Pregled bibliografske jedinice broj: 815974
Aromatic side-chain liquid-crystalline polyurethanes with azobenzene mesogenic units
Aromatic side-chain liquid-crystalline polyurethanes with azobenzene mesogenic units // Polymer bulletin, 48 (2002), 2; 151-158 doi:10.1007/s00289-002-0027-x (međunarodna recenzija, članak, znanstveni)
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Naslov
Aromatic side-chain liquid-crystalline polyurethanes with azobenzene mesogenic units
Autori
Brecl, Marko ; Ambrožić, Gabriela ; Žigon, Majda
Izvornik
Polymer bulletin (0170-0839) 48
(2002), 2;
151-158
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
liquid-crystals ; polymer ; polyurethane ; synthesis
Sažetak
We have synthesized SC-LCPUs from 1, 1'-methylenebis(4-isocyanatobenzene) (MDI) and azobenzene mesogenic diols (alpha-[bis(2-hydroxyethyl)amino]-omega-(4-R-azobenzene-4'-oxy)alkanes, R = -OCH3, -CN and -NO2) with 4, 8 or 12 methylene spacer units. All the C4RMDIP are amorphous polymers showing no mesomorphic properties, whereas for C8RMDIP polyurethanes only C8OMeMDIP is liquid-crystalline. The smectic structures of C12RMDIP polymers are defined by the terminal group ; the layer spacing values give the order CN>NO2>OMe.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
