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Titolo:
SYNTHESIS OF DEUTEROBUTADIENE-BUTADIENE AB(2) AND AB(3) MIKTOARM STARCOPOLYMERS
Autore:
HUTCHINGS LR; RICHARDS RW;
Indirizzi:
UNIV DURHAM,INTERDISCIPLINARY RES CTR POLYMER SCI & TECHNOL DURHAM DH1 3LE ENGLAND
Titolo Testata:
Polymer bulletin
fascicolo: 3, volume: 41, anno: 1998,
pagine: 283 - 289
SICI:
0170-0839(1998)41:3<283:SODAAA>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
HYDRODYNAMIC PROPERTIES; POLYBUTADIENE; POLYSTYRENE; POLYMERS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
L.R. Hutchings e R.W. Richards, "SYNTHESIS OF DEUTEROBUTADIENE-BUTADIENE AB(2) AND AB(3) MIKTOARM STARCOPOLYMERS", Polymer bulletin, 41(3), 1998, pp. 283-289

Abstract

The synthesis of well-defined, monodisperse AB(2) and AB(3) miktoarm star copolymers, in which A is polydeuterobutadiene and B is polybutadiene, is described. The synthetic procedure involved reacting living polydeuterobutadiene with a large excess of either methyltrichlorosilane or tetrachlorosilane to yield a one-arm star'. SEC traces of this 'one-arm star' are indistinguishable from that of the uncoupled polydeuterobutadiene indicating no further coupling to form multi-arm stars occurs. Unreacted chlorosilane was removed by distillation and the introduction of an excess of living polybutadiene generates the star. The star polymer was isolated from the precursor polybutadiene by fractionation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 04:59:56