THE EFFECTS OF SOLUTION APPLICATION ON SOME MECHANICAL AND PHYSICAL PROPERTIES OF THERMOPLASTIC AMORPHOUS POLYMERS USED IN CONSERVATION: Poly(vinyl acetate)s
ERIC F. HANSEN, MICHELE R. DERRICK, MICHAEL R. SCHILLING, & RAPHAEL GARCIA
1. THE PVACs were obtained from Conservation Materials in Sparks, Nevada. The designations AYAC, AYAA, AYAF, and AYAT are copyrighted trade designations of Union Carbide.
Ashkok. J., and S. S. S. S. V.Avadhani. 1987. Preparation and elipsometric study of polymer films. Indian Journal of Pure and Applied Physics25:239–41.
ASTM. 1989. 1989 Annual book of ASTM standards. Philadelphia: American Society for Testing Materials. 6.01:324–27.
Briscoe, B., and A. C.Smith. 1983. Rheology of solvent-cast polymer films. Journal of Applied Polymer Science28:3,827–48.
Carre, A., D.Gamet, J.Schultz, and H. P.Schreiber. 1986. Non-uniformity in thin polymer films. Journal of Macromolecular Science-ChemistryA23(1):1–18.
Daniels, F., and R.Albertyh. 1975. Physical chemistry, 4th ed.New York: John Wiley and Sons. 655.
Druzik, Cecily. 1987. GPC determination of PVAC molecular weights. Getty Conservation Institute internal report.
Feller, R. L.1978. Standards in the evaluation of thermoplastic resins. ICOM Committee for Conservation Preprints, 5th Triennial Meeting, Zagreb, 16(4):1.
Haas, H. C., L.Farney, and C.Valle, Jr.1965. Some properties of ethylcellulose films. Journal of Colloid Science7:584–99.
Hansen, E. F., and A. G.Taketomo. 1989. A technical note on the casting of unsupported polymeric films. Studies in Conservation34:147–51.
Kurbanaliyiyev, M. K., I. K.Dustov, and A. Ya.Malkin. 1982. Influence of the prehistory of formation of films from solutions on their longevity. Polymer Science U.S.S.R.24:2,626–34.
Lindeman, M. K.1975. Physical constants of poly(vinyl acetate). In Polymer handbook, ed.J.Brandup and E. H.Immergurt. New York: John Wiley and Sons. 5:51–54.
Malkin, A. Ya.1983. Strength and long-term fracture of polymers formed from different solvents. Polymer Process Engineering1(1):93–108.
Materovsyan, M. S., A. A.Askadski, G. L.Slonimskii, and Ya. V.Genin. 1985. Effect of processing history of amorphous polymeric films specimen on their relaxation properties. Polymer Science U.S.S.R.27:2,165–72.
Newman, D. J., C. J.Nunn, and J. K.Oliver, 1975. Release of individual solvents and binary solvent blends from thermoplastic coatings. Journal of Paint Technology47:70–78.
Olayemi, J. Y., and A. A.Adeyeye. 1982. Some properties of polyvinyl acetate films cast from methanol, acetone and chloroform as solvent. Polymer Testing3:25–35.
Schreiber, H. P., and M. D.Croucher. 1980. Surface characteristics of solvent-cast polymers. Journal of Applied Polymer Science25:1961–68.
Schilling, M. R.1989. The glass transition of materials used in conservation. Studies in Conservation34:110–16.
Sears, J. K., and N. W.Touchette. Plasticizers. Encyclopedia of chemical technology, 3d ed. New York: John Wiley and Sons. 18:111.
Slade, P. E., Jr., and L. T.Jenkins. 1970. Thermal characterization techniques. New York: Marcel Dekker, Inc.32–35.
Struik, L.C.E.1978. Physical aging in amorphous polymers and other materials. New York: Elsevier. 1.
Tess, R. W.1985. Solvents. In Applied polymer science, ed.R. W.Tess and G. W.Pohlein. Washington, D.C.: American Chemical Society. 668–69.
Wilt, M., and R. F.Feller. 1990. Evaluation of cellulose ethers for conservation. Los Angeles: Getty Conservation Institute. 93–99.
ERIC F. HANSEN graduated from the University of California at Irvine in 1980 with an M.S. in organic chemistry and joined the Getty Conservation Institute in 1985. In his current position as an associate scientist he is pursuing his interests in the environmentally induced deterioration of synthetic and natural organic materials (including collagen, fibroin, and keratin), the conservation of ethnographic and archaeological objects, and the analysis of the effects of treatment parameters on the final physical and optical properties of treated objects. Address: Getty Conservation Institute, 4503 Glencoe Ave., Marina del Rey, Calif. 90292.
MICHELE R. DERRICK graduated from Oklahoma State University in 1979 with an M.S. in analytical chemistry. She joined the Getty Conservation Institute in 1983 and is currently an associate scientist. Her research involves the development of new methods for the characterization and identification of organic materials in cultural objects primarily using infrared spectroscopy and pyrolysis gas chromatography. Address: Getty Conservation Institute, 4503 Glencoe Ave., Marina del Rey, Calif. 90292.
MICHAEL R. SCHILLING graduated from California State Polytechnic University at Pomona in 1990 with an M.S. in chemistry. He joined the Getty Conservation Institute in 1983 and is currently an associate scientist. He specializes in thermal analysis research, the examination of painted surfaces, and instrumental analysis (gas chromatography-mass spectroscopy). Address: Getty Conservation Institute, 4503 Glencoe Ave., Marina del Rey, Caif. 90292.
RAFAEL GARCIA worked at the Getty Conservation Institute as a student assistant from 1987 to 1989 while pursuing undergraduate studies in chemistry at Loyola Marymount University. He received his B.S. in 1989 and is currently a graduate student in chemistry at California State University at Long Beach. Address: Getty Conservation Institute, 4503 Glencoe Ave., Marina del Rey, Calif. 90202.