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Volumn 333, Issue 2-3, 2007, Pages 254-264

Temperature dependence of spectroscopic properties of isolated polydiacetylene chains strained by their monomer single crystal matrix

Author keywords

Absorption Raman spectroscopy; Diacetylene crystals; Isolated polydiacetylene chains; Strained polymer chains

Indexed keywords


EID: 33947259999     PISSN: 03010104     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.chemphys.2007.02.009     Document Type: Article
Times cited : (15)

References (69)
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    • note
    • Such large values are surprising. The upper limit of the Poisson ratio is 0.5, corresponding to an incompressible medium [see for instance: A.E.H. Love, A Treatise on the Mathematical Theory of Elasticity, (Dover, NewYork, 1944) p. 103. Or: O.H. Varga, Stress-strain behaviour of elastic materials, (Interscience, New-York, 1966) p. 108]. In an anisotropic medium the ratio has to be calculated from the transverse area, leading to the same limit. In poly-DCH, the measured lateral contraction is fairly isotropic. Since the crystal is certainly not incompressible, the experimental value should be smaller than 0.5, and probably close to the generally found value of about 1/3.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.