期刊
MACROMOLECULAR CHEMISTRY AND PHYSICS
卷 209, 期 18, 页码 1896-1899出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.200800265
关键词
elastomers; mechanical properties; monodomain; Poisson's ratio
资金
- National Textile Center [M04-G21]
Monodomains of smectic C liquid crystalline elastomers were prepared by controlled stretching of a polydomain thin film. Specimens were prepared from this film for stress-strain study. A Poisson's ratio of zero was found at small strains for uniaxial stretching perpendicular to the director For uniaxial strain parallel to the director, Poisson's ratios of approximately 0.4-0.5 were found (by extrapolation) for very small strains. A modulus anisotropy of 8 was found for stretching parallel versus perpendicular to the director.
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