Functionalization of poly(1,3-dioxolane)
| Autor: | S. Ould. Kada, Nabahat Sahli, Léonard Reibel, Pierre J. Lutz, Emile Franta, Mohammed Belbachir |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics Ethylene oxide Organic Chemistry Polymer Condensed Matter Physics chemistry.chemical_compound chemistry Polymerization Dioxolane Polymer chemistry Materials Chemistry Copolymer Surface modification Organic chemistry Ethylene glycol |
| Zdroj: | Macromolecular Symposia. 85:167-174 |
| ISSN: | 1022-1360 |
| Popis: | 1,3-Dioxolane was polymerized in the presence of ethylene glycol in order to prepare α,ω-dihydroxylated polymers which, upon reaction with pluriisocyanates yielded networks swellable in water. The crosslinks were made of urethane groups, which are bulky and hydrophobic. In order to expand the scope of the networks that can be envisioned, we have studied the replacement of the two end-standing hydroxylic groups by unsaturated polymerizable groups. Several methods are presented which allow successfully the quantitative endowment of the polymer endings with methacryloyl- or styryl- or vinylether-type groups. α,ω-dihydroxylated poly(1,3-dioxolane) was also metallated and used as a macroinitiator for the polymerization of ethylene oxide: the α,ω-dihydroxylated triblock copolymer obtained is made of a central poly(1,3-dioxolane) block flanked by two poly(ethylene oxide) ones. Several methods are also shown to be efficient in the characterization of the hydroxylic end-standing functions of the polymer. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text