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전창림,박상복,박내정,염성배 ( Chang Lim Jun,Sang Bok Park,Nae Joung Park,Sung Bai Yum ) 한국공업화학회 1992 공업화학 Vol.3 No.4
Palladium 촉매에 의한 CO Insertion Heck reaction을 고분자 중합에 응용하여 가공성이 좋은 고강도 엔지니어링 플라스틱으로 응용 가능한 flexible spacer를 가진 aromatic polyamide와 polyester를 합성할 수 있었다. 촉매로서 dichlorobis(triphenyl phosphine) plladium(II) (PdCl_2(PPh_3)_2)와 Palladium chloride(PdCl_2)를 사용하였고, 이 중합 시스템은 똑같은 조건에서 polyamide와 polyester를 합성할 수 있는 장점이 있으므로 그 중합체의 열적성질을 DSC, TGA 등으로 조사하였는데 곁사슬이 있지 않은 aromatic polyamide와 polyester는 amide와 ester 결합의 차이에도 불구하고 전이온도등이 거의 같았다. Hexyl부터 hexadecyl까지 alkyl 곁사슬을 2,5 위치에 이중으로 가진 phenylene dibromide와 phenylene diamine으로부터 중합체를 합성하였는데 치환기가 없는 경우에 비하여 전이온도가 감소하였고, alkyl side chain이 hexadecyl인 경우는 뚜렷한 융점을 확인할 수 있었다. Aromatic polyamides and polyesters with fexible spacers are prepared by Heck reaction with palladium catalysts in presence of carbon monoxide gas. Dichlorobis(triphenyl phosphine) plladium(II) (PdCl_2(PPh_3)_2) and palladium chloride (PbCl_2) are used as catalysts. Polyamides and polyesters prepared by his polymerization system have similar transition temperatures. Flexible spacer substituted on phenylene units are varied from hexyl to hexadecyl, the length of spacers effected on transition temperatures of substituted polymers.
포스파젠 고분자를 이용한 Wittig 반응에 관한 연구
권석기,전창림 ( Suk Ky Kwon,Chang Lim Jun ) 한국공업화학회 1994 공업화학 Vol.5 No.5
[NP(OC_6H_5)_(1.7)(OC_6H₄P(Ph)₂=CHCH₂CH₂CH₃)_(0.3)]_n과 같은 포스파젠 고분자에 부착된 Wittlg 시약을 [NP(OC_6H_5)_(1.7)(OC_6H₄Br)_(0.3)]_n에 n-butyllithium, diphenylchlorophosphine, 그리고 n-butyl iodide 등으로 처리하여 만들었다. 고분자의 반응들은 [NP(OC_6H_5)_5(OC_6H₄P(Ph)₂)]와 같은 고리형 삼중체를 이용한 모델반응 조건들을 고려해 이루어졌다. 포스파젠 고분자에 부착된 Wittig 시약과 benzophenone을 반응시켜 원하는 알켄과 고분자에 부착된 phosphine oxide를 성공적으로 만들었다. Polyphosphazene-bound Wittig reagents such as [NP(OC_6H_5)_(1.7)(OC_6H₄P(Ph)₂=CHCH₂CH₂CH₃)_(0.3)]_n were synthesized by treating [NP(OC_6H_5)_(1.7)(OC_6H₄Br)_(0.3)]_n with n-butyllithium, diphenylchlorophosphine, and n-butyl iodide. Polymeric reactions were carried out according to the reaction conditions with cyclic trimers such as [N₃P₃(OC_6H_5)_5(OC_6H₄P(Ph)₂)]. The desired alkene and polymer-bound phosphine oxide were prepared successfully by the reaction of polyphosphazene-bound Wittig reagents with benzophenone.
Studies on Polyphosphazenes-bound Wittig Reactions
권석기,전창림,Kwon, Suk-Ky,Jun, Chang-Lim The Korean Society of Industrial and Engineering C 1994 공업화학 Vol.5 No.5
$[NP(OC_6H_5)_{1.7}(OC_6H_4P(Ph)_2$=$CHCH_2CH_2CH_3)_{0.3}]_n$과 같은 포스파젠 고분자에 부착된 Wittig 시약을 $[NP(OC_6H_5)_{1.7}(OC_6H_4Br)_{0.3}]_n$에 n-butyllithium, diphenylchlorophosphine, 그리고 n-butyl iodide 등으로 처리하여 만들었다. 고분자의 반응들은 [$NP(OC_6H_5)_5(OC_6H_4P(Ph)_2$)]와 같은 고리형 삼중체를 이용한 모델반응 조건들을 고려해 이루어졌다. 포스파젠 고분자에 부착된 Wittig 시약과 benzophenone을 반응시켜 원하는 알켄과 고분자에 부착된 phosphine oxide를 성공적으로 만들었다. Polyphosphazene-bound Wittig reagents such as $[NP(OC_6H_5)_{1.7}(OC_6H_4P(Ph)_2$=$CHCH_2CH_2CH_3)_{0.3}]_n$ were synthesized by treating $[NP(OC_6H_5)_{1.7}(OC_6H_4Br)_{0.3}]_n$ with n-butyllithium, diphenylchlorophosphine, and n-butyl iodide. Polymeric reactions were carried out according to the reaction conditions with cyclic primers such as [$N_3P_3(OC_6H_5)_5(OC_6H_4P(Ph)_2$)]. The desired alkene and polymer-bound phosphine oxide were prepared successfully by the reaction of polyphosphazene-bound Wittig reagents with benzophenone.
全昌林 홍익대학교 산업기술연구소 1994 産業技術 Vol.3 No.-
We prepared the biodegradable films of the most widely used polyethylene and its vinyl acetate copolymers blended with starch as a biodegradation accelerating filler. Biodegradability of the prepared films was tested by the standard practice for determining resistance of synthetic polymeric materials to fungi (ASTM G-21) and the newly develloped method in our labolatory.
全昌林 홍익대학교 산업기술연구소 1997 産業技術 Vol.7 No.-
A study on the cross-linking reaction of epoxy resins is very important for the elevation of physical properties and processibility of the epoxy composites materials which is valuable in modern industries. The properties of the composites is depends on that of the epoxy matrix resins. Generally, the cured epoxy resin has low impact strength. For the elevation of impact strength, the reactive diluent added to the epoxy formulations. The reactive diluent also has additional adventage with decreasement of the viscosity of resin mixture before curing, and then better processibility. Equimolar mixtures of diglycidyl ether of Bisphenol-A (DGEBA) as basic epoxy resin and aliphatic diamine as curing agent are formulated with variable amount of lauric glycidyl ether (LGE) as reactive diluent, and cured under controled condition, and measured the impact strength. Accoding to the results, the cured epoxy samples with the optimum amount of reactive diluent show much increased impact strength. The reason of low impact strength of the samples with small amount of the reactive diluent is considered that the flexibility of the chain in small domains is not sufficient. When excess amount of the reactive diluent are formulated, the reason of low impact strength is considered of phase seperation by excess diluent with ow molecular weight.
全昌林 홍익대학교 산업기술연구소 2003 産業技術 Vol.13 No.-
Design of the products based on human senses requires information on customers' emotion such as vision, olfactory, gustatory, and tactile perceptions. In this study, tactile senses which have not been well studied compared to other senses, are measured and statistically analyzed. Samples are specially prepared with the patterns of different size and different density. The emotional responses of the different samples were collected and analyzed through a questionnaire in order to investigate the correlation between the adjectives and surface patterns. According to the results of this study, the external housing of new products could be designed with expectation to maximize customers' preference.