CAJ | 학술논문

分别以乙二醇、三羟甲基丙烷和季戊四醇为起始剂，经ε-己内酯开环聚合制备了一系列聚己内酯多元醇。探讨了反应温度、时间和催化剂等因素对合成反应的影响，并采用红外光谱（ FT-IR）、羟值滴定、凝胶渗透色谱（ GPC）对聚己内酯多元醇进行了表征。结果表明，以无水乙酸锌为催化剂，且用量为己内酯单体摩尔分数的0?2％，在温度120℃条件下反应3～4 h，制备的多元醇为理想的聚己内酯多元醇，相对分子质量与设计值一致，而且具有相对分子质量分布窄、成本低的特点。
분별이을이순、삼간갑기병완화계무사순위기시제，경ε-기내지개배취합제비료일계렬취기내지다원순。탐토료반응온도、시간화최화제등인소대합성반응적영향，병채용홍외광보（ FT-IR）、간치적정、응효삼투색보（ GPC）대취기내지다원순진행료표정。결과표명，이무수을산자위최화제，차용량위기내지단체마이분수적0?2％，재온도120℃조건하반응3～4 h，제비적다원순위이상적취기내지다원순，상대분자질량여설계치일치，이차구유상대분자질량분포착、성본저적특점。
The polycaprolactone polyols were preparaed by ε-caprolactone ring-opening polymerization using ethylene glycol, trimethylolpropane, pentaerythritol as the initiators. The factors of reaction temperature, time and catalyst on synthesis reaction were studied and polycaprolactone polyols were characterized by IR, hydroxyl value ti-tration and GPC. The results showed that products were ideal polycaprolactone polyols which the anhydrous zinc ac-etate in an amount of 0?2% mole fraction of caprolactone monomer as catalyst, reaction temperature 120℃ and the reaction time 3~4 h. Relative molecular mass was consistent with the design value. The target products had a nar-row relatively molecular weight distribution and low cost.