| 乙二胺接枝聚乳酸亲水改性研究 |
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| 引用本文： | 尚建疆,吕新明,吕晓华,吴建宁,方振华,刘志勇.乙二胺接枝聚乳酸亲水改性研究[J].石河子大学学报,2009,27(6):755-759. |
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| 作者姓名： | 尚建疆 吕新明 吕晓华 吴建宁 方振华 刘志勇 |
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| 作者单位： | [1]石河子大学化学化工学院／新疆兵团化工绿色过程重点实验室,石河子832003 [2]阿拉山口出入境检验检疫局技术中心,阿拉山口833418 |
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| 摘 要： | 研究了乙二胺改性聚乳酸（EMPLA）的合成工艺及其亲水性能。以乳酸、马来酸酐和乙二胺为原料，合成了EMPLA，并对其工艺参数进行了优化；对聚乳酸（PLA）、马来酸酐改性聚乳酸（MPLA）、EMPLA进行了性能测试和结构表征，测定了吸湿率以研究其亲水性能力。优化的反应工艺为：在10℃反应2h、乙二胺过量20％时产率及产物纯度最高。通过酸酐间接引入亲水性的活性伯胺基团，EMPLA的平衡吸湿率比聚乳酸提高了31％。
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| 关 键 词： | 聚乳酸 亲水改性 乙二胺 丙交酯 马来酸酐 |
A Study on Hydrophilic Modification of Ethylenediamine Grafted Poly(Lactic Acid) |
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| SHANG Jianjiang,LU Xinming,LU Xiaohua,WU Jianming,FANG Zhenhua,LIU Zhiyong.A Study on Hydrophilic Modification of Ethylenediamine Grafted Poly(Lactic Acid)[J].Journal of Shihezi University(Natural Science),2009,27(6):755-759. |
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| Authors: | SHANG Jianjiang LU Xinming LU Xiaohua WU Jianming FANG Zhenhua LIU Zhiyong |
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| Institution: | SHANG Jianjiang, LU Xinming, LU Xiaohua, WU Jianmmg , FANG Zhenhua , LIU Zhiyong( 1 College of Chemistry and Chemical Engineering/Lab of Green Processing of Chemical Engineering of Xinjiang Production and Construction Corps, Shihezi University, Shihezi 832003, China; 2 Technique Center of Alashankou Entry-Exit Inspection and Quarantine Bureau, Alashankou 833418, China) |
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| Abstract: | The synthesis process of ethylenediamine modified poly （lactic acid） （EMPLA） and its hydrophilic properties were studied. EMPLA was synthesized by using lactic acid, maleic anhydride and ethylenediamine as raw materials, and process parameters was optimized. The performance and structure of Poly （ lactic Acid） （ PLA）, maleic anhydride graft PLA （MPLA） and EMPLA were tested and characterized. The hydrophilic properties was tested through the moisture absorption rate. the optimal reaction condition was at 20% of excessive ethylenediamine,at 10℃ for 120 min. By introducing anhydride and active hydrophilic amino group indirectly, the equilibrium moisture of EMPLA increased 32 % compared with pure PLA. |
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| Keywords: | poly（ lactic acid） hydrophilic modification ethylenediamine lactide maleic anhydride |
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