| 淀粉改性PET-PEG的制备、表征及性质研究 |
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| 引用本文： | 吴爽,任珈明,王鑫,臧树良. 淀粉改性PET-PEG的制备、表征及性质研究[J]. 辽宁石油化工大学学报, 2014, 0(6): 1-4,10 |
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| 作者姓名： | 吴爽 任珈明 王鑫 臧树良 |
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| 作者单位： | 1. 辽宁石油化工大学化学化工与环境学部,辽宁抚顺,113001
2. 中国石油化工股份有限公司抚顺石油化工研究院,辽宁抚顺,113001 |
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| 基金项目： | 国家科技支撑计划项目(2012BAF03B00)。 |
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| 摘 要： | 使用淀粉改性对苯二甲酸乙二醇酯-聚乙二醇共聚物（PET-PEG），以六亚甲基二异氰酸酯为偶联剂，制备了一系列含淀粉的PET-PEG共聚物（PET-PEG/ST），并对其进行了结构表征和性质分析。实验结果表明，淀粉与PET-PEG发生了偶联反应，随着淀粉质量分数的增加，共聚物的热稳定性有所降低。PET-PEG/ST 具有良好的生物降解性，能在淀粉酶作用下快速降解，在不同 pH 条件下的降解速率由大到小的顺序为：碱性、酸性、中性。
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| 关 键 词： | 淀粉 改性 生物降解 偶合反应 |
Synthesis,Characterization and Properties of Starch-Modified PET-PEG |
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| Wu Shuang,Ren Jiaming,Wang Xin,Zang Shuliang. Synthesis,Characterization and Properties of Starch-Modified PET-PEG[J]. Journal of Liaoning University of Petroleum & Chemical Technology, 2014, 0(6): 1-4,10 |
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| Authors: | Wu Shuang Ren Jiaming Wang Xin Zang Shuliang |
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| Affiliation: | Wu Shuang;Ren Jiaming;Wang Xin;Zang Shuliang;College of Chemistry,Chemical Engineering and Environmental Engineering,Liaoning Shihua University;Sinopec Fushun Research Institute of Petroleum and Petrochemicals; |
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| Abstract: | Starch was reacted with polyethylene terephthalate-polyethylene glycol(PET-PEG)copolymer using hexamethylenediisocyanate as a coupling agent in order to prepare new PET-PEG/ST copolymers.The obtained PET-PEG/ST was characterized by FTIR and 1H-NMR spectroscopy,thermal analysis,and the water absorption and biodegradable tests.The results show that starch was attached to PET-PEG via couple reaction in the presence of hexamethylenediisocyanate.As compared to PET-PEG,PET-PEG/ST has avariable thermal stability with decreasing melting temperature.PET-PEG/ST has degraded in aqueous solution with different pH under different levels,and the degradation rate of PET-PEG/ST in aqueous solution under different pH values from big to small order as follows:alkaline solution,acidic solution,neutral solution.PETPEG/ST also tends to degrade in biologically active environments like amylase. |
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| Keywords: | Starch PET-PEG Modification Biodegradation Coupling reaction |
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