acrylonitrile butadiene styrene/poly(butylene terephthalate) blends
Polymer Engineering and Science ( IF 3.2 ) Pub Date : 2020-09-14 , DOI: 10.1002/pen.25526 Kunquan Li 1 , Wenjian Wu 1 , Shengyong Chai 2 , Lei Tang 2 , Jide Li 2 , Yan Li 2 , Qin Liu 2 , Lin Chen 2
Polymer Engineering and Science ( IF 3.2 ) Pub Date : 2020-09-14 , DOI: 10.1002/pen.25526 Kunquan Li 1 , Wenjian Wu 1 , Shengyong Chai 2 , Lei Tang 2 , Jide Li 2 , Yan Li 2 , Qin Liu 2 , Lin Chen 2
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In this study, the copolymers of methyl methacrylate‐co‐glycidyl methacrylate (MGD) with different epoxy contents and molecular weights, the styrene‐co‐glycidyl methacrylate (SGD) and methyl methacrylate‐co‐maleic anhydride (MAD) were synthesized. The synthesized copolymers, styrene‐co‐maleic anhydride (SMA) and styrene‐acrylonitrile‐co‐glycidyl methacrylate (SAG) were used as compatibilizers to enhance the impact strength of the acrylonitrile butadiene styrene/poly(butylene terephthalate) (ABS/PBT). The effects of differences in the structure, reactive group type, and molecular weight of the compatibilizers on the mechanical properties, phase morphology, melt viscosity, thermal stability, and melting temperature of the blend were studied. The results showed that functionalized copolymers were successfully synthesized with high monomer conversions. Addition of the functionalized copolymers increased melt viscosity but did not considerably affect thermal stability, tensile strength, flexural strength and melting temperature of the ABS/PBT blends. The compatibilizers improved the dispersion of the PBT phase and prevented brittle fracture, thereby increasing the impact strength of the blend. Among the studied compositions, the ABS/PBT/MGD‐5 blend exhibited the highest impact strength of 25.8 kJ/m2 and an appropriate melt flow index of 19.1 g/10 minutes. The compatibilizer should have an appropriate molecular weight to improve the interface bonding force. Regarding the melting viscosity, the reactive group content and compatibilizer dosage should be adjusted to ensure high impact strength.
中文翻译：
功能化共聚物的合成及其对丙烯腈丁二烯苯乙烯/聚对苯二甲酸丁二醇酯共混物的增容作用
在这项研究中，合成了具有不同环氧含量和分子量的甲基丙烯酸甲酯-甲基丙烯酸缩水甘油酯共聚物（MGD），甲基丙烯酸苯乙烯-甲基丙烯酸缩水甘油酯共聚物和甲基丙烯酸甲酯-顺丁烯二酸酐共聚物（MAD）。合成的共聚物，苯乙烯-马来酸酐（SMA）和苯乙烯-丙烯腈-甲基丙烯酸缩水甘油酯（SAG）用作增容剂，以提高丙烯腈-丁二烯-苯乙烯/聚对苯二甲酸丁二酯（ABS / PBT）的冲击强度。研究了相容剂的结构，反应性基团类型和分子量的差异对共混物力学性能，相形态，熔体粘度，热稳定性和熔融温度的影响。结果表明，以高单体转化率成功合成了官能化共聚物。官能化共聚物的添加增加了熔体粘度，但是没有显着影响ABS / PBT共混物的热稳定性，拉伸强度，挠曲强度和熔融温度。相容剂改善了PBT相的分散性并防止了脆性断裂，从而提高了共混物的冲击强度。在研究的成分中，ABS / PBT / MGD-5混合物的最高冲击强度为25.8 kJ / m2和合适的熔体流动指数为19.1g / 10分钟。相容剂应具有合适的分子量以改善界面结合力。关于熔融粘度，应调整反应性基团含量和相容剂的用量以确保高冲击强度。
更新日期：2020-09-14
中文翻译：
功能化共聚物的合成及其对丙烯腈丁二烯苯乙烯/聚对苯二甲酸丁二醇酯共混物的增容作用
在这项研究中，合成了具有不同环氧含量和分子量的甲基丙烯酸甲酯-甲基丙烯酸缩水甘油酯共聚物（MGD），甲基丙烯酸苯乙烯-甲基丙烯酸缩水甘油酯共聚物和甲基丙烯酸甲酯-顺丁烯二酸酐共聚物（MAD）。合成的共聚物，苯乙烯-马来酸酐（SMA）和苯乙烯-丙烯腈-甲基丙烯酸缩水甘油酯（SAG）用作增容剂，以提高丙烯腈-丁二烯-苯乙烯/聚对苯二甲酸丁二酯（ABS / PBT）的冲击强度。研究了相容剂的结构，反应性基团类型和分子量的差异对共混物力学性能，相形态，熔体粘度，热稳定性和熔融温度的影响。结果表明，以高单体转化率成功合成了官能化共聚物。官能化共聚物的添加增加了熔体粘度，但是没有显着影响ABS / PBT共混物的热稳定性，拉伸强度，挠曲强度和熔融温度。相容剂改善了PBT相的分散性并防止了脆性断裂，从而提高了共混物的冲击强度。在研究的成分中，ABS / PBT / MGD-5混合物的最高冲击强度为25.8 kJ / m2和合适的熔体流动指数为19.1g / 10分钟。相容剂应具有合适的分子量以改善界面结合力。关于熔融粘度，应调整反应性基团含量和相容剂的用量以确保高冲击强度。
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