Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 84: Issue 2
Structure and thermal properties of exfoliated PVC/layered silicate nanocomposites via in situ polymerization
Authors:
D.-Y. Yang Huazhong University of Science and Technology Department of Chemistry Wuhan China 430074 Wuhan China 430074

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Q.-X. Liu Huazhong University of Science and Technology Department of Chemistry Wuhan China 430074 Wuhan China 430074

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X.-L. Xie Huazhong University of Science and Technology Department of Chemistry Wuhan China 430074 Wuhan China 430074

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F.-D. Zeng Huazhong University of Science and Technology Department of Chemistry Wuhan China 430074 Wuhan China 430074

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Pages:
355–359
Online Publication Date:
19 Sep 2005
Publication Date:
01 May 2006
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-005-6936-9
Keywords:
exfoliation; in situ intercalated polymerization; montmorillonite; poly(vinyl chloride); thermal properties
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Abstract  

The exfoliated poly(vinyl chloride) (PVC)/montmorillonite (MMT) nanocomposites were synthesized by in situ intercalated polymerization of vinyl chloride (VC) in the presence of organic-intercalated montmorillonite (OMMT). Their structures and thermal properties were characterized. The results showed that layered silicates are well exfoliated and uniformly distributed in PVC matrix during in situ intercalated polymerization of VC in the presence of OMMT. The glass transition temperatures of PVC phases in the PVC/MMT nanocomposites are all lower than that of pristine PVC due to the incorporation of the exfoliated silicate layers in PVC matrix. The 5% mass loss temperature (T5%), the dehydrochlorination temperature (Tmax1) of the PVC matrix decreased due to the free and interlayer water in MMT, the low thermal stability, and the enhanced dehydrochlorination of the PVC matrix by alkyl ammonium pre-treated MMT. However, the thermal decomposition temperature of the dehydrochlorinated PVC (Tmax2) and char at 600C are slightly increased in the presence of silicate layers.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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