化工进展2018，Vol.37Issue(4)：1381-1391,11.DOI:10.16085/j.issn.1000-6613.2017-1218
聚3-羟基丁酸酯降解技术研究进展
A review for poly(3-hydroxybutyrate) degradation technologys
摘要
Abstract
This paper reviewed the main technologies for PHB depolymerization,including pyrolysis, hydrolysis,solvent treatment,and enzymolysis. The effect of process parameters,product distribution, and reaction mechanism on PHB depolymerization were discussed. The main factors affecting the PHB thermal stability were summarized. The required temperatures for a routine reaction are in the following order of:pyrolysis>hydrolysis≥solvent treatment>enzymolysis. Crotonic acid and its oligomers are usually the main products of pyrolysis at mild temperatures. However,a high pyrolysis temperature (e.g.,>500℃)would lead to a high yield of CO2 and propylene. Both hydrolysis and solvent treatment are mainly used to obtain targeted chemicals(e.g.,3-hydroxybutyric acid,crotonic acid,methyl crotonate),by selectively opening the ester bond in PHB. Compared with the other three technologies, new technical breakthrough is needed for enzymolysis due to its multiple limitations and high cost. Two potential research areas were proposed for further work:①catalyzed reforming of PHB for high-quality oil production,and ②direct conversion of PHB rich-in microbial biomass for valuable chemicals.关键词
聚合物加工/聚3-羟基丁酸酯/降解/热解/水解/催化Key words
polymer processing/poly(3-hydroxybutyrate)/degradation/pyrolysis/hydrolysis/catalysis分类
化学化工引用本文复制引用
陈辉淦,郑育英,康世民,方岩雄,徐勇军..聚3-羟基丁酸酯降解技术研究进展[J].化工进展,2018,37(4):1381-1391,11.基金项目
国家自然科学基金(21606045)及广东省自然科学基金(2017A03031084)项目. （21606045）
