| 环氧类扩链剂的合成及对回收PET的扩链效果 |
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| 引用本文： | 李斌,吕云伟,邹嘉佳,高学敏,莫敬源.环氧类扩链剂的合成及对回收PET的扩链效果[J].高分子材料科学与工程,2009(12). |
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| 作者姓名： | 李斌 吕云伟 邹嘉佳 高学敏 莫敬源 |
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| 作者单位： | 四川大学高分子科学与工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(50503014) |
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| 摘 要： | 采用悬浮聚合方法合成了环氧类扩链剂苯乙烯-EMC的共聚物SMC,并对其进行红外分析表征。SMC中含有活性环氧基团,可与回收PET链端的羧基反应,将其用于PET(聚对苯二甲酸乙二醇酯)的反应共混,能够大大提高回收PET的分子量,特性黏度从0.448 dL/g提高至0.57 dL/g,羧基含量减少至很低,扩链效果显著。DSC分析扩链后的PET其固有性能保持不变。这种共聚物可作为PET的扩链剂使用。
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| 关 键 词： | 回收聚对苯二甲酸乙二醇酯 环氧类扩链剂 扩链 |
Synthesis of Epoxy-Type Chain Extender and the Chain Extension Effect on the Recycled PET |
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| LI Bin,LV Yun-wei,ZOU Jia-jia,GAO Xue-min,MO Jin-yuan.Synthesis of Epoxy-Type Chain Extender and the Chain Extension Effect on the Recycled PET[J].Polymer Materials Science & Engineering,2009(12). |
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| Authors: | LI Bin LV Yun-wei ZOU Jia-jia GAO Xue-min MO Jin-yuan |
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| Affiliation: | LI Bin,LV Yun-wei,ZOU Jia-jia,GAO Xue-min,MO Jin-yuan (College of Polymer Science and Engineering,Sichuan University,Chengdu 610065,China) |
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| Abstract: | Styrene-EMC copolymer(SMC),epoxy-type chain extender,was synthesized by suspension polymerization.The epoxy groups in SMC are active that they can react with the carboxyls in recycled PET.As an extender,SMC can improve the molecular weight of recycled PET greatly.The intrinsic viscosity of combining product is increased from 0.448 dL/g to 0.57 dL/g,while the carboxyl end group content decreased to the lowest.Chain extension effect is significant.The inherent properties of the recycled PET remains unchanged ... |
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| Keywords: | recycled PET epoxy type chain extender chain extension |
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