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Journal of Polymer Science Part B: Polymer Letters最新文献

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Kinetics and statistics of structural changes in polyacrylonitrile 聚丙烯腈结构变化的动力学和统计学
Journal of Polymer Science Part B: Polymer Letters Pub Date : 2003-03-10 DOI: 10.1002/POL.1966.110041011
Icksam Noh, Hyuk Yu
{"title":"Kinetics and statistics of structural changes in polyacrylonitrile","authors":"Icksam Noh, Hyuk Yu","doi":"10.1002/POL.1966.110041011","DOIUrl":"https://doi.org/10.1002/POL.1966.110041011","url":null,"abstract":"It is well known that the coloration and structural changes in thermal treatment of polyacrylonitrile are due to the formation of partly hydrogenated naphthylidine-type ring involving the pendant nitrile groups. Any quantitative study of the reaction, in the sense of kinetics and/or statistics, however, has never been reported. This paper presents that, at first, the disappearance of the nitrile groups follows the first order kinetics, which indicates clearly that nitrile groups do not disappear by a long chain reaction-the kinetic chain length is very short. This observation rules out the long intramolecular and intermolecular propagation chain through which most of the nitrile groups disappear. From the evidence that a similar reaction occurs in propylene carbonate solutions without gel formation, one may conclude that the coloration and structural changes are not necessarily intermolecular reaction. Secondly, a finite amount of nitrile groups remains unreacted at the extrem of reaction-not contributed to the formation of naphthylidine-type ring. The concentration of this unreacted nitrile groups is 19∼22% which is good agreement with the statistically calculated value of 19.2%","PeriodicalId":16854,"journal":{"name":"Journal of Polymer Science Part B: Polymer Letters","volume":"14 1","pages":"721-726"},"PeriodicalIF":0.0,"publicationDate":"2003-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78795585","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: 24
Preparation of polyene polymer containing carotene derivative as polyene unit 以胡萝卜素衍生物为多烯单元的多烯聚合物的制备
Journal of Polymer Science Part B: Polymer Letters Pub Date : 1972-12-01 DOI: 10.1002/POL.1972.110101208
H. Kamogawa
{"title":"Preparation of polyene polymer containing carotene derivative as polyene unit","authors":"H. Kamogawa","doi":"10.1002/POL.1972.110101208","DOIUrl":"https://doi.org/10.1002/POL.1972.110101208","url":null,"abstract":"","PeriodicalId":16854,"journal":{"name":"Journal of Polymer Science Part B: Polymer Letters","volume":"22 1","pages":"929-933"},"PeriodicalIF":0.0,"publicationDate":"1972-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86312931","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
Gas chromatography in polymer chemistry (in Russian), V. G. Berezkin, V. R. Alishoev, and I. B. Nemirovskaya, “Nauka”, Moscow, 1972. 288 pp. Rub. 1.13
Journal of Polymer Science Part B: Polymer Letters Pub Date : 1972-11-01 DOI: 10.1002/pol.1972.110101112
J. Bikerman
{"title":"Gas chromatography in polymer chemistry (in Russian), V. G. Berezkin, V. R. Alishoev, and I. B. Nemirovskaya, “Nauka”, Moscow, 1972. 288 pp. Rub. 1.13","authors":"J. Bikerman","doi":"10.1002/pol.1972.110101112","DOIUrl":"https://doi.org/10.1002/pol.1972.110101112","url":null,"abstract":"","PeriodicalId":16854,"journal":{"name":"Journal of Polymer Science Part B: Polymer Letters","volume":"1 1","pages":"883-883"},"PeriodicalIF":0.0,"publicationDate":"1972-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83555350","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
Plastics as design form, Thelma R. Newman, Chilton Book Company, Philadelphia, Pennsylvania, 1972. 348 pp. $17.95 塑料作为设计形式，塞尔玛·r·纽曼，奇尔顿图书公司，费城，宾夕法尼亚州，1972。348页，17.95美元
Journal of Polymer Science Part B: Polymer Letters Pub Date : 1972-11-01 DOI: 10.1002/pol.1972.110101115
N. Bikales
{"title":"Plastics as design form, Thelma R. Newman, Chilton Book Company, Philadelphia, Pennsylvania, 1972. 348 pp. $17.95","authors":"N. Bikales","doi":"10.1002/pol.1972.110101115","DOIUrl":"https://doi.org/10.1002/pol.1972.110101115","url":null,"abstract":"","PeriodicalId":16854,"journal":{"name":"Journal of Polymer Science Part B: Polymer Letters","volume":"1 1","pages":"886-886"},"PeriodicalIF":0.0,"publicationDate":"1972-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75614745","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
On the opening of double bond in the polymerization of methyl methacrylate initiated by diethylbis (dipyridyl) iron 二乙基双(二吡啶)铁引发甲基丙烯酸甲酯聚合过程中双键打开的研究
Journal of Polymer Science Part B: Polymer Letters Pub Date : 1972-11-01 DOI: 10.1002/POL.1972.110101103
Takakazu Yamamoto, A. Yamamoto, S. Ikeda
{"title":"On the opening of double bond in the polymerization of methyl methacrylate initiated by diethylbis (dipyridyl) iron","authors":"Takakazu Yamamoto, A. Yamamoto, S. Ikeda","doi":"10.1002/POL.1972.110101103","DOIUrl":"https://doi.org/10.1002/POL.1972.110101103","url":null,"abstract":"","PeriodicalId":16854,"journal":{"name":"Journal of Polymer Science Part B: Polymer Letters","volume":"10 1","pages":"835-838"},"PeriodicalIF":0.0,"publicationDate":"1972-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90109307","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
“Cationic” polymerization in presence of polar solvents and acrylic monomers 极性溶剂和丙烯酸单体存在下的“阳离子”聚合
Journal of Polymer Science Part B: Polymer Letters Pub Date : 1972-10-01 DOI: 10.1002/POL.1972.110101001
N. Gaylord, B. K. Patnaik, S. Maiti
{"title":"“Cationic” polymerization in presence of polar solvents and acrylic monomers","authors":"N. Gaylord, B. K. Patnaik, S. Maiti","doi":"10.1002/POL.1972.110101001","DOIUrl":"https://doi.org/10.1002/POL.1972.110101001","url":null,"abstract":"","PeriodicalId":16854,"journal":{"name":"Journal of Polymer Science Part B: Polymer Letters","volume":"33 1","pages":"751-758"},"PeriodicalIF":0.0,"publicationDate":"1972-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74263214","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
On the annealing of polyamide crystal mats 关于聚酰胺晶体席的退火
Journal of Polymer Science Part B: Polymer Letters Pub Date : 1972-10-01 DOI: 10.1002/POL.1972.110101003
A. Burmester, P. Dreyfuss, P. Geil, A. Keller
{"title":"On the annealing of polyamide crystal mats","authors":"A. Burmester, P. Dreyfuss, P. Geil, A. Keller","doi":"10.1002/POL.1972.110101003","DOIUrl":"https://doi.org/10.1002/POL.1972.110101003","url":null,"abstract":"","PeriodicalId":16854,"journal":{"name":"Journal of Polymer Science Part B: Polymer Letters","volume":"9 1","pages":"769-775"},"PeriodicalIF":0.0,"publicationDate":"1972-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74345459","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: 7
Synthesis of alternating 1,1,4,4-tetradeuterio-butadiene-methacrylonitrile copolymers and their characterization by 300 MHz NMR spectroscopy 1,1,4,4-四氘-丁二烯-甲基丙烯腈交替共聚物的合成及300 MHz核磁共振表征
Journal of Polymer Science Part B: Polymer Letters Pub Date : 1972-10-01 DOI: 10.1002/POL.1972.110101007
T. L. Ang, R. Chang, E. Santee, H. Harwood
{"title":"Synthesis of alternating 1,1,4,4-tetradeuterio-butadiene-methacrylonitrile copolymers and their characterization by 300 MHz NMR spectroscopy","authors":"T. L. Ang, R. Chang, E. Santee, H. Harwood","doi":"10.1002/POL.1972.110101007","DOIUrl":"https://doi.org/10.1002/POL.1972.110101007","url":null,"abstract":"","PeriodicalId":16854,"journal":{"name":"Journal of Polymer Science Part B: Polymer Letters","volume":"43 1","pages":"791-797"},"PeriodicalIF":0.0,"publicationDate":"1972-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75505857","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
Electroinitiated polymerization of styrene in propylene carbonate 苯乙烯在碳酸丙烯酯中的电引发聚合
Journal of Polymer Science Part B: Polymer Letters Pub Date : 1972-10-01 DOI: 10.1002/POL.1972.110101006
G. Pistoia
{"title":"Electroinitiated polymerization of styrene in propylene carbonate","authors":"G. Pistoia","doi":"10.1002/POL.1972.110101006","DOIUrl":"https://doi.org/10.1002/POL.1972.110101006","url":null,"abstract":"","PeriodicalId":16854,"journal":{"name":"Journal of Polymer Science Part B: Polymer Letters","volume":"9 1","pages":"787-790"},"PeriodicalIF":0.0,"publicationDate":"1972-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86696485","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
Metallorganische Verbindungen Li Na K Rb Cs Cu Ag Au, O. Bayer, H. Meerwein and K. Ziegler, Georg Thieme Verlag, Stuttgart, West Germany, 1970. 904 pp. DM 336 有机金属制品李纳K K g公司，o巴伐利亚，h海产和齐格勒，盖尔出版社，斯图加特，西德国，1970年。904 pp 336马克
Journal of Polymer Science Part B: Polymer Letters Pub Date : 1972-10-01 DOI: 10.1002/POL.1972.130101012
A. Schindler
{"title":"Metallorganische Verbindungen Li Na K Rb Cs Cu Ag Au, O. Bayer, H. Meerwein and K. Ziegler, Georg Thieme Verlag, Stuttgart, West Germany, 1970. 904 pp. DM 336","authors":"A. Schindler","doi":"10.1002/POL.1972.130101012","DOIUrl":"https://doi.org/10.1002/POL.1972.130101012","url":null,"abstract":"","PeriodicalId":16854,"journal":{"name":"Journal of Polymer Science Part B: Polymer Letters","volume":"1219 1","pages":"818-819"},"PeriodicalIF":0.0,"publicationDate":"1972-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82624532","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
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