合成脂肪族聚酯二醇的合成及二羧酸经缩合聚合，和已知的完全生物降解土壤和水。
Synthetic aliphatic polyesters are synthesised from diols and dicarboxylic acids via condensation polymerisation, and are known to be completely biodegradable in soil and water.
本系列产品是以乙二醇为起始剂与环氧乙烷聚合制得的化合物。
This series products are compounds polymerized from ethylene oxide as initiating agent and EO.
对加氢所得的1，4-丁二醇粗产品进行了连续精馏和PBT聚合试验，表明试验所得的1，4-丁二醇产品达到了聚合级要求。
The raw product from hydrogenation is continuously rectified. 1,4-Butanediol from continuous rectification is subject to PBT polymerization test, and is found to be up to the polymerization grade.
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