Hydrophilic surface formation on polymers and its applications |
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| Institution: | 1. Thin Film Technology Research Center, Korea Institute of Science and Technology, P.O. Box 131, Cheongyang, 130-650, Seoul, Republic of Korea;2. Applied Physics Laboratory, Korea Institute of Science and Technology, P.O. Box 131, Cheongyang, 130-650, Seoul, Republic of Korea;3. Plasma and Ion Beam Company, Shinnae Technotown #405, 485, Sangbong-Dong, Jungrang-Gu, 131-221, Seoul, Republic of Korea;1. The Key Laboratory of Rare Earth Functional Materials and Applications, Zhoukou Normal University, Zhoukou 466001, PR China;2. College of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou 466001, PR China;1. Department of Orthopaedics, The Second Hospital, Jilin University, Changchun 130041, PR China;2. Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China;3. School of Pharmaceutical Sciences, Jilin University, Changchun 130021, PR China;4. Emergent Bioengineering Materials Research Team, RIKEN Center for Emergent Matter Science 2-1 Hirosawa, Wako-shi, Saitama 351-0198 Japan;5. Institute of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, PR China;1. Materials Science and Testing of Polymers, Montanuniversitaet Leoben, Otto Gloeckel-Strasse 2, 8700 Leoben, Austria;2. Polymer Competence Center Leoben GmbH, Roseggerstrasse 12, 8700 Leoben, Austria;3. Polymer Processing, Montanuniversitaet Leoben, Otto Gloeckel-Strasse 2, 8700 Leoben, Austria;1. National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Shanghai 200240, PR China;2. Key Laboratory of Shanghai Education Commission for Intelligent Interaction and Cognitive Engineering, Shanghai 200240, PR China;3. Collaborative Innovation Center of IFSA, Department of Micro/Nano-electronics, Shanghai Jiao Tong University, Shanghai 200240, PR China |
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| Abstract: | A new surface modification technique, so-called ion assisted reaction (IAR) has been developed at the Korea Institute of Science and Technology (KIST) Ion Beam Laboratory while modifying the surface of polymer results in many of industrial applications. The IAR, in which a keV ion beam is irradiated on the surface of polymer in reactive gases environment, has been developed for improving wettability of polymer surface and enhancing adhesion of other materials. The contact angles of water drops with modified polymers were significantly reduced by Ar+ ion irradiation with flowing oxygen gas environment than without flowing oxygen gas. Change of contact angles for the modified polymers was explained by a two-step chemical reaction among polymer matrix, energetic ions and oxygen gas. X-ray photoelectron analysis showed that hydrophilic groups were formed on the surface of polymers by chemical reaction between the unstable chains induced by ion irradiation and the oxygen gas, and the hydrophilic groups were identified as –(C–O)–, –(CO)– and –(CO)–O– bonds. The enhanced adhesion between metal and modified polymers was explained by the formation of charge transfer complex in polymer and electron donors in metal. Possible industrial applications of the IAR are to be discussed. |
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