Hostname: page-component-7b7567c8c-7pwfn Total loading time: 0 Render date: 2026-11-13T13:22:20.311Z Has data issue: false hasContentIssue false
  • English
  • Français

Modification of Silicone Elastomers Using Silicone Comonomers Containing Hydrophilic Surface Active Endgroups

Published online by Cambridge University Press:  07 January 2014

Jonathan Goff,
Barry Arkles and
Santy Sulaiman
Jonathan Goff
Affiliation:
Gelest Inc, 11 E Steel Road, Morrisville, PA 16067, U.S.A.
Barry Arkles
Affiliation:
Gelest Inc, 11 E Steel Road, Morrisville, PA 16067, U.S.A.
Santy Sulaiman
Affiliation:
Gelest Inc, 11 E Steel Road, Morrisville, PA 16067, U.S.A.
Get access

Abstract

A facile technique was developed for a long-term increase in silicone elastomer surface hydrophilicity, eliminating the need for post-cure surface treatment (e.g. oxygen plasma or surface grafting). Well-defined silicones (1-4 kDa) with a central vinyl functionality and discrete PEG2, PEG3 and tetrahydrofurfuryl (THF) pendant endgroups were synthesized, characterized and used as comonomers in addition-cure, platinum catalyzed 2-part silicone elastomer formulations. The modified silicone elastomers were optically clear and maintained the mechanical performance characteristic of this class of material with up to 20 wt.% comonomer in the 2-part formulation. Contact angle measurements of deionized water on the silicone elastomer surface showed improved wettability with comonomer content. The elastomer surface shifted from hydrophobic (contact angle ∼120°C) to hydrophilic (contact angle < 90°C) at ∼5 wt.% comonomer loadings for extended time frames (> 5 months). Coefficient of friction measurements of the modified silicone elastomers revealed an increase in surface lubricity with comonomer loadings.

Keywords

polymersurface chemistrybiomaterial

Information

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1626: Symposium K – Adaptive Soft Matter through Molecular Networks , 2014, mrsf13-1626-k11-07
Copyright
Copyright © Materials Research Society 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

REFERENCES

Noll, W., Chemistry and Technology of Silicones. Academic: 1968 Google Scholar
Arkles, B. Organosilicon Chemistry: Molecules to Materials Vol. IV. 2000, 592–612 CrossRefGoogle Scholar
Warrick, E. Rubber Chem. Tech., 52(3), 437, 1979 CrossRefGoogle Scholar
Hillborg, H. Silicone Surface Sci., 4(11), 299, 2012 CrossRefGoogle Scholar
Chojnowski, J. J. Inorg. Organomet. Polym. 1991, 1 (3), 299–323.CrossRefGoogle Scholar
Frye, C. L.; Salinger, R. M.; Fearon, , et al. . J. Org. Chem. 1970, 35 (5), 1308–14.CrossRefGoogle Scholar
Arkles, B. C.; Kimble, E. US7799888, 2010 Google Scholar
Kimble, E.; Arkles, B.; Cameron, R. Polym. Prepr. 2009, 50 (2), 859–860 Google Scholar
Arkles, B. C.; Goff, J. D. US20130041098 A1, 2013 Google Scholar
Arkles, B. C.; Pan, Y.; Goff, J. D. US Pat. US 20120226002 A1, 2012 Google Scholar