@article{LI2026, 
author = {Jiao LI and YongLai LU and Zhao WANG and LiQun ZHANG},
title = {Synthesis process optimization and performance of a glycerol-based biodegradable polyester elastomer},
year = {2026},
journal = {Journal of Beijing University of Chemical Technology (Natural Science Edition)},
volume = {53},
number = {1},
pages = {61-69},
keywords = {bio-based polyester elastomers, glycerol, ester groups, biodegradable},
url = {https://www.sciopen.com/article/10.13543/j.bhxbzr.2026.01.006},
doi = {10.13543/j.bhxbzr.2026.01.006},
abstract = {To address environmental concerns caused by traditional fossil-based elastomers, the development of bio-based biodegradable polyester elastomers has become a focus of current research. In this study, glycerol-based polyester elastomers with controllable crosslinking networks were synthesized via optimized melt polycondensation using bio-based diacids, diols, and glycerol. By controlling the degree of esterification between dicarboxylic acids and diols when introducing glycerol, an enhancement in the elasticity of polyester cross-linked elastomers was achieved (with a gel content of approximately 31% and a sol molecular weight ranging from 2.84 to 7.76 kg/mol). Differential scanning calorimetry (DSC) confirmed the completely amorphous nature of the elastomers, with glass transition temperatures (Tg) ranging from -49 to -47 ℃. In scaled-up 5 L reactor experiments, high-elasticity material was successfully prepared (gel content: 33.53%, sol molecular weight: 7.25 kg/mol) by optimizing the process parameters. This work not only provides a new route for developing environmentally friendly chewing gum but also establishes valuable insights for future engineering applications of bio-based elastomers.}
}