Journal
POLYMER
Volume 167, Issue -, Pages 85-92Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2019.01.072
Keywords
Polymer particle; Hollow particle; Surface property; Surface sealing; Polymer interface
Categories
Funding
- Basic Science Research Program [NRF-2018R1D1A1B07043878]
- Ministry of Education (MOE)
- National Research Foundation of Korea (NRF)
- Energy Technology Development Project of the Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry & Energy, Republic of Korea [1711026557]
- National Research Council of Science & Technology (NST), Republic of Korea [JA190043] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We study thermal annealing-driven surface sealing of polymer hollow particles with a different surface property. Use of phase separation between polystyrene (PS) solid particles incorporated with sulfonate (-SO3-) group and decane allows their transformation into hollow particles with an opening on the surface. Control of the phase separation enables us to tune the structure (outer and inner diameters, and size of the opening) of the hollow particles. While thermally annealed at a temperature above T-g of the polymer, structural change of the hollow particles is experimentally observed and theoretically analyzed. The results demonstrate that the change in the surface property of the hollow particles due to the incorporation of the -SO3- group can have a direct impact on their sealing behavior and surface-sealed structure.
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