Efficient synthesis of hydroxyl functioned polyesters from natural polyols and sebacic acid

Amphiphilic 氢氧根工作了聚酯(HFP ) 能为淀粉和树脂的混合被用作 compatibilizers。我们为 HFP 的有效准备开发了一个合成方法。水被高流动率 N2 而非高真空面对 dehydrative 冷凝作用催化剂与木糖醇，山梨糖醇，或甘露糖醇在癸二酸酸的 polycondensation 期间移开，产品与[] 27.2 mL/g， 1903 的 Mn， 167,693 的 Mw， 30.5 的 Tg ? 牵橹湡捩湩吗？

Amphiphilic hydroxyl functioned polyester（HFP） can be used as compatibilizers for blends of starch and resins.We developed a synthetic method for effective preparation of HFPs.Water was removed by high flow rate N_2 rather than high vacuum during polycondensation of sebacic acid with xylitol,sorbitol,or mannitol in the presence of dehydrative condensation catalyst and the product is with[η]of 27.2 mL/g,M_n of 1903,M_w of 167,693,T_g of -30.5℃,T_m of 44.0℃.Weight loss is 1.73%under 200℃. The integral distributions of molecular weight are 43.6 wt%and 63.8 wt%over 10,000 and 3000,respectively.The results indicated that higher molecular weight HFP was economically synthesized.