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제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Co-oligomerization Reactions of 2,5-Dibromo-1,1-diisopropyl (or dihexyl)-3,4-diphenylsiloles with 4,4'-(Hexafluoroisopropylidene)diphenol (or Bisphenol A or 4,4'-Biphenol) and their Characterizations

등록일
2019년 8월 20일 15시 29분 06초
접수번호
0521
발표코드
POLY.P-14 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 18일 (금요일) 11:00~12:30
발표형식
포스터
발표분야
Polymer Chemistry
저자 및
공동저자
Jong Wook Lim, Young Tae Park1,*
Keimyung University, Korea
1Department of Chemistry, Keimyung University, Korea
2,5-Dibromo-1,1-diisopropyl(or dihexyl)-3,4-diphenyl-siloles were prepared by reactions of diisopropyl (or dihexyl)-bis(phenylethynyl)silanes with lithium naphthalenide, anhydrous ZnCl2, and N-bromosuccinimide (NBS), respectively. Co-oligomerizations of the prepared silole derivatives with 4,4’-(hexafluoroiso-propylidene)diphenol, bisphenol A, and 4,4'-biphenol as co-monomers were carried out by the nucleophilic substitution reactions of two bromine groups in the presence of potassium carbonate under the co-solvent of N-methyl-2-pyrrolidinone (NMP) and toluene with Dean-Stark trap. The crude product was purified by extraction using the solvents of dichloromethane and washed with deionized water. The product materials were characterized by 1H, 13C, and 29Si NMR as well as GPC. We also studied the photoelectronic properties by UV-vis absorption, excitation, and fluorescence emission spectroscopic methods, in particular, along with electrochemical properties. Acknowledgment. This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) grant funded by the Ministry of Education of the Republic of Korea  (NRF-2017R1D1A3B03028014).

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