苯乙烯马来酸酐类及聚酯可降解材料的设计与合成
夏木西卡玛尔.买买提
学位类型博士
导师吾满江.艾力
2011-11-01
学位授予单位中国科学院研究生院
学位授予地点北京
学位专业有机化学
关键词可降解 苯乙烯-马来酸酐共聚物 聚丁二酸丁二醇酯 聚丁二酸己二酸丁二醇共聚酯 防老化助剂
摘要

鉴于目前生物可降解材料的研究热点及存在的不足,本文设计合成了可降解的苯乙烯-马来酸酐类聚合物(包括苯乙烯-马来酸酐共聚物、苯乙烯-蓖麻油马来酸单酯共聚物及苯乙烯-双环戊二烯马来酸单酯共聚物)及脂肪族聚酯(聚丁二酸丁二醇酯及聚丁二酸己二酸丁二醇共聚酯),并对合成可降解材料的环保型防老化助剂也进行了相应的探索。主要内容包括: (1) 分别以苯乙烯与马来酸酐、苯乙烯与蓖麻油马来酸单酯、苯乙烯与双环戊二烯马来酸单酯为聚合单体,在适宜的条件下合成得到可降解的苯乙烯-马来酸酐共聚物、苯乙烯-蓖麻油马来酸单酯共聚物及苯乙烯-双环戊二烯马来酸单酯共聚物。并对它们的整个合成工艺(包括蓖麻油马来酸单酯及双环戊二烯马来酸单酯)进行了优化。通过质谱、红外光谱、核磁共振氢谱及凝胶渗透色谱对它们的化学结构及分子量进行了表征。热重及生物可降解结果表明苯乙烯-马来酸酐类共聚物可以作为一种具有较高的热稳定性的可降解材料来使用。 (2) 为了进一步地研究具有更高降解程度的高分子材料,分别以丁二酸与1,4丁二醇、混合酸(丁二酸、己二酸)与1,4丁二醇为聚合单体,设计合成了聚丁二酸丁二醇酯和聚丁二酸己二酸丁二醇共聚酯两种可降解的聚酯材料。优化了各个聚酯材料的合成工艺条件,并使用红外光谱、核磁氢谱及凝胶渗透色谱对它们的化学结构和分子量进行了表征。热重及生物降解性实验结果表明这两种聚酯具有较高的热稳定性和生物可降解性。 (3) 为了能够推动可降解高分子材料的进一步发展,初步探索合成了三类环保型的高分子材料防老化助剂(聚异丁烯-酚、脂肪酸金属盐及复合型油酸钙、镁盐防老化剂)。其中,由于油酸中含有功能性双键,故而油酸盐类防老化剂能够参与高分子材料的自由基聚合反应,有潜力被使用作为一种环保的反应型防老化剂。

其他摘要

In view of the current research focus and shortcomings of the biodegradable materials, a series of biodegradable styrene-maleic anhydride copolymers (styrene-maleic anhydride copolymer, styrene-monoester of castor oil-maleic acid copolymer and styrene-monoester of dicyclopentadiene-maleic acid copolymer) and aliphatic polyesters (polyester of 1,4-butanediol-succinic acid and copolyester of 1,4-butanediol-succinic acid-hexanedioic acid) were synthesized. In addition, some environmentally friendly anti-aging additives of biodegradable materials were also explored to synthesize. The main contents of this paper were as follows: (1) The styrene-maleic anhydride copolymer, styrene-monoester of castor oil-maleic acid copolymer and styrene-monoester of dicyclopentadiene-maleic acid copolymer were synthesized under the optimized reaction conditions with styrene and maleic anhydride, styrene and monoester of castor oil-maleic acid, styrene and monoester of dicyclopentadiene-maleic acid as the main polymerization monomers, respectively. Their entire reaction conditions (including monoester of castor oil-maleic acid and monoester of dicyclopentadiene-maleic acid and their styrene-maleic anhydride copolymers) were all optimized, their chemical structures and molecular weights were characterized by MS, IR, 1H-NMR and GPC. The experiamental results of TG and biodegradability showed the styrene-maleic anhydride copolymers could be used as a biodegradable material with high thermal stability. (2) To study polymer materials with a higher biodegradability, the aliphatic polyesters: the polyester of 1,4-butanediol-succinic acid and the copolyester of 1,4-butanediol-succinic acid-hexanedioic acid were synthesized by using 1,4-butanediol, succinic acid and hexanedioic acid as the main materials, respectively. Their reaction conditions were optimized. Their chemical structures and molecular weights were characterized by IR, 1H-NMR and GPC. The experiamental results of TG and biodegradability showed they were used as polymer material with excellent thermal stability and high biodegradability. (3) In order to promote the development of biodegradable materials, three types of environmentally friendly anti-aging additives of biodegradable materials (polyisobutylene-phenol, fatty acid metal salt and complex calcium/magnesium oleate) were explored to synthesize. The oleate metal salt anti-aging additive can participate in the free radical polymerization of the polymer material due to its functional double bond, so it has the potential to be used as an environmentally friendly reactive anti-aging agent.

文献类型学位论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/4445
专题新疆维吾尔自治区精细化工工程技术研究中心
作者单位中国科学院新疆理化技术研究所
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夏木西卡玛尔.买买提. 苯乙烯马来酸酐类及聚酯可降解材料的设计与合成[D]. 北京. 中国科学院研究生院,2011.
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