Construction of inter-chain polymers and the investigation intoFriedel-Craftsalkylation of styrene-acrylonitrile copolymers with chloroprene rubber and characterization

Wei Xuefeng; Zhang Pengcheng; Cui Shen; Che Wei; Zhao Jiruo; Feng Ying

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Construction of inter-chain polymers and the investigation intoFriedel-Craftsalkylation of styrene-acrylonitrile copolymers with chloroprene rubber and characterization

机译：氯丁橡胶和表征亚苯乙烯 - 丙烯腈共聚物的链锁间聚合物的构建及其研究Intofriedel-Craftsallation

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In this study, the Friedel-Crafts alkylation was realized in a solvent free processing of styrene-acrylonitrile copolymers/chloroprene rubber (SAN/CR) molten blending which contributes the formation of SAN-co-CR co-polymers and improved compatibility between SAN and CR. The properties of several Lewis acid compounds were tested as catalysts among which AlCl(3)was the most efficient. The effects of blending temperature and time on the co-polymer formation in situ were also investigated. The methodology of weighing and Fourier transform infrared analyses indicated that the reaction degree increases with increasing blending temperature and time in the ranges of this study. The micro-structures and reaction mechanisms of the resulted SAN-co-CR polymers and morphological structures of SAN/CR/AlCl(3)blends were characterized as well by differential scanning calorimetry, FT-IR spectra, GPC and scanning electron microscopy. The results showed that the inter-facial reactions between SAN and CR have been effectively improved. Moreover, the inter-chain structure of SAN-co-CR co-polymers was proposed which is different from general grafting or blocking co-polymers.

机译：在本研究中，在苯乙烯-丙烯腈共聚物/氯丁橡胶（SAN/CR）熔融共混的无溶剂过程中实现了弗里德尔-克拉夫茨烷基化，这有助于形成SAN-co-CR共聚合物并改善SAN和CR之间的相容性。测试了几种路易斯酸化合物作为催化剂的性能，其中AlCl（3）是最有效的。还研究了共混温度和时间对原位共聚合物形成的影响。称重法和傅里叶变换红外分析表明，在本研究范围内，反应程度随共混温度和时间的增加而增加。通过差示扫描量热法、FT-IR光谱、GPC和扫描电子显微镜对所得SAN-co-CR聚合物的微观结构和反应机理以及SAN/CR/AlCl（3）共混物的形态结构进行了表征。结果表明，SAN和CR之间的面部反应得到了有效改善。此外，还提出了SAN-co-CR共聚合物的链间结构，它不同于一般的接枝或封闭共聚合物。

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来源
《Journal of Applied Polymer Science》 |2021年第8期|共9页
作者
Wei Xuefeng; Zhang Pengcheng; Cui Shen; Che Wei; Zhao Jiruo; Feng Ying;
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作者单位

Qingdao Univ Sci &

Technol Minist Educ Shandong Prov Key Lab Rubber Plast Qingdao 266042 Peoples R China;

Qingdao Univ Sci &

Technol Minist Educ Shandong Prov Key Lab Rubber Plast Qingdao 266042 Peoples R China;

Qingdao Univ Sci &

Technol Minist Educ Shandong Prov Key Lab Rubber Plast Qingdao 266042 Peoples R China;

Qingdao Univ Sci &

Technol Minist Educ Shandong Prov Key Lab Rubber Plast Qingdao 266042 Peoples R China;

Qingdao Univ Sci &

Technol Minist Educ Shandong Prov Key Lab Rubber Plast Qingdao 266042 Peoples R China;

Qingdao Univ Sci &

Technol Minist Educ Shandong Prov Key Lab Rubber Plast Qingdao 266042 Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类高分子化合物工业（高聚物工业）;
关键词
conducting polymers; copolymers; functionalization of polymers; radical polymerization;

机译：导电聚合物;共聚物;聚合物的官能化;自由基聚合;

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Construction of inter-chain polymers and the investigation intoFriedel-Craftsalkylation of styrene-acrylonitrile copolymers with chloroprene rubber and characterization

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