Share Email Print

Proceedings Paper

Transparent poly(vinyl acetate)-silica gels by a sol-gel process
Author(s): Anna B. Wojcik; Lisa C. Klein
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Rod shaped silica-poly(vinyl acetate) (PVAc) gels have been prepared by a sol gel process. In situ polymerization of tetraethoxysilane (TEOS) was accomplished in the presence of low molecular weight PVAc by dissolving various amounts of PVAc in a mixture of TEOS, ethanol, water and hydrochloric acid (HCl). Gelation of this mixture was carried out between room temperature and slightly above. Silica-PVAc rods recovered from cylindrical molds were homogeneous and transparent. Gels with weight percents of PVAc ranging from 2% to 50% were prepared. Silica-PVAc gels have higher flexure strengths, less brittle character and improved water durability in comparison with pure sol- gel silica.

Paper Details

Date Published: 6 December 1993
PDF: 7 pages
Proc. SPIE 2018, Passive Materials for Optical Elements II, (6 December 1993);
Show Author Affiliations
Anna B. Wojcik, Rutgers Univ. (United States)
Lisa C. Klein, Rutgers Univ. (United States)

Published in SPIE Proceedings Vol. 2018:
Passive Materials for Optical Elements II
Gary W. Wilkerson, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?