| 聚醚酰胺嵌段共聚物的合成及表征 |
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| 引用本文： | 王国建,薛冰. 聚醚酰胺嵌段共聚物的合成及表征[J]. 工程塑料应用, 2009, 37(6) |
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| 作者姓名： | 王国建 薛冰 |
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| 作者单位： | 先进土木工程材料教育部重点实验室,上海,200092;同济大学材料科学与工程学院,上海,200092;同济大学材料科学与工程学院,上海,200092 |
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| 摘 要： | 采用熔融缩聚法合成了聚酰胺(PA)6/聚四氢呋喃(PTEMG)嵌段共聚物,研究了PA6、PTEMG链段的相对分子质量、含量对嵌段共聚物热性能的影响,通过傅立叶变换红外光谱、核磁共振、差示扫描量热、热重测试等对产物进行分析.结果表明,嵌段共聚物以羧基封端,当PA6、PTEMG链段相对分子质量分别为2 000、1 000时,共聚物的分子序列长度最长,相对分子质量最大;PTEMG链段相对分子质量越小,共聚物的熔点越低;PTEMG链段相对分子质量相同时,随PA6链段相对分子质量的增加,熔点升高;嵌段共聚物中PA6组分的熔融温度范围随着PTEMG含量的增加而逐步变宽;共聚物具有较高的热分解活化能.
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| 关 键 词： | 聚己内酰胺 聚四氢呋喃 嵌段共聚物 |
SYNTHESIS AND CHARACTERIZATION OF POLY(ETHER-BLOCK-AMIDE) |
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| Wang Guojian,Xue Bing. SYNTHESIS AND CHARACTERIZATION OF POLY(ETHER-BLOCK-AMIDE)[J]. Engineering Plastics Application, 2009, 37(6) |
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| Authors: | Wang Guojian Xue Bing |
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| Affiliation: | 1.Key Laboratory of Advanced Civil Engineering Materials;Ministry of Education;Shanghai 200092;China;2.School of Materials Science and Engineering;Tongji University;China |
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| Abstract: | A series of PA/PTEMG block copolymers with different molecular weights and contents of hard segments and soft segments were synthesized by means of melt polycondensation.The influence of molecular weights,contents and relative proportion of hard segments and soft segments on the thermal properties of block copolymer was researched,and these block copolymers were characterized by means of FTIR,1HNMR,DSC and TGA.The research results indicated that the two chain ends of block copolymers were blocked out with c... |
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| Keywords: | polycaprolactam polytetramethylene ether glycol block copolymer |
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