Please use this identifier to cite or link to this item:
|Title:||Energy-damping behaviors of poly(methyl acrylate-co-divinylbenzene) microspheres coated with a porous nickel-phosphorus layer|
Poly(methyl acrylate-co-divinyl benzene)
Ultrasonic wave attenuation
|Citation:||Ng, Y.H., Hong, L. (2004-07-15). Energy-damping behaviors of poly(methyl acrylate-co-divinylbenzene) microspheres coated with a porous nickel-phosphorus layer. Journal of Polymer Science, Part B: Polymer Physics 42 (14) : 2710-2723. ScholarBank@NUS Repository. https://doi.org/10.1002/polb.20145|
|Abstract:||Hybrid microspheres of poly(methyl acrylate-co-divinylbenzene) (PMADVB) with a thin and porous nickel-phosphorus (Ni-P) alloy layer were prepared via suspension polymerization and electroless nickel plating. The characterization of pristine and nickel-coated microspheres was carried out with a differential scanning calorimeter and a scanning electron spectroscope equipped with an energy-dispersive system. The glass-transition range of Ni-P-coated PMADVB was broadened and extended in the higher temperature direction. This effect allowed the PMADVB network to embrace more diversified energy states of the segment motion, this being a desired feature for damping sound waves. The low-frequency (100-1000-Hz) sound absorption behavior of the microspheres was tested with a sound attenuation kit. Besides the testing of their low-frequency damping performance, an investigation into the ultrasonic-wave (∼35 kHz) absorption feature of the microspheres was conducted through chemical means; that is, the attenuation to the ultrasonic wave with respect to the unprotective situation was assessed through the chemisorption extent of copper ions on a biomass adsorbent. The Ni-P deposition layer was found to augment the damping capacity of the polymer network. The alloy layer was determined to cause an expansion of the glass-transition range of PMADVB and its wave-scattering capability because this layer was made up of submicrometer metallic grains. In this work, the particulars of the metal-polymer interactions were associated with a core-shell structure. The metal outer layer was thought to create a spherical temperature field inside the PMADVB network, and concerted motions of the polymer segments resulted. © 2004 Wiley Periodicals, Inc.|
|Source Title:||Journal of Polymer Science, Part B: Polymer Physics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Dec 12, 2018
WEB OF SCIENCETM
checked on Dec 4, 2018
checked on Oct 13, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.