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구리이온을 도입한 Acrylonitrile-Acrylic Acid계 공중합체의 도전성에 관한 연구
손원근,맹기석,김동철,송해영 忠南大學校 産業技術硏究所 1987 산업기술연구논문집 Vol.2 No.2
The AN-AA copolymer-Cu(Ⅱ) and Amidated AN-AA copolymer-Cu(Ⅱ) complex were the most stable in the pH range of 9. The morphology of Cu(Ⅱ) complex and CuxS-induced had changed into compact form. The thermal stability for Cu(Ⅱ) complex and CuxS-induced had been determined through DTA and TGA measurement. As result, it has been observed that thermal stability for Cu(Ⅱ) complex were stabilized less than that of copolymer. The Cu(Ⅱ) complex exhibited surface resistivity around 10Ω㎝ when modified iodine in acetone. The resistivity was significantly affected by the amounts of added cupric chloride, iodine and results were statisfactorily obtained by adding more than 20wt% of Cupric chloride and about 1.0wt% iodine. The optimum condition for the introducing of CuxS was at the CuSO₄concentration of 30g/ℓ and the reaction time of 3hrs. The CuxS-induced electrical conductivity of copolymer was higher by order of 10 than that of the Cu(Ⅱ) complex.
이온교환체로서 Polyphenylene Sulfide Sulfonic Acid에 관한 연구
전병광,손원근,서구원,맹학영,김동철,송해영 충남대학교 공업교육연구소 1994 論文集 Vol.17 No.1
Sulfonated poly(phenylene sulfide)(S-PPS) was prepared by the reaction of poly(phenylene sulfide)(PPS) with fuming sulfuric acid. The sulfonation was confirmed by the high intensity band of the SO_3H group at 1190 cm^-1. Thermally crosslinked S-PPS was used for a cation exchange polymer with high thermal stability. The ion exchange capacity of soluble S-PPS(H-form) and insoluble S-PPS(H-form) was 5.16meq/g and 3.50meq/g, respectively. The ion exchange capacity and IR absorbance at 1190cm^-1 of S-PPS were decreased as the curing temperature was increased.
구리 이온을 도입한 PAN과 A-PAN의 도전성에 관한 연구
백중현,송해영,손원근,여창열 忠南大學校 産業技術硏究所 1990 산업기술연구논문집 Vol.5 No.2
The PAN-Cu(Ⅱ) and A-PAN-Cu(Ⅱ) complexes were the most stable in the pH 11. The morphology of CuxS-induced PAN, A-PAN had changed into compact form. The Cu(Ⅱ) complex exhibited surface resistivity around 10Ω㎝ when modified iodine in acetone. The resistivity was significantly affected by the amounts of added cupric chloride, iodine and results were satisfactorily obtained by adding more than 20wt% of cupric chloride and about 3wt% iodine. The optimum conduction for the introducing of CuxS was at the CuSO₄concentration of 30g/ℓand the reaction time of 3hrs. The electrical conductivity of CuxS-induced PAN and A-PAN was higher by order of 10-⁴than of the Cu(Ⅱ)complex.
이온교환체로서 하나의 disulfide bond를 포함하는 Oligo(p-phenylene Sulfide)의 술폰화에 관한 연구
김남진,송해영,손원근,김동철 忠南大學校 産業技術硏究所 1995 산업기술연구논문집 Vol.10 No.2
Oligo(p-phenylene sulfide)(OPS) as ion exchanger matrix was synthesized by cationic oxidative polymerization of diphenyl disulfide. Sulfonated oligo(p-phenylene dulfide)(SOPS) derivative was prepared by sulfonating OPS with concentrated sulfuric acid and the sulfonation was confirmed by the presence of a high intensity band of 1200㎝ due to arylene sulfonic acid. The optimum conditions for the attaching sulfonic acid group estimated by IR absorbance bands and ion exchange capacity resulted in reaction time 11h, reaction temperature 110℃, and 9N H₂SO₄. This ion exchange capacity was 11.0meq/g. Also in TG analysis Td10% (temp. for 10% weight loss) was 333℃. This result increased the possibility of use as thermostable cationic exchange resin.