Polymers | 卷:12 |
Sustainable Aromatic Aliphatic Polyesters and Polyurethanes Prepared from Vanillin-Derived Diols via Green Catalysis | |
Qin Chen1  Tianhua Ren1  Haibo Xie2  IanD. V. Ingram2  Changbo Zhao2  Caijuan Huang3  Xiankui Zeng3  | |
[1] Metallurgy, Guizhou University, West Campus, Huaxi District, Guiyang 550025, China; | |
[2] Department of Polymer Materials & | |
[3] Engineering, College of Materials & | |
关键词: lignin; vanillin; green catalysis; full bio-based polyesters; polyurethane; | |
DOI : 10.3390/polym12030586 | |
来源: DOAJ |
【 摘 要 】
The design and preparation of polymers by using biobased chemicals is regarded as an important strategy towards a sustainable polymer chemistry. Herein, two aromatic diols, 4-(hydroxymethyl)-2-methoxyphenol and 2-(4-(hydroxymethyl)-2-methoxyphenoxy)ethanol, have been prepared in good yields through the direct reduction of vanillin and hydroxyethylated vanillin (4-(2-hydroxyethoxy)-3-methoxybenzaldehyde) using NaBH4, respectively. The diols were submitted to traditional polycondensation and polyaddition with acyl chlorides and diisocyanatos, and serials of new polyesters and polyurethanes were prepared in high yields with moderate molecular weight ranging from 17,000 to 40,000 g mol−1. Their structures were characterized by 1H NMR, 13C NMR and FTIR, and their thermal properties were studied by TGA and differential scanning calorimetry (DSC), indicating that the as-prepared polyesters and polyurethanes have Tg in the range of 16.2 to 81.2 °C and 11.6 to 80.4 °C, respectively.
【 授权许可】
Unknown