« Previous Abstract[Method of determining residues of a synthetic insecticide attractant in environmental objects]    Next Abstract"The iconic cactus of the Caatinga dry forest, Cereus jamacaru (Cactaceae) has high sphingophily specialization and pollinator dependence" »

J Phys Chem A

Title:		Interactions of volatile organic compounds with syndiotactic polystyrene crystalline nanocavities
Author(s):		Albunia AR; Oliva P; Grassi A;
Address:		"Dipartimento di Chimica, INSTM and NANOMATES Research Unit, Universita di Salerno, Via Ponte don Mellilo, 84084 Fisciano (SA), Italy. aalbunia@unisa.it"
Journal Title:		J Phys Chem A
Year:		2011
Volume:		20101217
Issue:		4
Page Number:		443 - 452
DOI:		10.1021/jp1090608
ISSN/ISBN:		1520-5215 (Electronic) 1089-5639 (Linking)
Abstract:		"The interaction of some volatile organic compounds, namely, 1,2-dichloroethane, 1,2-dibromoethane, and 1,1,2,2-tetrachloroethane, included in the delta crystalline phase of syndiotactic polystyrene (sPS) has been studied in terms of conformation, orientation, and dynamical behavior. By combination of X-ray diffraction (XRD), Fourier-transform infrared (FTIR), and solid-state (2)H NMR analyses, it has been shown that despite the differences in guest molecular properties (mass, boiling temperature, and volume), stable sPS/guest delta-clathrate cocrystals are formed since the nanoporous delta crystalline form has a flexible structure able to adapt itself to the guest molecule. As a consequence of inclusion, it has been shown that the guest diffusivity is strongly reduced and the dynamical processes are constrained, particularly when these guests are in trans conformation. This suggests the nanoporous sPS delta form to be an efficient tool for water and air purification through volatile organic compound absorption"
Keywords:
Notes:		"PubMed-not-MEDLINEAlbunia, Alexandra R Oliva, Patrizia Grassi, Alfonso eng 2010/12/21 J Phys Chem A. 2011 Feb 3; 115(4):443-52. doi: 10.1021/jp1090608. Epub 2010 Dec 17"