Preparation of poly(vinyl alcohol)/kaolinite nanocomposites via in situ polymerization

Journal Article · Tue Mar 04 04:00:00 EST 2008 · Materials Research Bulletin

OSTI ID:21068217

Xin, Jia ^[1]; Bo, Zhang; Qiong, Cheng; Shujiang, Zhang ^[1]

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1. State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Institute of Biochemical Engineering and Environmental Technology, Lanzhou University, Lanzhou 730000 (China)

Poly(vinyl alcohol)/kaolinite intercalated nanocomposites (Kao-PVA) were prepared via in situ intercalation radical polymerization. Vinyl acetate (VAc) was intercalated into kaolinite by a displacement method using dimethyl sulfoxide/kaolinite (Kao-DMSO) as the intermediate. Then, PVAc/kaolinite (Kao-PVAc) was obtained via radical polymerization with benzoyl peroxide (BPO) as initiator. Last, PVAc/kaolinite was saponified via direct-hydrolysis with NaOH solution in order to obtain PVA/kaolinite nanocomposites, which was characterized by Fourier-Transformation spectroscopy (FTIR), wide X-ray diffraction (WXRD) and transmission electron microscopy (TEM). Their differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) results of the obtained PVA/kaolinite suggested that the thermal properties had an obvious improvement.

• OSTI ID: 21068217
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 3 Vol. 43; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BENZOYL PEROXIDE
CALORIMETRY
COMPOSITE MATERIALS
DMSO
FOURIER TRANSFORMATION
HYDROLYSIS
INFRARED SPECTRA
KAOLINITE
NANOSTRUCTURES
POLYMERIZATION
PVA
RADICALS
SODIUM HYDROXIDES
SPECTROSCOPY
THERMAL GRAVIMETRIC ANALYSIS
THERMODYNAMIC PROPERTIES
TRANSMISSION ELECTRON MICROSCOPY
VINYL ACETATE
X-RAY DIFFRACTION