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Volumn 13, Issue 11, 1997, Pages 2988-2992

Selective accumulation of functional groups at the film surfaces of stereoregular poly(methyl methacrylate)s

Author keywords

[No Author keywords available]

Indexed keywords


EID: 0001640181     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la9700275     Document Type: Article
Times cited : (53)

References (65)
  • 32
    • 5344238258 scopus 로고    scopus 로고
    • note
    • Restructuration of solid polymer surfaces may occur on extended contact with water, resulting in the time dependence of advancing and receding contact angles (refs 5, 22, and 30). Advancing and receding contact angles on the surfaces of stereoregular PMMAs, as well as their time-dependent dynamics, will be examined in a future report.
  • 37
    • 5344239666 scopus 로고    scopus 로고
    • note
    • Wide-angle X-ray diffraction was measured by means of a Rigaku automated diffractometer using Cu Kα radiation, with a scan speed of 4°/min.
  • 38
    • 5344276642 scopus 로고    scopus 로고
    • note
    • -1 was used as an index of the crystalline-amorphous content at the film surfaces.
  • 41
    • 0004278557 scopus 로고
    • Berg, J. S.; Ed.; Marcel Dekker Inc.: New York
    • Johnson, R. E.; Dettre, R. H. Wettability, Berg, J. S.; Ed.; Marcel Dekker Inc.: New York, 1993.
    • (1993) Wettability
    • Johnson, R.E.1    Dettre, R.H.2
  • 48
    • 5344226367 scopus 로고    scopus 로고
    • note
    • One might have expected the difference between advancing and receding contact angles (i.e., contact angle hysteresis) to be more sensitive to the variations in the chemical heterogeneity, as compared to the "classic", static contact angle. However, it must be realized that other factors, such as surface roughness, swelling, penetration of wetting liquid, and surface reconstruction, also contribute to the contact angle hysteresis Because so many factors are involved, general quantitative models of the phenomenon have not been developed so far (ref 41). Consequently, wetting hysteresis cannot, at present, be used to reliably diagnose the surface chemical compositions (ref 45).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.