CONTROLLED-RELEASE OF PERFUMES FROM POLYMERS .2. INCORPORATION AND RELEASE OF ESSENTIAL OILS FROM GLASSY-POLYMERS

Authors
PEPPAS NA ENDE DJA
Citation
Na. Peppas et Dja. Ende, CONTROLLED-RELEASE OF PERFUMES FROM POLYMERS .2. INCORPORATION AND RELEASE OF ESSENTIAL OILS FROM GLASSY-POLYMERS, Journal of applied polymer science, 66(3), 1997, pp. 509-513
Citations number
18
Categorie Soggetti
Polymer Sciences
Journal title
Journal of applied polymer science → ACNP
ISSN journal
00218995
Volume
66
Issue
3
Year of publication
1997
Pages
509 - 513
Database
ISI
SICI code
0021-8995(1997)66:3<509:COPFP.>2.0.ZU;2-G
Abstract
Release of essential oils from glassy hydrophilic copolymers of 2-hydr oxyethylmethacrylate (HEMA) and ethylene glycol dimethacrylate (EGDMA) was studied in a range of releasing media at 30 degrees C. The releas e of carvone, limonene, and eugenol was investigated using swelling-co ntrolled release systems based on these copolymers. By changing the cr osslinking ratio of the copolymers it was possible to achieve zero-ord er release. The amount of essential oil release was correlated to the thermodynamic compatibility of the oil-polymer pair, as judged by the solubility parameter difference. (C) 1997 John Wiley & Sons, Inc.