Synthesis of hemicellulose hydrogels with tunable conductivity and swelling behavior through facile one-pot reaction

Jingyun Wen; Jiyou Yang; Wenyi Wang; Mingfei Li; Feng Peng; Jing Bian; Runcang Sun

doi:10.1016/j.ijbiomac.2019.11.035

Synthesis of hemicellulose hydrogels with tunable conductivity and swelling behavior through facile one-pot reaction

Int J Biol Macromol. 2020 Jul 1:154:1528-1536. doi: 10.1016/j.ijbiomac.2019.11.035. Epub 2019 Nov 23.

Authors

Jingyun Wen¹, Jiyou Yang¹, Wenyi Wang¹, Mingfei Li¹, Feng Peng¹, Jing Bian², Runcang Sun³

Affiliations

¹ Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
² Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China. Electronic address: bianjing31@bjfu.edu.cn.
³ Center for Lignocellulose Science and Engineering, and Liaoning Key Laboratory Pulp and Paper Engineering, Dalian Polytechnic University, Dalian 116034, China.

PMID: 31770561
DOI: 10.1016/j.ijbiomac.2019.11.035

Abstract

The conductive hemicellulose hydrogels (CHHs) were achieved by incorporating carboxyl terminated aniline pentamer (CTAP) into the hydrophilic xylan-rich hemicellulose networks with epichlorohydrin. CHHs were obtained by facile one-pot reaction in water at ambient temperature. The successful synthesis of CTAP was confirmed by FT-IR, ¹H NMR, and UV-vis spectra. All the hydrogels reached their equilibrium-swollen state within 12 h. The morphology and the thermal stability of CHHs were adjusted by the addition of CTAP. The conductivities of CHHs could also be tuned from 8.92 × 10^-5 to 2.11 × 10^-3 S/m by adding the blending amounts of the CTAP from 0 to 50% mass ratio while simultaneously altering the equilibrium swelling ratio from 28.1 to 15.8. CHHs showed homogeneous porous structure, tunable swelling behavior, controllable conductivity, and good thermal stability. These results highlight that CHHs are attractive candidates to be used in biomedical applications.

Keywords: Carboxyl terminated aniline pentamer; Hemicelluloses; Hydrogels; Tunable conductivity.

MeSH terms

Chemistry Techniques, Synthetic
Electric Conductivity*
Hydrogels / chemical synthesis*
Hydrogels / chemistry*
Polysaccharides / chemistry*
Temperature

Substances

Hydrogels
Polysaccharides
hemicellulose