Abstract
Poly(N-alkyl-4-vinylpyridinium halide)s was prepared by reacting two poly(4-vinylpyridine)s (M v 25000 and 42700° with a range of straight-chain alkyl halides. The percentage of pyridine moieties quaternized was ca. 50% or ≥ 91%. Monolayers of the various products on water displayed good isotherms which included significant «solid» regions and collapse pressures ≥ 26 mN/m. The monolayers could be transferred onto hydrophobic Si wafers. The monolayers of polymers with side chains containing ≤ C 11 transferred well on the upstroke and not at all ot only partially on the downstroke, though low angle X-ray diffraction data indicated that the multilayers produced Y-type structures
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