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Reactions of cellulose and wood superficial hydroxy groups with organometallic compounds
Author(s) -
Fabbri Paola,
Champon Géraldine,
Castellano Maila,
Belgacem Mohamed Naceur,
Gandini Alessandro
Publication year - 2004
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1396
Subject(s) - microcrystalline cellulose , cellulose , x ray photoelectron spectroscopy , contact angle , fourier transform infrared spectroscopy , polymer chemistry , materials science , coupling reaction , infrared spectroscopy , polymer , chemistry , organic chemistry , chemical engineering , composite material , catalysis , engineering
Various lignocellulosic substrates, including microcrystalline cellulose, pinewood and hemp fibres, were treated with triethylaluminium and triethylboron in suspensions, in non‐swelling media. Chemical and spectroscopic analyses show that coupling surface reactions took place between one or two metal‐to‐carbon (Mt–C) bonds and the OH groups of the natural polymers. The remaining unreacted Mt–C bonds were exploited to graft numerous molecular structures derived from alcohols and amines. The occurrence of the second reaction was proved by Fourier‐transform infrared spectroscopy, elemental analyses, X‐ray photoelectron spectroscopy and contact angle measurements. Copyright © 2004 Society of Chemical Industry