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Volumn 42, Issue 13, 2009, Pages 4712-4718

Dielectric relaxation of polymer/carbon dioxide systems

Author keywords

[No Author keywords available]

Indexed keywords

CONCENTRATION FLUCTUATION; DI-N-BUTYL PHTHALATE; DIELECTRIC MEASUREMENTS; POLYLACTIC ACIDS; POLYMER RELAXATIONS; SEGMENTAL DYNAMICS; SEGMENTAL MOTION; SEGMENTAL RELAXATION; SOLVENT CONCENTRATION; SPATIAL FLUCTUATION; STRONG CONTRAST; UNIQUE FEATURES;

EID: 67650496009     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma900571d     Document Type: Article
Times cited : (15)

References (23)
  • 12
    • 34548608881 scopus 로고    scopus 로고
    • Dielectric and Mechanical Spectroscopy - a Comparison
    • Kremer, F, Schönhals, A, Eds, Springer: Berlin, Chapter 16, pp
    • Pakula, T. Dielectric and Mechanical Spectroscopy - a Comparison. In Broadband Dielectric Spectroscopy; Kremer, F., Schönhals, A., Eds.; Springer: Berlin, 2003; Chapter 16, pp 597-623.
    • (2003) Broadband Dielectric Spectroscopy , pp. 597-623
    • Pakula, T.1
  • 13
    • 0346846281 scopus 로고    scopus 로고
    • Theory of Dielectric Relaxation
    • Kremer, F, Schönhals, A, Eds, Springer: Berlin, Chapter 1, pp
    • Schönhals A.; Kremer, F. Theory of Dielectric Relaxation. In Broadband Dielectric Spectroscopy; Kremer, F., Schönhals, A., Eds.; Springer: Berlin, 2003; Chapter 1, pp 1-33.
    • (2003) Broadband Dielectric Spectroscopy , pp. 1-33
    • Schönhals, A.1    Kremer, F.2
  • 15
    • 67650381717 scopus 로고    scopus 로고
    • The swelling of PLA (and PS) with CO2 does not affect the dielectric data obtained with our cell having the fixed gap between the electrodes, as explained in the text. Nevertheless, it is informative to consider unrealistic cases: case 1 where the electrodes are freely mobile and the swollen material fully remained between the électrodes and case 2 where the material is affinely swollen between the mobile electrodes. The gap increases from L0 (initial value before swelling) to L0rv and L0rv1/3 for the cases 1 and 2, respectively, with rv (> 1) being the expansion ratio. The gap increase itself reduces, by factors of 1/r v and 1/rv1/3 for the case 1 and 2, the apparent dielectric intensity Δεapp uncorrected for this increase. Since the PLA concentration in the swollen material is given by c, ρref
    • 14 The lack of the effect of swelling on the data measured with our cell can be confirmed also from this result.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.