化工新型材料

化工新型材料 ›› 2022, Vol. 50 ›› Issue (4) : 283-286. DOI: 10.19817/j.cnki.issn1006-3536.2022.04.057

开发与应用

可降解含氮聚酯的合成与性能

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Synthesis and property of degradable nitrogen-containing polyester

Xiong Jing¹, Cheng Zhengzai^1,2, Chen Jun¹, Wandji Djouonkep Lesly Dasilva¹, Seigu William Mawuko¹, Sun Xin¹, Jia Ruyan¹, Yuan Beibei¹, Mario Gauthier¹

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Received		Published
2020-12-10		2022-04-20
Issue Date	Revised Date
2022-04-29	2020-12-10

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摘要

以N-(羧甲基)甘氨酸和对苯二酚二(2-羟乙基)醚为主要原料,三氧化二锑为催化剂,采用熔融聚合法,合成聚[N-(羧甲基)甘氨酸-对苯二酚二(2-羟乙基)醚]酯(P₁)。采用FT-IR、¹H-NMR对聚酯P₁结构进行了表征;采用GPC、DSC、TGA测试其分子量和热性能;并采用自然掩埋法,对其在土壤中的降解性能进行了研究。GPC测试结果表明,该聚酯具有较高的分子量,M_n为41500g/mol。TG结果显示,该聚酯有良好的热稳定性,起始热分解温度高于333℃。在自然土壤环境下,聚酯P₁经过两年的降解,分子量下降20%,降解性能好,具有良好发展前景。

Abstract

Poly (n-(carboxymethyl) glycine hydroquinone di (2-hydroxyethyl) ether) ester was synthesized by melt polymerization with N-(carboxymethyl) glycine and hydroquinone di (2-hydroxyethyl) ether as main raw materials and antimony trioxide as catalyst.The structure of polyester P₁ was characterized by FT-IR and ¹H-NMR,and tested its molecular weight and thermal properties by GPC,DSC and TGA.The degradation performance of P₁ in soil was studied by natural burial method.The results of GPC shown that the polyester with high molecular weight Mn of 41500g/mol was synthesized.TG results shown that the polyester had good thermal stability and decomposition temperature of 5% mass loss can reach 333℃.In the natural soil environment,the molecular weight of polyester P₁ decreased by 20% after 2 years of degration,with good degradation performance,the novel polyester as the title shows will have a good development prospect.

关键词

含氮聚酯N-(羧甲基)甘氨酸 / 可降解 / 熔融聚合

Key words

nitrogen containing polyester / N-(carboxymethyl) glycine / biodegradability / melt polymerization

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可降解含氮聚酯的合成与性能[J]. 化工新型材料, 2022, 50(4): 283-286 DOI:10.19817/j.cnki.issn1006-3536.2022.04.057

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