| 聚对苯二甲酸丁二酯-聚四亚甲基醚多嵌段共聚物的研究 |
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| 引用本文： | 吴美琰,施曼丽,程友青,陈传福,喻身海.聚对苯二甲酸丁二酯-聚四亚甲基醚多嵌段共聚物的研究[J].高分子学报,1980,0(2):77-83. |
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| 作者姓名： | 吴美琰 施曼丽 程友青 陈传福 喻身海 |
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| 作者单位： | 中国科学院化学研究所，中国科学院化学研究所，中国科学院化学研究所，中国科学院化学研究所，中国科学院化学研究所 湖北襄樊市化工局 |
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| 摘 要： | 合成了硬段含量和软段分子量不同的聚对苯二甲酸丁二酯-聚四亚甲基醚(PBT-PTMG)多嵌段共聚物。研究了硬段含量和软段分子量对嵌段共聚合过程的影响。当软段分子量较大、硬段含量较高时,在嵌段共缩聚过程中有均聚物伴生。当软段分子量在2000左右,硬段含量在20％左右时,基本上不生成均聚物。硬段重量含量为 20％的低硬段 PBT-PTMG多嵌段共聚物是结晶的。由它纺成的弹体纤维有良好的力学性能和弹性回复。热处理能改进纤维的弹性回复。
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| 收稿时间： | 1979-01-26 |
THE STUDY ON POLY (TETRAMETHYLENE TEREPHTHATE)-POLY (TETRAMETHYLENE ETHER) MULTI-BLOCK COPOLYMER |
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| Wu Mei-yan,Shi Man-li,Cheng You-qing,Chen Chuan-fu,Yu Shen-hai.THE STUDY ON POLY (TETRAMETHYLENE TEREPHTHATE)-POLY (TETRAMETHYLENE ETHER) MULTI-BLOCK COPOLYMER[J].Acta Polymerica Sinica,1980,0(2):77-83. |
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| Authors: | Wu Mei-yan Shi Man-li Cheng You-qing Chen Chuan-fu Yu Shen-hai |
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| Affiliation: | Institute of Chemistry; Academia Sinica |
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| Abstract: | Poly (tetrarnethylene terephthalate)-poly (tetramethylene ether) block copolymers with various contents of hard segments and with soft segments of various molecular weights were prepared. It was shown, that contents of hard segments and molecular weights of soft segments affect the. block copolymerization reaction, especially, the formation of homopolymer. The short hard segments can crystallize even with only 2-4 formal units. The polyester-polyether multiblock copolymer with 20 wt% hard segments is melt-spun to give elastic fibers with good elastic recovery. |
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