Autor:	Myongsoo Lee, Virgil Percec, Jens Höpken, Martin Möller
Rok vydání:	1992
Předmět:	chemistry.chemical_compound Monomer chemistry Polymerization Comonomer Polymer chemistry Side chain medicine Cationic polymerization Copolymer Vinyl ether Vinyl polymer medicine.drug
Zdroj:	Die Makromolekulare Chemie. 193:275-284
ISSN:	0025-116X
DOI:	10.1002/macp.1992.021930125
Popis:	2-Perfluoro(alkyl)ethyl vinyl ethers, F(CF2)nCH2CH2OCHCH2, (n = 6 or 8), were synthesized and polymerized by means of cationic initiators (HI/ZnI2 and CF3SO3H/(CH3)2S). The perfluorohexyl-substituted poly(vinyl ether) is completely amorphous. The polymer with perfluorooctyl segments shows side chain crystallization with a disordering transition. For the corresponding perfluorooctyl monomer a liquid-crystalline phase was observed before melting. Copolymerization experiments of the flurocarbon-segmented monomers with a vinyl ether containing a cyanobiphenyl group in the side chain did not give homogeneous copolymers. This is attributed to the slower rate of polymerization of the fluorinated vinyl ethers as compared with the liquid-crystalline comonomer.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fec6448b6051a7cf789a50f2d210dc65 https://doi.org/10.1002/macp.1992.021930125 Zobrazit plný text záznamu Plný text