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首页> 外文期刊>ACS Sustainable Chemistry & Engineering >Synthesis of Crystalline and Amphiphilic Polymers from D-Glucaric Acid
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Synthesis of Crystalline and Amphiphilic Polymers from D-Glucaric Acid

机译：由D-葡糖二酸合成结晶和两亲聚合物

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摘要

D-Glucaric acid (GA), an aldaric acid isolated from various vegetables and fruits, is an important biobased building block. Glucaric acid acetate (GAA), which is acyclic, was synthesized in an acetic anhydride/sulfuric acid mixture. GAA was converted to glucaric acid chloride acetate (GACA) and then polymerized with various diols and diamines in dimethylacetamide solution or by interfacial polymerization in water and chloroform solutions. The polyesters and polyamides were amphiphilic and soluble in water and common organic solvents. The weight-average molecular weights of the polyesters were (0.4-0.7) x 103; those of the polyamides obtained by solution and interfacial polymerizations were (5.9- 8.0) x 103 and (14.5-20.8) x 103, respectively. Differential scanning calorimetry showed that the polyamides were thermoplastic and melted at ca. 140 °C, indicating crystallinity; the melting points increased with increasing number of diamine alkyl carbons. Novel biobased crystalline amphiphilic polymers were synthesized from GA.
机译：D-葡糖二酸（GA）是从各种蔬菜和水果中分离出来的一种醛酸，是重要的生物基构件。在乙酸酐/硫酸混合物中合成了无环乙酸葡萄糖醛酸酯（GAA）。将GAA转化为乙酸二氯乙酸（GACA），然后在二甲基乙酰胺溶液中或在水和氯仿溶液中通过界面聚合与各种二醇和二胺聚合。聚酯和聚酰胺是两亲性的，可溶于水和常见的有机溶剂。聚酯的重均分子量为（0.4-0.7）×103;和。通过溶液和界面聚合获得的聚酰胺的那些分别为（5.9-8.0）×103和（14.5-20.8）×103。差示扫描量热法显示聚酰胺是热塑性的，并且在约200℃下熔融。 140°C，表明结晶。熔点随二胺烷基碳数目的增加而增加。从GA合成了新型的生物基结晶两亲聚合物。

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