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Titolo:
Hydrodynamic properties of poly(1-trimethylsilyl-1-propyne) molecules in solutions
Autore:
Shtennikova, IN; Kolbina, GF; Korneeva, EV; Khotimskii, VS; Litvinova, EG;
Indirizzi:
Russian Acad Sci, Inst Macromol Cpds, St Petersburg 199004, Russia RussianAcad Sci St Petersburg Russia 199004 t Petersburg 199004, Russia Russian Acad Sci, Topchiev Inst Petrochem Synth, Moscow, Russia Russian Acad Sci Moscow Russia iev Inst Petrochem Synth, Moscow, Russia
Titolo Testata:
RUSSIAN JOURNAL OF APPLIED CHEMISTRY
fascicolo: 8, volume: 71, anno: 1998,
pagine: 1426 - 1431
SICI:
1070-4272(199808)71:8<1426:HPOPMI>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
POLYACETYLENES; PERMEABILITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Shtennikova, IN Russian Acad Sci, Inst Macromol Cpds, St Petersburg 199004, Russia Russian Acad Sci St Petersburg Russia 199004 004, Russia
Citazione:
I.N. Shtennikova et al., "Hydrodynamic properties of poly(1-trimethylsilyl-1-propyne) molecules in solutions", RUS J AP CH, 71(8), 1998, pp. 1426-1431

Abstract

A new organosilicon polymer poly(1-trimethylsilyl-1-propyne) was synthesized from disubstituted polyacetylene with the use of the catalytic system TaCl5/BuLi. Hydrodynamic properties of samples and fractions of the polymer in solutions were studied over a 70-fold range of molecular weight by forward diffusion, high-speed sedimentation, viscometry, and gel-permeation chromatography. The temperature dependence of the intrinsic vicsosity in varioussolvents were studied. Possible structural factors affecting the conformation of poly(1-trimethylsilyl-1-propyne) molecules are considered.

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Documento generato il 04/07/20 alle ore 22:59:09