XRD, FTIR and 13C CP/MAS NMR Studies of Composite Comprising Poly(vinyl acetate)-Silylated Si-MCM-41

Katun, M. Nasir; Nurul, Izza Taib; Salasiah, Endud

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Paper Title:

XRD, FTIR and ¹³C CP/MAS NMR Studies of Composite Comprising Poly(vinyl acetate)-Silylated Si-MCM-41

Periodical	Advanced Materials Research (Volume 364)
Main Theme	Nanomaterials
Edited by	Zainal Arifin Ahmad, Muhd Ambar Yarmo, Fauziah Haji Abdul Aziz, Meor Yusoff Meor Sulaiman, Badrol Ahmad, Khairul Nizar Ismail, Abdul Rashid Jamaludin, Muhd. Azwadi Sulaiman and Mohd Fariz Ab Rahman
Pages	159-163
DOI	10.4028/www.scientific.net/AMR.364.159
Citation	Izza Taib Nurul et al., 2011, Advanced Materials Research, 364, 159
Online since	October, 2011
Authors	Izza Taib Nurul, Endud Salasiah, M. Nasir Katun
Keywords	Composite, MCM-41, Poly (Vinyl Acetate), Silylated, Spectroscopy
Price	US$ 28,-

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Abstract

A composite structure based on silylated MCM-41 and Poly (vinyl acetate) (PVAc) was synthesized via solution intercalation. Poly (vinyl acetate)-silylated Si-MCM-41 composite were characterized by XRD, FTIR spectroscopy and ¹³C CP/MAS NMR in order to determine the compatibility between PVAc and the silicate host. XRD study reveals that the framework of silylated Si-MCM-41 was not altered upon incorporation of PVAc. FTIR study showed that characteristic peak assigned to carbonyl group in PVAc was observed around 1741.6 cm^-1 for all the composites indicating the presence of PVAc in the silylated Si-MCM-41. ¹³C CP/MAS NMR showed the increase of line width of the peak assigned to C=O carbonyl group indicating the increase in randomness of polymer chains in confined space. The shifting of the C=O carbonyl groups is a sign of the change in chemical environment of the carbonyl owing to the interaction of PVAc with the silica matrix of silylated Si-MCM-41.