Hydrogen bonding interactions, crystallization, and surface hydrophobicity in nanostructured epoxy/block copolymer blends

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dc.contributor.authorHameed, Nen_AU
dc.contributor.authorGuo, QPen_AU
dc.contributor.authorHanley, TLen_AU
dc.contributor.authorMai, YWen_AU
dc.date.accessioned2010-04-20T01:21:47Zen_AU
dc.date.accessioned2010-04-30T05:08:50Zen_AU
dc.date.available2010-04-20T01:21:47Zen_AU
dc.date.available2010-04-30T05:08:50Zen_AU
dc.date.issued2010-04-01en_AU
dc.date.statistics2010-04-01en_AU
dc.description.abstractHydrogen bonding interactions, phase behavior, crystallization, and surface hydrophobicity in nanostructured blend of bisphenol A-type epoxy resin (ER), for example, diglycidyl ether of bisphenol A (DGEBA) and poly(-caprolactone)-block-poly(dimethyl siloxane)-block-poly(-caprolactone) (PCL-PDMS-PCL) triblock copolymer were investigated by Fourier transform infrared (FTIR) spectroscopy, differential scanning calorimetry, transmission electron microscopy, small-angle X-ray scattering, and contact angle measurements. The PCL-PDMS-PCL triblock copolymer consisted of two epoxy-miscible PCL blocks and an epoxy-immiscible PDMS block. The cured ER/PCL-PDMS-PCL blends showed composition-dependent nanostructures from spherical and worm-like microdomains to lamellar morphology. FTIR study revealed the existence of hydrogen bonding interactions between the PCL blocks and the cured epoxy, which was responsible for their miscibility. The overall crystallization rate of the PCL blocks in the blend decreased remarkably with increasing ER content, whereas the melting point was slightly depressed in the blends. The surface hydrophobicity of the cured ER increased upon addition of the block copolymer, whereas the surface free energy (γs) values decreased with increasing block copolymer concentration. The hydrophilicity of the epoxy could be reduced through blending with the PCL-PDMS-PCL block copolymer that contained a hydrophobic PDMS block. © 2010, Wiley-Blackwell.en_AU
dc.identifier.citationHameed, N., Guo, Q. P., Hanley, T., & Mai, Y. W. (2010). Hydrogen bonding interactions, crystallization, and surface hydrophobicity in nanostructured epoxy/block copolymer blends. Journal of Polymer Science Part B: Polymer Physics, 48(7), 790-800. doi:10.1002/polb.21950en_AU
dc.identifier.govdoc1569en_AU
dc.identifier.issn0887-6266en_AU
dc.identifier.issue7en_AU
dc.identifier.journaltitleJournal of Polymer Science Part B: Polymer Physicsen_AU
dc.identifier.pagination790-800en_AU
dc.identifier.urihttp://dx.doi.org/10.1002/polb.21950en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3238en_AU
dc.identifier.volume48en_AU
dc.language.isoenen_AU
dc.publisherWiley-Blackwellen_AU
dc.subjectCrystallizationen_AU
dc.subjectEpoxidesen_AU
dc.subjectCopolymersen_AU
dc.subjectHydrogenen_AU
dc.subjectBondingen_AU
dc.subjectMixingen_AU
dc.titleHydrogen bonding interactions, crystallization, and surface hydrophobicity in nanostructured epoxy/block copolymer blendsen_AU
dc.typeJournal Articleen_AU
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