Novel unsaturated sucrose ethers and their application as monomers.
Molecules
; 13(4): 762-70, 2007 Mar 28.
Article
em En
| MEDLINE
| ID: mdl-18463572
ABSTRACT
Novel unsaturated ethers were synthesised in good yields starting from sucrose,using a two-step mild and efficient procedure based on the Gassman method, which consists in forming a vinyl group by the elimination of ethanol from mixed acetals with trimethylsilyl trifluoromethanesulfonate in the presence of alkyl amines. Mixed acetals are readily obtained from the corresponding alcohols and ethyl vinyl ether, using an acidic catalyst. Conventional etherification involving a primary halide was also examined. The monomers thus obtained were successfully polymerised by a free radical mechanism,yielding unbranched linear and soluble polymers with pending sucrose moieties, and some of their physical properties were determined.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sacarose
/
Éteres
Idioma:
En
Ano de publicação:
2007
Tipo de documento:
Article