| 影响聚丁二酸丁二醇酯合成因素及降解性能的研究 |
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| 引用本文： | 黄继涛,崔春娜.影响聚丁二酸丁二醇酯合成因素及降解性能的研究[J].宁德师专学报(自然科学版),2011,23(1):14-17. |
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| 作者姓名： | 黄继涛 崔春娜 |
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| 作者单位： | 宁德师范学院化学与环境科学系,福建宁德,352100 |
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| 基金项目： | 宁德师范学院校级科研项目 |
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| 摘 要： | 以丁二酸（SA）和1,4-丁二醇（BD）为原料,采用双催化剂,通过本体熔融缩聚反应,合成得到聚丁二酸丁二醇酯（PBS）.研究了催化剂的用量、助催化剂与主催化剂的摩尔比对相对分子量和反应时间的影响以及PBS在土壤培养液和堆肥培养液中的降解性能.通过GPC、1H-NMR对合成产物的相对分子质量、结构和热性质进行了研究.结果表明：采用双催化剂合成的PBS相对数均分子量较高,可达8万以上,分子量分布在2左右;催化剂用量0.115mmol,助催化剂与主催化剂的摩尔比为0.1时,反应条件为最佳;降解实验说明产物在堆肥中具有良好的降解性,在土壤培养液中具有降解性.
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| 关 键 词： | 双催化剂 高分子量 热稳定性 降解性能 |
Study on factors for synthesis of poly (butylenes succinate) and its biodegradability |
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| HUANG Ji-tao,CUI Chun-na.Study on factors for synthesis of poly (butylenes succinate) and its biodegradability[J].Journal of Ningde Teachers College(Natural Science),2011,23(1):14-17. |
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| Authors: | HUANG Ji-tao CUI Chun-na |
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| Institution: | (Department of Chemistry and Environment Science,Ningde Normal University,Ningde,Fujian 352100,China) |
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| Abstract: | Taking SA and BD as the raw stuff and using bi-catalyst,PBS was synthesized through body melting polycondensation.Researched the effect of catalyst amount,the molar ratio of co-catalyst and catalyst on the molecular weight and reaction time,the PBS was investigated by means of GPC and 1H-NMR.The result shows that the PBS synthesized by using bi-catalyst had a higher molecular weight of above 8×104 and the distribution is about 2.When the molar ratio of the co-catalyst and catalyst is 0.1,we can get the best reaction condition.the PBS film can be degraded in the soil supernatant,the biodegradation of PBS is best in compost domesticated. |
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| Keywords: | bi-catalyst higher molecular weight thermal stability degradation |
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