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Licensed Unlicensed Requires Authentication Published by De Gruyter December 25, 2018

In situ polymerization of 2-hydroxyethyl methacrylate (HEMA) and 3-(methacryloxy)propyltrimethoxysilane (MAPTES) in poplar cell wall to enhance its dimensional stability

  • Yaoge Huang , Gaiyun Li EMAIL logo and Fuxiang Chu
From the journal Holzforschung

Abstract

Poplar wood samples (2×2×2 cm3) were vacuum/pressure impregnated in alcoholic solution with 2-hydroxyethyl methacrylate (HEMA) and 3-(methacryloxy)propyltrimethoxysilane (MAPTES) in a mass ratio of 3/1 in the presence of catalytic amounts of azobisisobutyronitrile (AIBN). Because of their good solubility and permeability, the HEMA/MAPTES precursors evenly penetrate the poplar cell wall. The impregnated samples were heated at 75°C for 8 h, followed by a heating period at 103±2°C for 8 h, in the course of which an in situ polymerization occurred in the cell wall. The modified wood was characterized by Fourier transform infrared (FTIR) and Raman spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM). Moreover, the dimensional stability of the modified wood was measured and found to be considerably improved.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This work was supported by the National Key Research and Development Plan of China (no. 2017YFD0600203).

  3. Employment or leadership: None declared.

  4. Honorarium: None declared.

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Received: 2018-06-14
Accepted: 2018-11-21
Published Online: 2018-12-25
Published in Print: 2019-05-27

©2019 Walter de Gruyter GmbH, Berlin/Boston

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