degradability enhancement of poly(lactic acid) by stearate-zn3al ldh nanolayers降解性增强的聚(乳酸)stearate-zn3al ldh nanolayers.pdfVIP

Int. J. Mol. Sci. 2012, 13, 7938-7951; doi:10.3390/ijm OPEN ACCESS International Journal of Molecular Sciences ISSN 1422-0067 /journal/ijms Article Degradability Enhancement of Poly(Lactic Acid) by Stearate-Zn Al LDH Nanolayers 3 Mahboobeh Eili 1,*, Kamyar Shameli 1, Nor Azowa Ibrahim 1,* and Wan Md Zin Wan Yunus 2 1 Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia; E-Mail: kamyarshameli@ 2 Department of Chemistry, Centre for Defence Foundation Studies, National Defence University of Malaysia, Kuala Lumpur 57000, Malaysia; E-Mail: wanmdzin@.my * Authors to whom correspondence should be addressed; E-Mails: m_eili@ (M.E.); norazowa@.my (N.A.I.); Tel.: +603-8946-6808 (N.A.I.); Fax: +603-8943-5380 (N.A.I.). Received: 10 April 2012 ; in revised form: 23 May 2012 / Accepted: 13 June 2012 / Published: 26 June 2012 Abstract: Recent environmental problems and societal concerns associated with the disposal of petroleum based plastics throughout the world have triggered renewed efforts to develop new biodegradable products compatible with our environment. This article describes the preparation, characterization and biodegradation study of poly(lactic acid)/layered double hydroxide (PLA/LDH) nanocomposites from PLA and stearate-Zn3Al LDH. A solution casting meth