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首页> 外文期刊>Journal of Applied Polymer Science >Macroporous open cell polyester amphigel using citric acid andPEO: Solvent absorption, thermal behavior, and slow release of pesticide
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Macroporous open cell polyester amphigel using citric acid andPEO: Solvent absorption, thermal behavior, and slow release of pesticide

机译：含有柠檬酸和钙的大孔开放细胞聚酯Amphigel：溶剂吸收，热行为和农药缓慢释放

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摘要

This article describes citric acid cross-linked amphiphilic poly(ethylene oxide) (PEO) macroporous open cell polyester amphigel, optimally synthesized using response surface methodology by applying central composite design to screen significant reaction parameters for maximizing percent water sorption. The chemical structure of the amphigel was confirmed by proton nuclear magnetic resonance (H-1 NMR), FT-IR and the thermal behavior was studied using thermo-gravimetric and DSC. Due to amphiphilic nature, the amphigels also showed high chloroform (1151.33%-1193.33%) and water (755.33%-865%) absorption capacity. Thermal analysis revealed that amphigels are less thermal stability as compared to PEO, however, the degradation process was found to be multi step. The amphigel was effectively used as a carrier for easy loading of a hydrophobic pesticide and showed a slow release of the same.
机译：本文描述了柠檬酸交联两亲性聚环氧乙烷（PEO）大孔开孔聚酯两性凝胶，通过采用中心复合设计筛选重要反应参数，采用响应面法优化合成，以最大限度地提高吸水率。通过质子核磁共振（H-1 NMR）、傅立叶变换红外光谱（FT-IR）证实了两性凝胶的化学结构，并利用热重分析和DSC研究了其热行为。由于两亲性的性质，两亲物还表现出较高的氯仿（1151.33%-1193.33%）和水（755.33%-865%）吸收能力。热分析表明，与PEO相比，两性化合物的热稳定性较差，但降解过程是多步骤的。amphigel被有效地用作载体，以便于装载疏水性农药，并且表现出缓慢的释放。

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