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Volumn 127, Issue 9, 2005, Pages 3048-3056

Surface-catalyzed growth of polymethylene-rich copolymer films on gold

Author keywords

[No Author keywords available]

Indexed keywords

FILM GROWTH; GOLD COMPOUNDS; ORGANIC POLYMERS; POLYMERIZATION; SURFACE CHEMISTRY; THIN FILMS;

EID: 14844309620     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja043609z     Document Type: Article
Times cited : (24)

References (45)
  • 1
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    • Solvents and Non Solvents for Polymers
    • Brandrup, J., Immergut, E. H., Grulke, E. A., Eds.; Wiley: New York
    • Bloch, D. R. Solvents and Non Solvents for Polymers. In Polymer Handbook; Brandrup, J., Immergut, E. H., Grulke, E. A., Eds.; Wiley: New York, 1998.
    • (1998) Polymer Handbook
    • Bloch, D.R.1
  • 24
    • 0001557536 scopus 로고
    • Wiley: New York, Collect
    • Arndt, F. Organic Syntheses; Wiley: New York, 1943; Collect. Vol. IV, pp 165-167.
    • (1943) Organic Syntheses , vol.4 , pp. 165-167
    • Arndt, F.1
  • 25
    • 0001512872 scopus 로고    scopus 로고
    • Refractive Indices of Polymers
    • Brandrup, J., Immergut, E. H., Grulke, E. A., Eds.; Wiley: New York
    • Seferis, J. C. Refractive Indices of Polymers. In Polymer Handbook; Brandrup, J., Immergut, E. H., Grulke, E. A., Eds.; Wiley: New York, 1998.
    • (1998) Polymer Handbook
    • Seferis, J.C.1
  • 26
    • 14844319397 scopus 로고    scopus 로고
    • note
    • To verify that the absence of polymer film upon exposure to EDA is not related to solvent, other solvents, such as toluene and isooctane, were used, but no polymer was formed on the gold surface by EDA alone. However, copolymer films were formed in toluene and isooctane solvents upon exposure of gold to DM and EDA. In toluene, we obtained a film with nearly the same composition and thickness as that grown in ether, but in isooctane, the contribution of EDA toward the copolymerization is higher and the DM contribution is lower than that observed for the film grown in ether. PM films also formed on the gold surface by DM in both toluene and isooctane solvent, but no difference was observed among PM films from ether, toluene, and isooctane by IR analysis. A more detailed analysis of this solvent dependence will be discussed in a later manuscript.
  • 31
    • 14844285505 scopus 로고    scopus 로고
    • note
    • For comparison, the advancing contact angle of water on the PM homopolymer is 125°. This high value is likely due to surface roughness as the contact angle hysteresis for the homopolymer is 55°.
  • 34
    • 14844300350 scopus 로고    scopus 로고
    • note
    • The complete hydrolysis can occur but is slow and often causes damage to the film.
  • 43
    • 14844331167 scopus 로고    scopus 로고
    • note
    • 2/s (based on values obtained for molecules of similar molecular weight (M) through HDPE), the film thickness (d) at which the growth becomes diffusion-limited is estimated as ∼30 μm via d = (DCM/ηρ). This analysis equates the known flux of the growing film (obtained from Figure 3a) to the diffusive flux of DM (the dominant contributor toward film growth) through the film. Since the typical film thicknesses in this study range from 100 to 500 nm (orders of magnitude below the critical thickness (d)), the film growth can be viewed as reaction-limited.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.