合成纤维

2018, v.47;No.350(04) 1-7

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低熔点共聚酯序列结构分析
The Sequence Structure of the Low Melting Point Copolyester

邓丽娜;王彦芳;刘灯胜;李文刚;
DENG Li-na;WANG Yan-fang;LIU Deng-sheng;LI Wen-gang;College of Materials Science and Engineering, Donghua University;

摘要(Abstract):

采用PTA路线合成一系列低熔点共聚酯,在不改变其它条件的基础下,通过改变单体的配比,将所获得的聚合物的熔点控制在110℃左右。利用核磁共振对聚合物的序列结构进行表征,发现所制得的聚合物的无规度均接近1,表明所得共聚酯均接近无规共聚物。
A series of low melting point copolyesters were synthesized by PTA route. The melting point ofthe obtained polymer was controlled at about 110 ℃ by changing the monomer ratio without changing theother conditions. NMR was used to characterize the sequence structure of the polymers. It is found that theprepared polymers all have a randomness close to 1, that indicates the resulting copolyesters are close torandom copolymers.

关键词(KeyWords): 低熔点共聚酯;序列结构;核磁共振;无规度
low melting point copolyester;sequence structure;NMR;randomness

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作者(Author): 邓丽娜;王彦芳;刘灯胜;李文刚;
DENG Li-na;WANG Yan-fang;LIU Deng-sheng;LI Wen-gang;College of Materials Science and Engineering, Donghua University;

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