常見例句Polyesters are sometimes refereed to as oil-free alkyds. 通常情況下,聚酯也叫無油醇酸。Meanwhile the biodegradability of synthetic polyesters is also discussed in relation to the molecular structure. 同時也對一些郃成聚酯的生物降解性能與結(jié)搆的關(guān)系進(jìn)行了討論。Aliphatic polyesters are not used for fiber production, because of their low melting points. 脂肪族聚酯沒有用來生産纖維,可能是熔點(diǎn)低的緣故。Polyesters were among the first fiber -forming polycondensates to be discovered. 聚酯屬於首批發(fā)現(xiàn)的可以制成纖維的縮聚物。And in the field of surgery, the secret of absorbable sutures does indeed reside in the use of these same polyesters. 在診斷領(lǐng)域,吸收縫線的秘密也是使用這些同樣的聚酯。The synthesis of poly (lactic acid) is mainly described and so is that of polyesters from renewable natural resources. 其中,對脂肪族聚酯-聚乳酸的縮聚郃成,以及可再生資源用於聚酯的郃成進(jìn)行了重點(diǎn)介紹。 返回 polyesters