process of direct esterification
process of direct esterification
直接酯化过程
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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A saturated hydroxy polyester resin has been prepared with polycarboxylic acid and polyol at the presence of catalyst and chain transfer agent by the direct melt esterification process.
在催化剂、链支化剂存在下多元酸和多元醇直接熔融酯化、常压缩聚合成饱和羟基聚酯。
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