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A facile approach to surface graft vinyl acetate onto polyolefin articles
Author(s) -
Tan Lin,
Deng Jianping,
Yang Wantai
Publication year - 2004
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.503
Subject(s) - low density polyethylene , vinyl acetate , polyolefin , materials science , monomer , attenuated total reflection , polymer chemistry , vinyl alcohol , benzoyl peroxide , aqueous solution , contact angle , polyethylene , polymerization , chemical engineering , grafting , peroxide , infrared spectroscopy , composite material , organic chemistry , copolymer , polymer , chemistry , layer (electronics) , engineering
A facile and environment friendly approach was developed to graft vinyl acetate (VAc) onto plastic articles in an aqueous solution using tert ‐butyl alcohol (TBA) as a compatiblizer and benzoyl peroxide (BPO) as an initiator. In a novel setup, excessive monomer suspended in a water phase, VAc could be conveniently grafted on the model substrate of low‐density polyethylene (LDPE) film and the graft percentage (GP) could be developed up to 7.3%. Reaction temperature could increase GP significantly, while adding monomer over a critical volume did not influence GP. By adding some paradioxybenzene, i.e. 0.06–0.08% in VAc phase, homopolymer PVAc could be avoided practically, while graft polymerization proceeded favorably in aqueous solutions. It was proved by attenuated total reflection‐infrared (ATR‐IR) spectroscopy that grafted VAc was located mainly at the surface of the LDPE film and hydrophilic nature of both grafted and alcoholyzed films were improved via contact angle measurements. Copyright © 2004 John Wiley & Sons, Ltd.