604 JOURNAL OF THE SOCIETY OF COSMETIC CHEglISTS Society of Cosmetic Chemists Award Sponsored by International Flavors and Fragrances, Inc. The 1971 Society of Cosmetic Chemists Award sponsored by Inter- national Flavors and Fragrances, Inc., has been presented to Dr. M. S. Christensen, Vick Chemical Co. Mrs. M.D. Lehman, Dr. E. J. Singer, and Dr. L. J. Vinson, all of Lever Brothers Co. and Mr. P. C. Wegmann, N.J. State Health Department, for their paper "Barrier Development, Ultrastructure, and Sulfhydryl Content of the Fetal Epidermis." The award, consisting of a scroll and a $1000 honorarium, is pre- sented annually to the author or authors of the most meritorious paper published in the JovRN^I• OF THE SOCIETY OF COSMETIC CHEMISTS, U.S.A. Formal presentation was made by the Society's President, Dr. Martin M. Rieger, at the May 25th luncheon session during the Society's Seminar in l,os Angeles, Calif. LeJt to right: Dr. Michael S. Christensen, Dr. Edward J. Singer, and the Society's President Dr. Martin M. Ricgcr

J. Soc. Cosmet. Chem., 23, 605-615 (September 14, 1972) Effect of Concentration of Plasticizer on the Water Vapor Transmission of Selected Film-Forming Agents* J. J. SCIARRA, Ph.D., and S. P. PATEL, M.S.t Presented December 29, 1971, American Association for the Advancement of Science, Philadelphia, Pa. Synopsis--Several different FILMS cast from solutions of ETHYL CELLULOSE or POLY- AMID RESIN were plasticized with varying concentrations of hexadecyl alcohol or tributyl citrate. Additional films were cast using a PLASTICIZER consisting of a combination of the above two materials. The •qATER VAPOR TRANSMISSION of each ooe these fihns was determined and expressed in milligrams o,f water vapor permeating through a fihn of 0.l-ram thickness per unit time (flux). From these values, the PERMEABILITY COEFFICIENT was calculated. The permeability coefficient of ethyl cellulose films was found to bc sub- stantially greater than that for films consisting of polyamid resin. It was also noted that the permeability coefficient was dependent upon the plasticizer used as well as its concentra- tion. Mixtures of plasticizers were found to have a varying effect upon this value depending- upon the nature of the fihn and the quantity of total plasticizer. INTRODUCTION Many different polymers have been used by the cosmetic chemist over a number of years for various purposes. The use of PVP/VA co- polymers in hair sprays as well as the use of poly•neric films for topical and * Abstracted in part from a thesis submitted by S. P. Patel to the Graduate Division, Col- lege of Pharmacy, St. John's University, in partial fulfillment of the requirements for the Master of Science Degree, June 1971. ? College of Pharmacy, St. John's University, Jamaica, N.Y. 11432. 605