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An effective tool to characterize adhesion at the interface of binary polymer blends: a free volume study
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Jaya Madhu Raj
Published/Copyright:
August 9, 2011
Abstract
In this work, an effective method of characterizing the adhesion at the interface of partially miscible and immiscible binary polymer is used. Three polymer blends namely PS/PMMA, PP/NBR and PVC/SAN were irradiated with e-beam and microwaves, in order to bring about interfacial modification, and were characterized in terms of free volume measured by Positron Lifetime technique. The changes in free volume parameters upon e-beam and microwave irradiation on the two systems clearly shows improved interaction between the blend constituents as a result of cross-linking through hydrogen bond formation. However, the extent of interfacial modification brought in at different weight compositions is not forthcoming. Therefore, the hydrodynamic interaction parameter α, which accounts for friction at the interface between the dissimilar chains of the blend constituents, is evaluated from the very same free volume data. Since α represents the strength of hydrodynamic interaction, it could be taken as an indicator of the adhesion strength at the interface. Present results showed that both e-beam and microwave irradiations can be used to stabilize the interfaces in binary polymer blends as evidenced by hydrodynamic interaction.
Published Online: 2011-08-09
Published Online: 2011-07-08
Published in Print: 2011-07-01
©2011 by Walter de Gruyter Berlin Boston
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Keywords for this article
free volume;
hydrodynamic interaction;
interfaces;
irradiation;
polymer blends
Articles in the same Issue
- Original Articles
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- Complex permittivity measurements of RF plasma polymerized polyterpenol organic thin films employing split post dielectric resonator
- Fluctuation-induced forces in critical crosslinked polymer blends
- Chemical and physical properties of self-crosslinked poly(vinyl chloride)/nitrile rubber nanocomposites prepared by melt-mixing process
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- Characterization of interfacial adhesion in binary polymer blends: a new approach based on positron lifetime study
- Microwave-assisted ionic liquid phase synthesis of phthalonitrile polymers
- Nano- and microcomplexes of biopolymer carrageenans and dodecylammonium chloride
- Performance enhancement of polysulfone ultrafiltration membrane by blending with polyurethane hydrophilic polymer
- Electrostrictive polymer composite for energy harvesters and actuators
- Dynamic mechanical behavior of phenoxy/carbon nanotube composites: assessment through different functionalization
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- Synthesis and characterization of modified poly(methyl methacrylate)/Al2O3nanocomposites as denture resins
- A study on the potential of NCF thermoplastic composites for use in aeronautic structural applications
- Electromagnetic response of polymer composites with quasi-spherical nanocarbon inclusions: theory below the percolation threshold
- Processing and characterization of titanium dioxide composites from vegetable oil resource
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