Microcrystalline cellulose grafted hyperbranched polyester with roll comb structure for synergistic toughening and strengthening of microbial PHBV/bio-based polyester elastomer composites

Xiaolong Han; Yi Han; Yujuan Jin; Zhao Wang; Huafeng Tian; Jiawei Huang; Maolin Guo; Shuang Men; Haibo Lei; Rakesh Kumar; Jing Hu

doi:10.1016/j.ijbiomac.2023.124608

Microcrystalline cellulose grafted hyperbranched polyester with roll comb structure for synergistic toughening and strengthening of microbial PHBV/bio-based polyester elastomer composites

Int J Biol Macromol. 2023 Jul 1;242(Pt 1):124608. doi: 10.1016/j.ijbiomac.2023.124608. Epub 2023 Apr 26.

Authors

Xiaolong Han¹, Yi Han², Yujuan Jin³, Zhao Wang², Huafeng Tian⁴, Jiawei Huang¹, Maolin Guo¹, Shuang Men⁵, Haibo Lei⁶, Rakesh Kumar⁷, Jing Hu⁸

Affiliations

¹ School of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, PR China; Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, PR China.
² State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 15 North Third Ring Road, Beijing 100029, PR China; Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, 15 North Third Ring Road, Beijing 100029, PR China.
³ School of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, PR China; Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, PR China. Electronic address: jinyujuan@th.btbu.edu.cn.
⁴ School of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, PR China; Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, PR China. Electronic address: tianhuafeng@th.btbu.edu.cn.
⁵ Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, PR China; Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing 100048, PR China.
⁶ College of Basic Science, Tianjin Agricultural University, Tianjin 300392, China.
⁷ Department of Biotechnology, Central University of South Bihar, Gaya 824236, India.
⁸ School of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, PR China; Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, PR China. Electronic address: hujing@th.btbu.edu.cn.

PMID: 37116850
DOI: 10.1016/j.ijbiomac.2023.124608

Abstract

The brittle feature of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) is the major challenge that strongly restricts its application at present. Successfully synthesized bio-based engineering polyester elastomers (BEPE) were combined with PHBV to create entirely bio-composites with the intention of toughening PHBV. Herein, the 2,2-Bis(hydroxymethyl)-propionic acid (DMPA) was grafted onto microcrystalline cellulose (MCC) and then further transformed into hyperbranched polyester structure via polycondensation. The modified MCC, named MCHBP, had plenty of terminal hydroxyl groups, which get dispersed between PHBV and BEPE. Besides, a large number of terminal hydroxyl groups of MCHBP can interact with the carbonyl groups of PHBV or BEPE in a wide range of hydrogen bonds, and subsequently increase the adhesion and stress transfer between the PHBV and BEPE. The tensile toughness and the elongation at break of the PHBV/BEPE composites with 0.5phr MCHBP were improved by 559.7 % and 221.8 % in comparison to those of PHBV/BEPE composites. Results also showed that MCHBP can play a heterogeneous nucleation effect on the crystallization of PHBV. Therefore, this research can address the current issue of biopolymers' weak mechanical qualities and may have uses in food packaging.

Keywords: Bio-based engineering polyester elastomer; Microcrystalline cellulose; PHBV; Toughen.

MeSH terms

Biopolymers
Elastomers*
Materials Testing
Polyesters* / chemistry

Substances

microcrystalline cellulose
Elastomers
Polyesters
Biopolymers