Protection and polymerization of functional monomers, 31a: Living anionic polymerization of styrene derivatives m,m′-disubstituted with acetal-protected monosaccharide residues

Macromolecular Chemistry and Physics

Volumn 202, Issue 9, 2001, Pages 1791-1798

  Loykulnant, Surapich ^a   Yamashiro, Midori ^a   Hirao, Akira ^a  

^a TOKYO INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

3,5 BIS(1,2:3,4 DI O ISOPROPYLIDENE ALPHA DEXTRO GALACTOPYRANOSE 6 OXYMETHYL)STYRENE; 3,5 BIS(1,2:5,6 DI O ISOPROPYLIDENE ALPHA DEXTRO GLUCOFURANOSE 3 OXYMETHYL)STYRENE; ACETAL DERIVATIVE; GALACTOSE; GLUCOSE; ISOPHTHALIC ACID; MONOSACCHARIDE; POLYMER; STYRENE DERIVATIVE; TRIFLUOROACETIC ACID; UNCLASSIFIED DRUG;

ARTICLE; CHEMICAL REACTION; MOLECULAR WEIGHT; POLYMERIZATION; QUANTITATIVE ANALYSIS; SOLUBILITY; SYNTHESIS;

EID: 0035816817     PISSN: 10221352     EISSN: None     Source Type: Journal    
DOI: 10.1002/1521-3935(20010601)202:9<1791::AID-MACP1791>3.0.CO;2-S     Document Type: Article

References (17)

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16. [9] no polymer was obtained in the polymerizations of 10 with either sec-BuLi or potassium naphthalenide in THF at -78 °C. Furthermore, the insoluble gelatinous material was formed by adding 10 to difunctional living polystyrene.
17. We previously reported that ca. 50% of living polymer derived from 3 survived under the conditions at -78 °C for 22 h and -30 °C for 0.5 h. It has however been found recently that only ca. 10% of the starting living polymers derived from 3 survived under such polymerization conditions by determination from the molecular weights of the block copolymers obtained after adding an appropriate amount of styrene to each of both polymerization systems (-78 °C for 22 h and -30 °C for 0.5 h).