Combination of lignin and L-lactide towards grafted copolymers from lignocellulosic butanol residue

Enmin Zong; Jinhua Jiang; Xiaohuan Liu; Shenyuan Fu; Yuzhi Xu; Fuxiang Chu

doi:10.1016/j.ijbiomac.2016.01.043

Combination of lignin and L-lactide towards grafted copolymers from lignocellulosic butanol residue

Int J Biol Macromol. 2016 May:86:80-8. doi: 10.1016/j.ijbiomac.2016.01.043. Epub 2016 Jan 14.

Authors

Enmin Zong¹, Jinhua Jiang², Xiaohuan Liu³, Shenyuan Fu⁴, Yuzhi Xu⁵, Fuxiang Chu⁵

Affiliations

¹ Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou 318000, PR China. Electronic address: zongenmin@163.com.
² Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou 318000, PR China.
³ School of Engineering, and National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, Zhejiang Agriculture and Forestry University, Hangzhou Lin'an 311300, PR China; Institute of Chemical Industry of Forestry Products, CAF, Nanjing 210037, PR China. Electronic address: liuxiaohuancaf@163.com.
⁴ School of Engineering, and National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, Zhejiang Agriculture and Forestry University, Hangzhou Lin'an 311300, PR China.
⁵ Institute of Chemical Industry of Forestry Products, CAF, Nanjing 210037, PR China.

PMID: 26776871
DOI: 10.1016/j.ijbiomac.2016.01.043

Abstract

A series of BBL-graft-poly (L-lactide) copolymers were synthesized via ring-opening polymerization (ROP) of L-lactide (L-LA) with a biobutanol lignin (BBL) initiator and a triazabicyclodecene (TBD) catalyst under free-solvent at 135 °C. By manipulating the mass ratio of BBL/LLA, BBL-g-PLLA copolymers with tunable number-average molecular weight (Mn) (2544-7033 g mol(-1)) were obtained. The chemical structure of PLLA chains was identifiable by FT-IR, (1)H NMR and (13)C NMR spectroscopies, in combination with UV-vis spectra to provide support for the existence of the BBL in the copolymer. This provided solid evidence for the successful synthesis of BBL-g-PLLA copolymer. The thermal properties and surface characterization of BBL-g-PLLA copolymers were different from those of linear PLLA. Furthermore, the BBL-g-PLLA copolymer film showed good absorption capacity in the UV region and high transparency in the visible light region, which was expected to find significant applications in UV-protective coating film.

Keywords: Graft copolymer; Lignocellulosic butanol residue; Ring-opening polymerization (ROP); UV absorption; l-Lactide.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Butanols / chemistry*
Dioxanes / chemistry*
Lignin / chemistry*
Polymerization
Surface Properties
Temperature

Substances

Butanols
Dioxanes
lignocellulose
Lignin
dilactide