Mechanism of Trialkylborane Promoted Adhesion to Low Surface Energy Plastics

Excellent adhesion to low surface energy substrates such as polypropylene, polyethylene, poly(vinyl difluoride), and poly(tetrafluoroethylene) is obtained with acrylic polymerization initiated by trialkylboranes at room temperature and without need for surface pretreatment. The mechanism of adhesion...

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Bibliographic Details
Published inMacromolecules Vol. 37; no. 21; pp. 7974 - 7978
Main Authors Sonnenschein, Mark F, Webb, Steven P, Kastl, Patrick E, Arriola, Daniel J, Wendt, Benjamin L, Harrington, Daniel R, Rondan, Nelson G
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 19.10.2004
Subjects
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
Polyethylene
Surface reaction
Breakdown initiation
Tetrafluoroethylene polymer
Propylene polymer
Experimental study
Adhesion
Promoter
Free radical polymerization
Vinylidene fluoride polymer
Reaction mechanism
Organic borane
Mechanism of action
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Summary:Excellent adhesion to low surface energy substrates such as polypropylene, polyethylene, poly(vinyl difluoride), and poly(tetrafluoroethylene) is obtained with acrylic polymerization initiated by trialkylboranes at room temperature and without need for surface pretreatment. The mechanism of adhesion is a consequence of a series of radical processes resulting from the initial oxidation of the trialkylborane followed by the production of alkoxy and alkyl radicals. This paper will elucidate the mechanism of adhesion using both experiment and theory.
ISSN:0024-9297
1520-5835
DOI:10.1021/ma040095f