Introduction 4-vinylpyridine

Electropolyraerization is useful and has been successfully applied to 4-vinylpyridine complexes and to 4-methyl-4 -vinyl-2,2 -bipyridyl.52 Vinylferrocene (vide infra) has been polymerized on to platinum, glassy carbon and titanium dioxide electrodes by introduction to a radiofrequency argon plasma discharge. Electropolymerization and plasma polymerization are likely to be of value to produce copolymers on electrode surfaces. 

Lai et al. (1995) introduced chanically modified TPX m brane for PV separation of acetic acid-water mixtures. The introduction of high hydrophilic 4-vinylpyridine (4-VP) monomer into the TPX matrix was done by free-radical polymerization to form the TPX/P4-VP membrane. The separation factor and the permeation rate of TPX/P4-VP membranes were higher than those of the unmodilied TPX membranes for PV of aqueous acetic acid solutions. 

INTRODUCTION Polymer molecules may have a variety of architectural structures such as linear, ring, star, branched, and ladder chains as well as three-dimensional network structures. The first synthetic cyclic polymers to be prepared and characterized were the poly(dimethylsiloxanes) (PDMS), which were reported in ] 977 (1) Since that time a number of other cyclic polymers have been synthesized including cyclic polystyrene, cyclic poly(phenylmethylsiloxane), cyclic poly(2-vinylpyridine), cyclic polybutadiene, and cyclic poly(vinylmethylsiloxane). ... 

Stachera, D.M., Childs, R.F. (2001) Tuning the acid recovery performance of poly(4-vinylpyridine)-filled membranes by the introduction of hydrophobic groups. Journal of Membrane Science, 187, 213-225. 

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