发布求助
文献互助 智能选刊 最新文献

Kogyo Kagaku Zasshi最新文献

筛选
英文 中文
ELECTRON SPIN RESONANCE STUDIES ON RADIATION-INDUCED SOLID STATE POLYMERIZATION OF METHYL METHACRYLATE. 辐射诱导甲基丙烯酸甲酯固态聚合的电子自旋共振研究。
Kogyo Kagaku Zasshi Pub Date : 1900-01-01 DOI: 10.1246/NIKKASHI1898.73.11_2479
Koichi Mori, Y. Tabata, K. Oshima
{"title":"ELECTRON SPIN RESONANCE STUDIES ON RADIATION-INDUCED SOLID STATE POLYMERIZATION OF METHYL METHACRYLATE.","authors":"Koichi Mori, Y. Tabata, K. Oshima","doi":"10.1246/NIKKASHI1898.73.11_2479","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.73.11_2479","url":null,"abstract":"メタクリル酸メチル(MMA)の放射線による固相重合を電子スピン共鳴吸収(ESR)を用いて研究した。モノマーは真空蒸留によりESR管の壁に蒸着させ60Co-γ線により照射した。77°K暗黒中で得られるスペクトルは,水素のモノマーに付加したCH3-C(CH3)-COOCH3の7本線とその両端に長く尾を引くラジカル対のスペクトルおよび捕捉電子と考えられるブロードな1本線の重なりである。4000Å以上の光照射によりラジカル対および捕捉電子のスペクトルは消失し,また7本線もR～CH2-C(CH3)-COOCH3のポリマーラジカルの5本線に徐々に変化してゆく。光照射したモノマーを融解してもポリマーは得られないことからこのポリマーラジカルは低分子量と推測された。得られた実験結果より,ラジカル対の生成機構および放射線固相重合の機構を考察した。","PeriodicalId":374032,"journal":{"name":"Kogyo Kagaku Zasshi","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128998969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RADIATION-INDUCED COPOLYMERIZATION OF ALLYLALCOHOL AND SULFUR DIOXIDE. 辐射诱导烯丙醇和二氧化硫的共聚。
Kogyo Kagaku Zasshi Pub Date : 1900-01-01 DOI: 10.1246/NIKKASHI1898.69.3_531
M. Ito, Z. Kuri
{"title":"RADIATION-INDUCED COPOLYMERIZATION OF ALLYLALCOHOL AND SULFUR DIOXIDE.","authors":"M. Ito, Z. Kuri","doi":"10.1246/NIKKASHI1898.69.3_531","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.69.3_531","url":null,"abstract":"","PeriodicalId":374032,"journal":{"name":"Kogyo Kagaku Zasshi","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115944022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Radiation-Induced Polymerization of Acrylonitrile in Liquid Ethylene 辐射诱导丙烯腈在液态乙烯中的聚合
Kogyo Kagaku Zasshi Pub Date : 1900-01-01 DOI: 10.1246/NIKKASHI1898.65.5_735
Y. Tabata, H. Sobue, A. Harã
{"title":"Radiation-Induced Polymerization of Acrylonitrile in Liquid Ethylene","authors":"Y. Tabata, H. Sobue, A. Harã","doi":"10.1246/NIKKASHI1898.65.5_735","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.65.5_735","url":null,"abstract":"The mixed system of 2 unsaturated compounds were irradiated by Co/sup 60/ gamma -rays at-78 deg C at the rate of 7 x 10/sup 4/ r/hr up to 6.4 x 10/sup 6/ r. Only acrylonitrile polymerized. The results indicated that both C = C and C/ sup -/=N bonds of acrylonitrile polymerized; however, the ratio of the 2 types varied with different concentrations of the monomer. Polymerization of the former occurred only in a bulk 100% monomer, while the latter occurred predominantly in a dilute monomer solution. This type of polymerization, C/sup -/ =N, would be an ionic mechanism, and probably anionic. It was concluded that polymerization of such a mixture was partially by the ionic mechanism in medium concentration of the monomer. The structures of the products are described. (OID)","PeriodicalId":374032,"journal":{"name":"Kogyo Kagaku Zasshi","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132910271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RADIATION-INDUCED COPOLYMERIZATION OF PROPYLENE AND SULFUR DIOXIDE. 辐射诱导丙烯和二氧化硫的共聚。
Kogyo Kagaku Zasshi Pub Date : 1900-01-01 DOI: 10.1246/NIKKASHI1898.69.3_535
M. Ito, S. Miyazima
{"title":"RADIATION-INDUCED COPOLYMERIZATION OF PROPYLENE AND SULFUR DIOXIDE.","authors":"M. Ito, S. Miyazima","doi":"10.1246/NIKKASHI1898.69.3_535","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.69.3_535","url":null,"abstract":"","PeriodicalId":374032,"journal":{"name":"Kogyo Kagaku Zasshi","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129002372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ACTIVATION ANALYSIS OF NITROGEN WITH 14-MeV NEUTRONS USING ALUMINUM AS INTERNAL STANDARD. 以铝为内标，用14mev中子活化氮的分析。
Kogyo Kagaku Zasshi Pub Date : 1900-01-01 DOI: 10.1246/NIKKASHI1898.72.3_656
D. Ishii, K. Jinno
{"title":"ACTIVATION ANALYSIS OF NITROGEN WITH 14-MeV NEUTRONS USING ALUMINUM AS INTERNAL STANDARD.","authors":"D. Ishii, K. Jinno","doi":"10.1246/NIKKASHI1898.72.3_656","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.72.3_656","url":null,"abstract":"","PeriodicalId":374032,"journal":{"name":"Kogyo Kagaku Zasshi","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125232817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Production of High Purity Artificial Graphite 高纯度人造石墨的生产
Kogyo Kagaku Zasshi Pub Date : 1900-01-01 DOI: 10.1246/NIKKASHI1898.66.14
T. Ishikawa, S. Yoshizawa
{"title":"Production of High Purity Artificial Graphite","authors":"T. Ishikawa, S. Yoshizawa","doi":"10.1246/NIKKASHI1898.66.14","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.66.14","url":null,"abstract":"The most effective treatment to remove V from raw coke was to treat the coke with 5% of NH4Cl and heat at 2000 deg C for 3 hr. A graphitization furnace was used to attain the temperature of 2000 deg C. Satisfactory results were also obtained by the same purification and graphitization process by adding the necessary amount of NH4Cl or NaCl to the raw mixture. For molded graphite products, impregnation with saturated soiutions ofNH4Cl or NaCl and treatment with Cl2 during heating were tried. The methods were also applicable to the purification of graphite of low purity. The degree of graphitization of purified graphite was slightiy higher than that of unpurified graphite. The elimination of B from graphite must be attained in order for it to meet the requirement for use in atomic reactors. It was shown that the treatment of graphite with Cl2 containing HF mist at 2000 deg C for 3 hr is effective for the purpose of decreasing B content to less than 1 ppm. The formation of (CF)n must be avoided by use of the Cl2-HF mixture at high temperature, because (CF)n is formed below 700 deg C. (H.H.D.)","PeriodicalId":374032,"journal":{"name":"Kogyo Kagaku Zasshi","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123712293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
EXTRACTION OF NITRIC ACID AND URANYL NITRATE WITH TRI-n-OCTYLAMINE. 三正辛胺萃取硝酸和硝酸铀酰。
Kogyo Kagaku Zasshi Pub Date : 1900-01-01 DOI: 10.1246/NIKKASHI1898.70.5_622
T. Tsujino, K. Ohwada
{"title":"EXTRACTION OF NITRIC ACID AND URANYL NITRATE WITH TRI-n-OCTYLAMINE.","authors":"T. Tsujino, K. Ohwada","doi":"10.1246/NIKKASHI1898.70.5_622","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.70.5_622","url":null,"abstract":"抽出機構を明らかにする目的で,トリオクチルアミン/ケロシン溶媒による硝酸および硝酸ウラニルの抽出を30℃ で実験検討した。得られた分配平衡データおよび分光スペクトルの結果からつぎの抽出反応を推論した。硝酸の抽出に対して(中和)R3N+H++NO3-〓R3NHNO3(1)(付加)R3NHNO3+aHNO3〓R3NHNO3・aHNO3(2)(1),(2)式を合せた分配比(Kd)はつぎの実験式でまとめることができる。Kd=[R3N]i{1/[HNO3]d+K}(3)Kは[R3N]i<[HNO3]aq<1Nの条件では0,1N〓[HNO3]aq<5Nでは0.3,5N〓[HNO3]aq〓9Nでは0.34の値をもつ実験定数である。さらにウランの抽出は6N以下の硝酸濃度では(4)式の分子会合機構で進み,6N以上の硝酸濃度では分子会合および(5)式のイオン交換機構の双方で進むと考えるのが妥当である。R3NHNO3+UO2(NO3)2〓R3NHUO2(NO3)3(4)R3NHNO3+UO2(NO3)3-〓R3NHUO2(NO3)3+NO3-(5)","PeriodicalId":374032,"journal":{"name":"Kogyo Kagaku Zasshi","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128265415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
EFFECT OF MAGNETIC FIELD ON RADIATION INDUCED SOLID STATE POLYMERIZATION OF ACRYLONITRILE AT LOW TEMPERATURE. 磁场对低温辐射诱导丙烯腈固态聚合的影响。
Kogyo Kagaku Zasshi Pub Date : 1900-01-01 DOI: 10.1246/NIKKASHI1898.73.6_1215
Koichi Mori, Y. Tabata, K. Oshima
{"title":"EFFECT OF MAGNETIC FIELD ON RADIATION INDUCED SOLID STATE POLYMERIZATION OF ACRYLONITRILE AT LOW TEMPERATURE.","authors":"Koichi Mori, Y. Tabata, K. Oshima","doi":"10.1246/NIKKASHI1898.73.6_1215","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.73.6_1215","url":null,"abstract":"アクリロニトリルの放射線低温固相電合における磁場の効果を研究した。77°Kの重合では照射線量とともに収率は増加しある飽和値に達する。磁場強度0～5000ガウスの範囲では, 磁場強度の増大とともに初期重合速度および飽和収率も増加し, 約4000ガウス付近で最大値をとりついで減少する。粘度測定より分子量は照射時間とともに減少するが, 磁場の有無による影響はほとんど認められなかった。一方, ポリマー鎖数は照射線量とともに増加し, 磁場強度の増加により収率と同様4000ガウス付近で最大となりついで減少する。磁場の効果は放射線による低温固相重合の初期過程にきいているものと推測される。その機構については理論的に明白ではないが, アントラセンの光二量化反応においても同様に収率に磁場強度依存性があり, 現在分子の集合体としての励起, すなわち集団励起状態が固相重合の初期過程に関与している事の間接的な証拠であると考えられる。その他の種々の可能性についても検討した。","PeriodicalId":374032,"journal":{"name":"Kogyo Kagaku Zasshi","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128759884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
INCREASING OF MOLECULAR WEIGHT OF POLYTETRAFLUOROETHYLENE OBTAINED BY RADIATION INDUCED POLYMERIZATION. 辐射聚合法制备的聚四氟乙烯分子量的增加。
Kogyo Kagaku Zasshi Pub Date : 1900-01-01 DOI: 10.1246/NIKKASHI1898.73.4_832
S. Fujioka, Y. Shinohara, Tadashi Nakamura
{"title":"INCREASING OF MOLECULAR WEIGHT OF POLYTETRAFLUOROETHYLENE OBTAINED BY RADIATION INDUCED POLYMERIZATION.","authors":"S. Fujioka, Y. Shinohara, Tadashi Nakamura","doi":"10.1246/NIKKASHI1898.73.4_832","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.73.4_832","url":null,"abstract":"","PeriodicalId":374032,"journal":{"name":"Kogyo Kagaku Zasshi","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117350078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
THERMO-STABILIZATION OF POLYTETRAFLUOROETHYLENE OBTAINED BY RADIATION INDUCED POLYMERIZATION. 辐射聚合法制备聚四氟乙烯的热稳定性。
Kogyo Kagaku Zasshi Pub Date : 1900-01-01 DOI: 10.1246/NIKKASHI1898.73.4_835
S. Fujioka, Y. Shinohara, Tadashi Nakamura
{"title":"THERMO-STABILIZATION OF POLYTETRAFLUOROETHYLENE OBTAINED BY RADIATION INDUCED POLYMERIZATION.","authors":"S. Fujioka, Y. Shinohara, Tadashi Nakamura","doi":"10.1246/NIKKASHI1898.73.4_835","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.73.4_835","url":null,"abstract":"","PeriodicalId":374032,"journal":{"name":"Kogyo Kagaku Zasshi","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130542510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信