期刊
ACS APPLIED MATERIALS & INTERFACES
卷 4, 期 11, 页码 5949-5955出版社
AMER CHEMICAL SOC
DOI: 10.1021/am301597b
关键词
poly[oligo(ethylene oxide) methacrylate]; star polymers; surface modification; cross-linkable polymers; UV-patternable polymers; temperature-responsive surface
资金
- National Research Foundation
- Korea government (MEST) through the Active Polymer Center for Pattern Integration [R11-2007-050-00000-0]
- World Class University program through the Korea Science and Engineering Foundation
- Ministry of Education, Science and Technology [R33-2008-000-10035-0]
- National Science Foundation [DMR 09-69301]
- Ministry of Education, Science & Technology (MoST), Republic of Korea [R33-2008-000-10035-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [969301] Funding Source: National Science Foundation
Temperature-responsive photo-cross-linkable poly[oligo(ethylene oxide) monomethyl ether methacrylate] (POEOMA)-based star polymers were synthesized by atom transfer radical polymerization (ATRP), for the modification of silicon (Si) wafer surfaces. The polymers showed a lower critical solution temperature (LCST) behavior in aqueous media. The polymers were modified with benzophenone (Bzp) functional groups that were utilized in UV-triggered (lambda = 365 nm) cross-linking reactions for the preparation of polymer networks. The star polymers were deposited onto the surfaces of Si wafers by spin coating, and stable polymer films were formed by simple UV irradiation. The stability of thermoresponsive cross-linked polymer films deposited on the Si wafer was confirmed by changing their hydrophilicity by changing the temperature of the environment. In addition, the POEOMA-based star polymers could be utilized for the preparation of photolithography-patterned surfaces. The successful formation of uniform stable polymeric films indicates that Bzp-functionalized POEOMA star polymers can be used for a simple Si surface modification.
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