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ACRYLONITRILE로부터 METHYL ZCRYLATE 합성에 관한 연구 Acrylamide sulfate의 에스테르 반응과 유출분의 추출분이.
문규열 한국섬유공학회 1971 한국섬유공학회지 Vol.8 No.1
There are many industrial methods for the synthesis of methyl acrylate. According to Goodrich's patent, acrylamide sulfate is obtained by synthesis. Then, on it's esterification the injecting condition of methanol is investigated and the several inhibitors are used. And methyl acrylate in condensed distillate is separated by extraction. Consequently, it is better that reaction time is 4 hr at 140°C, and the yield is increased with amount of methanol. Ferrous sulfate is superior to the Goodrich's hydroquinone as an inhibitor, and water is suitable as the other component of extraction.
디메틸설폭사이드에서의 고분자량 아크릴로니트릴 중합체 및 공중합체의 합성과 그의 섬유에로의 응용
유승운,박환만,이수,문규열 國立 昌原大學校 基礎科學硏究所 1993 基礎科學硏究所論文集 Vol.4 No.-
To obtain polyacrylonitrile of high molecular weight (>1,000,000) under optimum solution polymerization condition in dimethylsufoxide, which has very low chain transfer constant, using an azobisisobutyronitrile as initiator, we examined the effect of water content in reaction mixture, and the concentration of monomer and initiator on the conversion rate and polymer properties. As a result, homo PAN with Mw=1,330,000 and about 12% of conversion was prepared under the condition of[AN]=7 mole/1 and[AIBN]=6.0x10-4 mole/1 at 50℃. Copolymers with AN and other vinylic monomers such as methyl acrylate, itaconic acid, and acrylamide, having considerably high molecular weight were also prepared under similar condition. These polymer solutions after direct dilution with DMSO were suitable enough to be applied to high strength fiber formation by dry-jet-wet spinning technique. Tensile strength was improved more than twice as high as that of common acrylic fiber used as apparel.
Acrylamide sulfate의 ester化에 의한 methylacrylate 合成에 관한 연구
朴相郁,文圭烈 부산대학교 1974 論文集 Vol.18 No.2
There are many industrial methods for the synthesis of methyl acrylate. According to goodrich's patent, acrylamide sulfate is obtained by synthesis. Then on it's esterification the injecting condition of methanol is investigated and the several inhibitors are used are used. And methyl acrylate in condensed distillate is separated tyextraction. Consequently, it is better that reaction time is 4 hr at 140℃, and the yield is increased with amount of methanol. Ferrous sulfate is superior to the Goodrich's hydroquinone as an inhibitor, and water is suitable as the other component of extraction.
朴相郁,文圭烈 부산대학교 1974 論文集 Vol.18 No.2
Dyeing is generally affected by pH, alkalinity and hardness of the water. We have studied the dyeing effect of cationic dyestaff according to temperature elevation and those of several factors in the polyacrylonitrile. Consequently, the change of pH values was not affected by the polyacrylonitrille fiber with strong acid group such as SO₃Na. The hardness value of the water affected the amount of dyeing and color change before dyeing process but it did not matter in dyeing bath.