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Polymer Bulletin
Published in: Polymer Bulletin 7/2013

01-07-2013 | Original Paper

Thermal, mechanical, and rheological properties of poly(propylene carbonate) cross-linked with polyaryl polymethylene isocyanate

Authors: Yanping Hao, Huanhuan Ge, Lijing Han, Hongyu Liang, Huiliang Zhang, Lisong Dong

Published in: Polymer Bulletin | Issue 7/2013

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Abstract

In this study, cross-linked poly(propylene carbonate) (PPC) was prepared using polyaryl polymethylene isocyanate (PAPI) as a cross-linking agent. The gel content, thermal behaviors, mechanical and rheological properties of the cross-linked PPC were investigated. FTIR results showed that the chemical reactions took place between PPC and PAPI and the interactions demonstrated that PPC may be cross-linked with the PAPI. The results of gel content revealed that PPC was partially cross-linked with the PAPI. The cross-linked PPC showed higher glass transition temperature and decomposition temperature compared with pure PPC. Accordingly, the melt flow index gradually decreased and complex viscosity increased with increasing PAPI content. Moreover, the mechanical properties proved also to be enhanced as evidenced by tensile tests. The introduction of small amount of cross-linkable moiety provides an efficient and convenient method to improve the properties of PPC and extend its application area.
previous article Non-isothermal crystallization kinetics of polypropylene/MAP-POSS nanocomposites
next article Determination of the effect of pressure on viscosity of an isotactic polypropylene

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Metadata
Title
Thermal, mechanical, and rheological properties of poly(propylene carbonate) cross-linked with polyaryl polymethylene isocyanate
Authors
Yanping Hao
Huanhuan Ge
Lijing Han
Hongyu Liang
Huiliang Zhang
Lisong Dong
Publication date
01-07-2013
Publisher
Springer-Verlag
Published in
Polymer Bulletin / Issue 7/2013
Print ISSN: 0170-0839
Electronic ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-013-0912-5

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