Li Qiaoguang, Shu Xugang, Jia Puyou, Zhou Yonghong
School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry (CAF), 16 Suojin North Road, Nanjing 210042, China.
Polymers (Basel). 2020 Apr 15;12(4):913. doi: 10.3390/polym12040913.
The aim of this study was to develop a facile one-pot reaction for the synthesis of biomass-based hyperbranched poly(ether)s end-capped as acetate esters (BHE) for use as a sustainable, safe and feasible plasticizer for flexible poly(vinyl chloride) (PVC) materials. BHE is completely miscible with PVC but shows weaker plasticizing effect than dioctyl phthalate (DOP) (EΔ value of BHE reaches 64.8%). PVC plasticized with BHE displays greater thermal stability than that of PVC or PVC plasticized with DOP materials. BHE improves the thermal stability and flexibility of PVC materials. As a plasticizer, BHE displays lower solvent extractability and greater volatilization resistance than DOP. Acute oral toxicity indicates that BHE has toxic doses of 5 g/kg, suggesting that BHE is non-toxic.
本研究的目的是开发一种简便的一锅法反应，用于合成以醋酸酯封端的生物质基超支化聚醚（BHE），用作柔性聚氯乙烯（PVC）材料的可持续、安全且可行的增塑剂。BHE与PVC完全互溶，但塑化效果比邻苯二甲酸二辛酯（DOP）弱（BHE的EΔ值达到64.8%）。用BHE增塑的PVC比PVC或用DOP材料增塑的PVC具有更高的热稳定性。BHE提高了PVC材料的热稳定性和柔韧性。作为增塑剂，BHE比DOP表现出更低的溶剂萃取性和更高的耐挥发性。急性口服毒性表明BHE的毒性剂量为5 g/kg，这表明BHE无毒。
