Highly translucent all wood plastics via heterogeneous esterification in ionic liquid/dimethyl sulfoxide

Jianqiang Chen, Chuanqi Tang, Yiying Yue, Weichuan Qiao, Jianguo Hong, Takuya Kitaoka, Zhen Yang

研究成果: Contribution to journalArticle査読

10 被引用数 (Scopus)

抄録

Wood-based plastics obtained via chemical modifications are usually dark and opaque, which limits their potential applications. All-wood plastics (AWPs) derived from ball-milled mulberry wood (BMMW) via an efficient heterogeneous esterification for 2 h in dimethyl sulfoxide (DMSO)/1-butyl-3-methylimidazolium chloride (BMIMCl) with the molar ratios of DMSO to BMIMCl at 5.9:1 exhibit a highly translucent appearance. With desirable thermoplasticity and tensile strength, AWPs can be processed into light-permeable specimens and transparent film. FT-IR and solid-state 13C NMR spectra provide evidence for successful substitution of hydroxyl groups of BMMW by carboxybenzoyl groups. The darkness of AWPs arising from the oxidation of phenolic lignin into benzoquinone indicates that reaction time plays a critical role for controlling the transparency of AWPs. AWPs represent composite structures, including cellulose I and cellulose II. Different degradation mechanisms are observed among AWPs differently esterified. Moreover, the SEM and AFM images demonstrate the self-reinforcement of AWPs specimens and the heterogeneous surface of a transparent AWP film, respectively.

本文言語英語
ページ(範囲)286-294
ページ数9
ジャーナルIndustrial Crops and Products
108
DOI
出版ステータス出版済み - 12 1 2017

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science

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