Vinyl ether polymer

Although no longer of significant commercial interest, the characteristics of some of the amorphous homopolymers commercially available at one time or another are illustrated in Table 4. No crystalline polymers are known to have been commercialized. This lack of commercial success results from the economically competitive situation concerning vinyl ether polymers versus other, more readily available polymers such as those based on acryUc and vinyl ester monomers. 

The poly(vinyl ethers), whieh were first made available in Germany before 1940, are not of importance in the plastics industry but have applications in adhesives, surfaee coatings and rubber technology. Of the many vinyl ether polymers prepared, only those from the vinyl alkyl ethers and some halogenated variants are of interest. Two methods of monomer preparations may be used. 

Because the covalent initiator is incorporated into the polymer chain as an end group, end-functionalized polymers can be prepared using functionalized initiators. This has been used extensively in vinyl ether polym-... 

M. Biswas, A. Mazumdar, and P. Mitra, Vinyl ether polymers, Encyclopedia of Polymer Science and Engineering (EPSE), 2nd ed., Wiley-Interscience, New-York, 1989, Vol. 17, pp. 447-468. 

Lutonal [BASF]. TM for vinyl ether polymers, solid and in solution. 

Transition metal catalyzed, ring opening polymerization Dispersion, cationic polymerization Homogeneous/precipitation, cationic polymerization Homogeneous, free radical/cationic polymerization Precipitation, free radical polymerization Dispersion, free radical polymerization Norbornene polymer, polycarbonate Isobutylene polymer Vinyl ether polymer Amorphous fluoropolymers Vinyl polymer, semicrystalline fluoropolymers Polyvinyl acetate and ethylene vinyl acetate copol5Tner... 

M.U. Kahveci, M.A. Tasdelen, and Y. Yagci, Photochemically initiated free radical promoted living cationic polymerization of isobutyl vinyl ether. Polymer 2007, 48(8), 2199-2202. 

D.J. Connolly and W.F. Gresham, Fluorocarbon vinyl ether polymers. USP 3,282,875, 1966 P.R. Resnick, Preparation of sulfonic acid containing vinyl ethers, USP 3,560,568 K. Kimoto, H. Miyauchi, J. Ohmura, M. Ebisawa and H. Hane, Novel fluorinated copolymers with tridihydro fluorosulfonyl fluoride pendant groups and preparation thereof. USP 4,329,435. 

Maieic anhydride methyl vinyl ether polymer... 

VER Verdonek, B., Gohy, J.-F., Khousakoun, E., Jerome, R., and DuPrez, F., Association behavior of thermo-responsive block copolymers based on poly(vinyl ethers). Polymer, 46, 9899, 2005. 

The adhesives discussed above are all applied in the solution and hot-melt forms. These are pressure-sensitive at room temperature. These materials may be based on EVA copolymers tackified with various resins and softeners. They produce rather soft adhesives with poor cohesive strength. Their use is small, mostly on label stock. Of wider interest are hot-melt adhesives based on the block copolymers of styrene with butadiene or isoprene. Vinyl ether polymers are also used, particularly in medicinal self-adhering plasters or dressings. ... 

Aoshima, S., and T. Higashimura. 1984. Vinyl ether oligomers with conjugated-polyene and acetal terminals a new chain-transfer mechanism for cationic polymerization of vinyl ethers. Polymer Journal 16(3) 249-258. 

The open transition state—-hybridized carbocations— has low stereoselectivity, thus mostly atactic polymers are formed (94). At the same time, reportedly the very first synthetic stereoregular polymer was an isotactic poly(isobutyl vinyl ether) prepared by carbocationic polymerization initiated with BF3/0(C2115)2 at -78°C (95). Other examples of stereoregular crystalline polymers synthesized by homogeneous and heterogeneous carbocationic polymerization are polymers of vinyl ether derivatives, and 2,5-dimethyl styrene or a-methylstyrene (95-100). Stereoregular vinyl ether polymers have also been synthesized using... 

POLY(VINYL ETHER). See Vinyl Ether Polymers. 

Connoly, C. Gresham, D. J. Eluorocarbon vinyl ether polymers. US Patent 3,282,875, 1966. 

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