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Titolo:
MESOMORPHIC STRUCTURES IN FLEXIBLE POLYMER SURFACTANT SYSTEMS DUE TO HYDROGEN-BONDING - POLY(4-VINYLPYRIDINE)-PENTADECYLPHENOL
Autore:
RUOKOLAINEN J; TENBRINKE G; IKKALA O; TORKKELI M; SERIMAA R;
Indirizzi:
HELSINKI UNIV TECHNOL,DEPT TECH PHYS,RAKENTAJANAUKIO 2 C FIN-02150 ESPOO FINLAND HELSINKI UNIV TECHNOL,DEPT TECH PHYS FIN-02150 ESPOO FINLAND HELSINKI UNIV,DEPT PHYS FIN-00014 HELSINKI FINLAND UNIV GRONINGEN,POLYMER CHEM LAB 9747 AG GRONINGEN NETHERLANDS UNIV GRONINGEN,CTR MAT SCI 9747 AG GRONINGEN NETHERLANDS
Titolo Testata:
Macromolecules
fascicolo: 10, volume: 29, anno: 1996,
pagine: 3409 - 3415
SICI:
0024-9297(1996)29:10<3409:MSIFPS>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
SODIUM DEXTRAN SULFATE; DODECYLTRIMETHYLAMMONIUM IONS; ELECTROLYTE INTERACTIONS; AQUEOUS-SOLUTION; POLY(STYRENESULFONATE); POLYELECTROLYTES; BINDING; BLENDS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
54
Recensione:
Indirizzi per estratti:
Citazione:
J. Ruokolainen et al., "MESOMORPHIC STRUCTURES IN FLEXIBLE POLYMER SURFACTANT SYSTEMS DUE TO HYDROGEN-BONDING - POLY(4-VINYLPYRIDINE)-PENTADECYLPHENOL", Macromolecules, 29(10), 1996, pp. 3409-3415

Abstract

Properly selected hydrogen bonding suffices to induce mesomorphic structures in mixtures of flexible polymers and nonmesogenic surfactants. For poly(4-vinylpyridine)-3-pentadecylphenol (P4VP(PDP)(x)) complexes, the long period of the lamellar structure decreases as x(-1) (x is the number of PDP molecules per P4VP repeat unit) in complete contrast to similar polyelectrolyte systems. Upon cooling from 80 degrees C to the room temperature, the long period gradually increases and levels off at around 30 degrees C at a value which is approximately 4 Angstromabove the starting value. After an induction time, a structural transformation occurs in the highly complexed samples, due to the crystallization of the alkyl side chains. It is accompanied by a sudden decrease in the long period of approximately 5 Angstrom. However, the structure is not stable and after an additional induction time both structures are present in the samples. Arguments to explain most of the observed phenomena will be given.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 11:20:38