지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
In this study, we proposed to synthesize thermally stable, soluble and conjugated Schiff base polymer (SbP). For this reason, a specific molecule namely 4,4"-thiodiphenol which has sulfur and oxygen bridge in its structure was used to synthesize bi-functional monomers. Bi-functional amino and carbonyl monomers namely 4,4"-[thio-bis(4,1-phenyleneoxy)] dianiline (DIA) and 4,4"-[thiobis(4,1-phenyleneoxy)]dibenzaldehyde (DIB) were prepared from the elimination reaction of 4,4"-thiodiphenol with 4-iodonitrobenzene and 4-iodobenzaldehyde, respectively. The structures of products were confirmed by elemental analysis, FTIR, <SUP>1</SUP>H NMR and <SUP>13</SUP>C NMR techniques. The molecular weight distribution parameters of SbP were determined by size exclusion chromatography (SEC). The synthesized SbP was characterized by solubility tests, TG-DTA and DSC. Also, conductivity values of SbP and SbP-iodine complex were determined from their solid conductivity measurements. The conductivity measurements of doped and undoped SbP were carried out by Keithley 2400 electrometer at room temperature and atmospheric pressure, which were calculated via fourpoint probe technique. When iodine was used as a doping agent, the conductivity of SbP was observed to be increased. Optical band gap (E<SUB>g</SUB>) of SbP was also calculated by using UV-Vis spectroscopy. It should be stressed that SbP was a semiconductor which had a potential in electronic and optoelectronic applications, with fairly low band gap. SbP was found to be thermally stable up to 300℃. The char of SbP was observed 29.86% at 1000℃.
목차
Abstract
Introduction
Experimental
Results and Discussion
Conclusions
References
참고문헌 (36)
참고문헌 신청
1. [학술지(정기간행물)] - R. Adams / 1923 / / J. Am. Chem. Soc 45 : 521 ~
2. [학술지(정기간행물)] - S. K. Menon / 2000 / / Rev. Anal. Chem 19 : 361 ~
3. [학술지(정기간행물)] - M. Grigoras / 2001 / / Revue Roumaine de Chimie 46 : 927 ~
4. [학술지(정기간행물)] - C. Simionescu / 2000 / / Materiale Plastice 37 : 42 ~
5. [학술지(정기간행물)] - P. K. Dutta / 2003 / / Eur. Polym. J 39 : 1007 ~
2. [학술지(정기간행물)] - S. K. Menon / 2000 / / Rev. Anal. Chem 19 : 361 ~
3. [학술지(정기간행물)] - M. Grigoras / 2001 / / Revue Roumaine de Chimie 46 : 927 ~
4. [학술지(정기간행물)] - C. Simionescu / 2000 / / Materiale Plastice 37 : 42 ~
5. [학술지(정기간행물)] - P. K. Dutta / 2003 / / Eur. Polym. J 39 : 1007 ~
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UCI(KEPA) : I410-ECN-0101-2016-578-001641301