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

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)286-294
Number of pages9
JournalIndustrial Crops and Products
Volume108
DOIs
Publication statusPublished - Dec 1 2017

Fingerprint

esterification
dimethyl sulfoxide
plastics
mulberries
chlorides
cellulose
wood plastic composites
ionic liquids
benzoquinones
plastic film
tensile strength
films (materials)
lignin
oxidation
degradation

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science

Cite this

Highly translucent all wood plastics via heterogeneous esterification in ionic liquid/dimethyl sulfoxide. / Chen, Jianqiang; Tang, Chuanqi; Yue, Yiying; Qiao, Weichuan; Hong, Jianguo; Kitaoka, Takuya; Yang, Zhen.

In: Industrial Crops and Products, Vol. 108, 01.12.2017, p. 286-294.

Research output: Contribution to journalArticle

Chen, Jianqiang ; Tang, Chuanqi ; Yue, Yiying ; Qiao, Weichuan ; Hong, Jianguo ; Kitaoka, Takuya ; Yang, Zhen. / Highly translucent all wood plastics via heterogeneous esterification in ionic liquid/dimethyl sulfoxide. In: Industrial Crops and Products. 2017 ; Vol. 108. pp. 286-294.
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