Orthocarbonates have received attention for their ability to improve com posite properties by a possible mechanism involving ring opening and simultaneous reduc tion of resin cure shrinkage. We conducted a detailed investigation of the physicochemical behavior of an orthocarbonate-epoxy resin blend known to reduce the residual stress in a composite. The orthocarbonate was found neither to undergo chemical reaction, nor to reduce resin cure shrinkage. However, its significant reduction of the resin Tg was found to be the feature that brought about the reduced residual stress in the composite.
Bailey, W.J. and R.L. Sun.1972. "The Polymerization of Spiro Orthoesters," in American Chemical Society, Division of Polymer Chemistry Preprints , 13:281.
2.
Bailey, W.J., R.L. Sun, H. Katsuki, T. Endo, H. Iwama, R. Tsushima, K. Saigo and M.M. Buttrito.1977. "Ring Opening Polymerization with Expansion in Volume," in Ring Opening PolymerizationACS Symposium Series No. 59, , T. Saegusa and E. Goethals, eds., Washington, D.C.: American Chemical Society, p. 39.
3.
Bailey, W.J."Polycyclic Ring-Opened Polymers,"U.S. Patent 4,387,215, June 7, 1983.
4.
Bailey, W.J. and M.J. Amone.1987. "Cationic Ring-Opening Polymerization of Bifunctional Aromatic Spiro-Orthocarbonates,"Polymer Preprints, 28(1):45.
5.
Bailey, W.J. , M.J. Amone, B. Issari, Y.-N. Lin, K. No , C.-Y. Pan, K. Saigo, J. Stansbury, S.R. Tan, C. Wu , N. Yamazaki and J. Zhou.1986. "Polymerization with Expansion in Volume for Improved Matrices and Adhesives,"Preprints, Polym. Sci. Mat. Eng. , 54:23.
Lim, J.T., M.R. Piggott and W.J. Bailey.1984. "Toughness of Fiber Composites with Controlled Matrix Shrinkage,"SAMPE Quarterly (July):25.
8.
Penn, L.S., C.T. Chou, A.S.D. Wang and W.K. Binienda.1989. "The Effect of Matrix Shrinkage on Damage Accumulation in Residual Stresses,"J. Composite Mater., 23:570.
9.
Harrod, J.F. and P.V. Gheluwe.1979. Canadian J. Chem., 51:890.
10.
Dyer, J.R.1965. Applications of Absorption Spectroscopy of Organic CompoundsEnglewood Cliffs, New Jersey: Prentice Hall, Inc.
11.
Jones, F.R. and M. Mulheron.1983. "The Effect of Moisture on the Expansion Behavior and Thermal Strains in GRP,"Composites (July):281.
12.
Bailey, J.E. , P.T. Curtis and A. Parvisi.1979. "On the Transverse Cracking and Longitudinal Splitting Behaviour of Glass and Carbon Fibre Reinforced Epoxy Crossply Laminates and Effect of Poisson and Thermally Generated Strain,"Proc. Royal Society, London, A366:599.
