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6,6-Dichlorobicyclo[3, 1, 0]hexane-3-carboxylic acid의 합성과 분석
이광수,양재건,Lee, Kwang-Soo,Yang, Jae-Kun 한국분석과학회 2001 분석과학 Vol.14 No.1
6,6-Dichlorobicyclo[3, 1, 0]hexane-3carboxylic acid was synthesized by dichlorocarbene addition into 3-cyclopentenecarboxylic acid using BTEA.Cl as phase transfer catalyst. $^1H$ NMR $^{13}C$ NMR data analyst showed that this compound had boat-like conformation and carboxyl group existed as trans form. 6,6-Dichlorobicyclo[3, 1, 0]hexane-3carboxylic acid를 phase transfer catalyst(PTC)로 benzyl triethylamine chloride(BTEA.Cl)를 사용하여 3-cyclopentenecarboxylic acid로부터 합성하였다. $^1H$ NMR과 $^{13}C$ NMR 분석을 통하여 이 화합물은 boat-like conformation을 갖는 것으로 나타났고 carboxyl group은 trans로 존재하는 것으로 나타났다.
Siloxane-Epoxy(s) Copolymer合成에 관한 硏究
梁在乾,韓貞璉,裵長淳 단국대학교 1981 論文集 Vol.15 No.-
Oligosiloxane prepared which has moleculae weight 900∼1,000 was prepared from O.M.C.S. and epoxy(S) resine was prepared from pisphenol(S) and epichlorohydrin. The siloxane-epoxy(S) copolymer was synthesized through the copolymerization of oligosiloxane and epoxy(S) resine under alkaline acetone solution at 50∼55℃ for 5 hours. Thermal properties of epoxy(S) resine and siloxane-epoxy(S) copolymer was measured by thermogravimetric analysis, copolymer with 8.2% silicon content had the higher degradation temperature 300℃ than epoxy(S) reine which degradation at 250℃.
Silicone처리 纖維에 관한 硏究 : 水酸基를 갖고 있는 纖維의 개질을 중심으로
梁在乾,韓貞璉,姜斗煥 단국대학교 1980 論文集 Vol.14 No.-
The reactivity of hydroxyl group on PVA film, cotton, and silk with alkoxysilane and acetoxysilane was investigated. The reactivity of hydroxyl group on PVA film was increased in the order of Q_m>T_m>D_m and Q_a>T_a>D_a, and the complex treating agents such as D_m/T_m, D_m/O_m, D_a/T_a, D_a/Q_a to cotton and silk fabrics had superior effect to the simple one, such as D_m, T_m, Q_m, D_a, T_a, Q_a. Silicone contents per square centimeter of sample which has water repellency was 0.1㎎ above in PVA film, and 0.2㎎ above in the fabrics. The reaction was completly carried out under the 150∼170℃.
2-아다만틸 誘導體의 加溶媒反應機構에 관한 硏究 : 토실化 아다만틸의 아세토니트릴에서의 N₃^-와의 反應메카니즘
梁在乾 단국대학교 1976 論文集 Vol.10 No.-
Substitution reaction of 2-adamantyl tosylate with azide ion in Acetonitrile was investigated. The products from this reaction are 2-(2-adamantyl)-5-methyltetrazole and 2-adamantyl azide which are similar from the earlier reported reaction from 1-adamantyl tosylate, produce yield of 1.2-1.8% for 2-adamantyl azide was the amount well below from what was expected. Well established trend was that the amount of the minor product, alkylazide from both reactions, should be about same, although 2-adamantyl and 1-adamantyl derivatives produce, secondary and tertiory carbonium ion respectively. The experimental results was discussed in terms of reactivity of those carbonium ions and competiton of acetonitrile (solvent) and azide ion for these carbonium ions.
P-phenylene-Bis-Dimethyl Silanol의 合成과 物性에 관한 硏究
梁在乾 단국대학교 1983 論文集 Vol.17 No.-
p-phenylene-bis-dimethyl silanol prepared from p-phenylene-bis-dimethyl chlorosilane which was synthesized from p-dibromo benzene and dimethyl dichorosilane. The polydiethyl siloxane was prepared from diethyldichloro silane with common method(Andrianov. K.A) The copolymer was synthesized through the copolymerization of p-phenylene-bis-dimethyl silanol and polydimethyl siloxane which has molecular weight 900―1,000 under the catalyse of tetramethyl guanidine-di-2-ethyl hexoate at 100―110℃ for 7-hours. Thermal properties of the copolymer which prepared this research was measured by thermgravimetric analysis more higher degradation temperature 370℃ than common siloxane resine which degradation at 260―300℃.