Abstract
ABSTRACTA monoclinic δ‐clathrate form of syndiotactic polystyrene (s‐PS) with carvacrol (a relevant natural phenolic antimicrobial) has been prepared and characterized by X‐ray diffraction. Very informative are Fourier transform infrared spectra, in particular their OH stretching region that shows a narrow peak and a broad band, corresponding to carvacrol molecules being isolated guest of the co‐crystalline phase or dissolved in the amorphous phase, respectively. Analogous spectral features allow discriminating, for many different s‐PS guests, between molecules being in crystalline or in amorphous phases. s‐PS co‐crystalline films with carvacrol molecules being prevailingly (more than 90%) guest of the co‐crystalline phase have been prepared, even for high carvacrol content (up to 10–11 wt %). The location of most antimicrobial molecules in the crystalline phase assures a decrease of desorption diffusivity of two to three orders and hence long‐term antimicrobial release. © 2014 Wiley Periodicals, Inc. J. Polym. Sci. Part B: Polym. Phys. 2014, 52, 657–665
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Polymer Science Part B: Polymer Physics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
