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Role of Surface‐Anchored Polymer Chains in Adhesion and Slippage
Author(s) -
Léger L.,
Hervet H.,
Marciano Y.,
Deruelle M.,
Massey G.
Publication year - 1995
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.199500012
Subject(s) - slippage , elastomer , chemistry , polymer , adhesion , slip (aerodynamics) , surface energy , surface (topology) , solid surface , composite material , chemical physics , polymer science , geometry , thermodynamics , materials science , physics , mathematics , organic chemistry
When in contact with an attractive wall, polymer chains tend to form thick, surface‐anchored layers with an internal structure which can be controlled. We present and analyze experiments conducted on model systems aimed at understanding how such surface‐anchored polymer layers can act as adhesion promoters or can induce wall slip. For both situations, the key parameter is the degree of interdigitation between the surface layer and the bulk polymer system, either an elastomer or a melt. We analyze how this degree of interdigitation governs the optimum enhancement in the adhesion energy between the solid wall and an elastomer, and how it is at the origin of the very different wall slip regimes observed experimentally.