화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.21, No.11, 1274-1280, November, 2013
DOI10.1007/s13233-013-1175-6  Export Citation
Preparation of microporous polymers consisting of tetraphenylethene and alkyne units
Hyunpyo Lee, Hyun Woo Park, and Ji Young Chang†
  • Department of Materials Science and Engineering, College of Engineering, Seoul National University, Seoul, 151-744, Korea
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We prepared tetraphenylethene (TPE)-based microporous polymers TPE-DB, TPE-TB, and TPE-AD by Sonogashira-Hagihara cross-coupling reaction of tetrakis(4-iodophenyl)ethene with 1,4-diethynylbenzene (DB), 1,3,5-triethynylbenzene (TB), and tetrakis(4-ethynylphenyl)adamantane (AD), respectively. Polymers TPE-DB/TB(1:2) and TPE-DB/TB(3:2) having two different ethynyl units were also obtained by using mixtures of 1,4-diethynylbenzene and 1,3,5-triethynylbenzene in molar ratios of 1: 3 and 1: 1, respectively, for the coupling reaction. The polymers were isolated as aggregated particles. The Brunauer-Emmett-Teller (BET) surface areas of the polymers were dependent on the structures of the ethynylbenzenes. Among the polymers with one type of ethynyl unit, TPETB showed the highest BET surface area of 1,231 m2/g, followed by TPE-DB (404 m2/g) and TPE-AD (615 m2/g). TPE-DB/TB(3:2) with two different ethynyl units exhibited a considerably enhanced BET surface area of 1,835 m2/g compared with TPE-DB and TPE-TB, suggesting the significant change in the polymer microstructure. The polymers except TPE-DB showed CO2 and H2 uptakes over 40 and 100 cm3/g, respectively.
Keywords:microporous polymers;Sonogashira-Hagihara coupling;tetraphenylethene;hydrogen uptake
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