ISSN:
0025-116X
Schlagwort(e):
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Physik
Notizen:
The intramolecular mobility of copolymers 4 was investigated by means of dielectrospectroscopy. The copolymers exhibit a convenient model for the study of local mobility in side-chain thermotropic polymers without spacer. The dependencies of the dielectric losses on frequency and temperature point to the presence of relaxation processes related to the intramolecular mobility of fragments of the mesogenic group. For the formation of the liquid-crystalline state two factors are important: different forms of local mobility inside the mesogenic groups and a flexible connection between side chain and main chain.
Zusätzliches Material:
5 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/macp.1992.021931106
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