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Journal of Polymer Science: Polymer Letters Edition最新文献

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Polymer association in styrene‐acrylic acid copolymers 苯乙烯-丙烯酸共聚物中的聚合物缔合
Journal of Polymer Science: Polymer Letters Edition Pub Date : 1990-10-01 DOI: 10.1002/POL.1990.140281101
L. Wang, E. Pearce, T. Kwei
{"title":"Polymer association in styrene‐acrylic acid copolymers","authors":"L. Wang, E. Pearce, T. Kwei","doi":"10.1002/POL.1990.140281101","DOIUrl":"https://doi.org/10.1002/POL.1990.140281101","url":null,"abstract":"L'etude par spectrometrie FTIR montre que les copolymeres contenant 49% et moins de motifs acide acrylique presentent un degre eleve de dimerisation. L'influence de la distribution des sequences de comonomeres sur la Tg des copolymeres est etudiee.","PeriodicalId":16874,"journal":{"name":"Journal of Polymer Science: Polymer Letters Edition","volume":"43 1","pages":"317-321"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76938669","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: 12
Liquid crystal polymers containing macroheterocyclic ligands. 4. Synthesis of mesomorphic polymers containing crown ethers by cationic cyclocopolymerization of 1,2‐bis(2‐ethenyloxyethoxy)benzene with mesogenic vinyl ethers 含大杂环配体的液晶聚合物。4. 1,2 -双(2 -乙基氧氧乙氧基)苯与介形乙烯醚的阳离子环聚合合成含冠醚的介形聚合物
Journal of Polymer Science: Polymer Letters Edition Pub Date : 1990-10-01 DOI: 10.1002/POL.1990.140281105
R. Rodenhouse, V. Percec, A. Feiring
{"title":"Liquid crystal polymers containing macroheterocyclic ligands. 4. Synthesis of mesomorphic polymers containing crown ethers by cationic cyclocopolymerization of 1,2‐bis(2‐ethenyloxyethoxy)benzene with mesogenic vinyl ethers","authors":"R. Rodenhouse, V. Percec, A. Feiring","doi":"10.1002/POL.1990.140281105","DOIUrl":"https://doi.org/10.1002/POL.1990.140281105","url":null,"abstract":"Cationic cyclopolymerization, polymerization and/or cyclocopolymerization of 1,2-bis(2-ethenyloxyethoxy)benzene (DVE), 11- [(4′-cyano-4-biphenyl)oxy]undecanyl vinylether (CVE), and 3 - [2 - (1,2,2- trifluoroethoxy - 2 - (4- methoxy - 4′- (α - methylstilbene)oxy)) - 1 - (trifluorometh - yl)trifluoroethoxy] - 1 - [2-(ethenyloxy)ethoxy]-2,2,3,3-tetrafluoropropane (MVE) initiated with H2O/EtAlCl2/S(CH3)2 lead to polymers and copolymers with narrow molecular weight distribution. Poly (DVE) is amorphous, while poly(CVE) and poly(MVE) display a SA and crystalline mesophase. The poly(DVE-co-MVE)s are amorphous. Poly(DVE-co-CVE)s containing 50 mol % and above of CVE structural units displays a SA mesophase.","PeriodicalId":16874,"journal":{"name":"Journal of Polymer Science: Polymer Letters Edition","volume":"186 1","pages":"345-355"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79947159","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: 34
New thermotropic polyesters from distyrylbenzene bisphenols 二苯基苯双酚合成的新型热致性聚酯
Journal of Polymer Science: Polymer Letters Edition Pub Date : 1990-10-01 DOI: 10.1002/POL.1990.140281103
T. Mates, C. Ober
{"title":"New thermotropic polyesters from distyrylbenzene bisphenols","authors":"T. Mates, C. Ober","doi":"10.1002/POL.1990.140281103","DOIUrl":"https://doi.org/10.1002/POL.1990.140281103","url":null,"abstract":"New main-chain thermotropic liquid crystalline (lc) polymers based on four derivatives of 4,4′- (p-phenylenedi-1,2-ethenediyl)bisphenol have heen prepared by Schotten-Baumen polymerization. Fusibility and solubility were achieved through the incorporation of side groups and flexible methylene spacers. Both a model ester and polymers based on the unsubstituted bisphenol were thermotropic, but had melting points in the vicinity of decomposition. Methyl, methoxy, and ethoxy side groups were used to lower the melting transition. The liquid-crystallinity was investigated with polarized light microscopy, differential scanning calorimetry, and X-ray diffraction. Methyl substitution provided the model compound and polymers with the greatest number of mesophases. Chemical structure was analyzed by infrared and UV/visible spectroscopy, 1H NMR, and elemental analysis of monomers and model compounds. Intrinsic viscosities were measured in N-methylpyrrolidone (nmp) solution.","PeriodicalId":16874,"journal":{"name":"Journal of Polymer Science: Polymer Letters Edition","volume":"12 1","pages":"331-339"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88423928","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: 3
Synthetic organic electrochemistry, Albert J. Fry, John Wiley & Sons, New York 合成有机电化学，Albert J. Fry, John Wiley & Sons，纽约
Journal of Polymer Science: Polymer Letters Edition Pub Date : 1990-09-01 DOI: 10.1002/pol.1990.140281004
Frantibk Ligka
{"title":"Synthetic organic electrochemistry, Albert J. Fry, John Wiley & Sons, New York","authors":"Frantibk Ligka","doi":"10.1002/pol.1990.140281004","DOIUrl":"https://doi.org/10.1002/pol.1990.140281004","url":null,"abstract":"","PeriodicalId":16874,"journal":{"name":"Journal of Polymer Science: Polymer Letters Edition","volume":"10 1","pages":"315-315"},"PeriodicalIF":0.0,"publicationDate":"1990-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89823953","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
Evaluation of reactivity ratio of acrylate copolymers by 13C-NMR 用13C-NMR评价丙烯酸酯共聚物的反应性
Journal of Polymer Science: Polymer Letters Edition Pub Date : 1990-09-01 DOI: 10.1002/POL.1990.140281003
D. Mohan, G. Radhakrishnan, S. Rajadurai, K. T. Joseph
{"title":"Evaluation of reactivity ratio of acrylate copolymers by 13C-NMR","authors":"D. Mohan, G. Radhakrishnan, S. Rajadurai, K. T. Joseph","doi":"10.1002/POL.1990.140281003","DOIUrl":"https://doi.org/10.1002/POL.1990.140281003","url":null,"abstract":"Copolymers of 2-hydroxyethylmethacrylate (HEMA) and glycidylmethacrylate (GMA) are useful for contact lenses. Copolymerization of HEMA and GMA was carried out in dimethylformamide medium using benzoylperoxide as initiator at 60°C. The composition of HEMA and GMA in copolymers was estimated using 13C-NMR. The reactivity ratio of HEMA and GMA was found to be r = 0.73 and r2 = 0.98 by Finemann-Ross method and r1 = 0.74 and r2= 1.00 by Kelen-Tudos methods. The experimental values are in close agreement with theoretical value determined from Q-e scheme.","PeriodicalId":16874,"journal":{"name":"Journal of Polymer Science: Polymer Letters Edition","volume":"81 5 1","pages":"307-314"},"PeriodicalIF":0.0,"publicationDate":"1990-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77387139","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: 9
A synthesis for SF5 substituted fluorocarbon polymers SF5取代氟碳聚合物的合成
Journal of Polymer Science: Polymer Letters Edition Pub Date : 1990-09-01 DOI: 10.1002/POL.1990.140281001
H. Kawa, S. Partovi, B. J. Ziegler, R. Lagow
{"title":"A synthesis for SF5 substituted fluorocarbon polymers","authors":"H. Kawa, S. Partovi, B. J. Ziegler, R. Lagow","doi":"10.1002/POL.1990.140281001","DOIUrl":"https://doi.org/10.1002/POL.1990.140281001","url":null,"abstract":"Synthesis of both hydrocarbon and perfluorocarbon vinyl polymers containing the SF5 group have been accomplished by the reaction of elemental fluorine with poly (S-vinyl-O-t-butylthiocar bonate(. The resulting linear polymers have pendant SF5 groups with similar structures to polytetrafluoroethylene and polyethylene.","PeriodicalId":16874,"journal":{"name":"Journal of Polymer Science: Polymer Letters Edition","volume":"97 4","pages":"297-300"},"PeriodicalIF":0.0,"publicationDate":"1990-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91438128","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: 3
Variable temperature spin‐lattice relaxation in the study of the local chain dynamics of polyurethane elastomers 变温度自旋晶格弛豫在聚氨酯弹性体局部链动力学研究中的应用
Journal of Polymer Science: Polymer Letters Edition Pub Date : 1990-09-01 DOI: 10.1002/POL.1990.140281002
J. Marcinko, A. Parker, Y. T. Shieh, W. Ritchey
{"title":"Variable temperature spin‐lattice relaxation in the study of the local chain dynamics of polyurethane elastomers","authors":"J. Marcinko, A. Parker, Y. T. Shieh, W. Ritchey","doi":"10.1002/POL.1990.140281002","DOIUrl":"https://doi.org/10.1002/POL.1990.140281002","url":null,"abstract":"Deux prepolymeres constitues de poly(tetramethyleneglycol) termines par des motifs diisocyanatotoluene et les polyurethannes obtenus par reaction avec la 4,4'-methylene bis-(2-chloroaniline) sont etudies","PeriodicalId":16874,"journal":{"name":"Journal of Polymer Science: Polymer Letters Edition","volume":"53 60 1","pages":"301-306"},"PeriodicalIF":0.0,"publicationDate":"1990-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90983176","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
Droplet separation, by Armin Burkholz, VCH, New York, 1990. 229 pp. 液滴分离，Armin Burkholz, VCH，纽约，1990。229页。
Journal of Polymer Science: Polymer Letters Edition Pub Date : 1990-09-01 DOI: 10.1002/POL.1990.140281005
D. Feldman
{"title":"Droplet separation, by Armin Burkholz, VCH, New York, 1990. 229 pp.","authors":"D. Feldman","doi":"10.1002/POL.1990.140281005","DOIUrl":"https://doi.org/10.1002/POL.1990.140281005","url":null,"abstract":"","PeriodicalId":16874,"journal":{"name":"Journal of Polymer Science: Polymer Letters Edition","volume":"40 1","pages":"316-316"},"PeriodicalIF":0.0,"publicationDate":"1990-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75142059","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
Organotin chemistry, Iwao Omae, Elsevier, New York, 1989,355 pp. 《有机锡化学》，Iwao Omae, Elsevier，纽约，1989,355页。
Journal of Polymer Science: Polymer Letters Edition Pub Date : 1990-08-01 DOI: 10.1002/POL.1990.140280905
F. Liška
{"title":"Organotin chemistry, Iwao Omae, Elsevier, New York, 1989,355 pp.","authors":"F. Liška","doi":"10.1002/POL.1990.140280905","DOIUrl":"https://doi.org/10.1002/POL.1990.140280905","url":null,"abstract":"","PeriodicalId":16874,"journal":{"name":"Journal of Polymer Science: Polymer Letters Edition","volume":"34 1","pages":"295-295"},"PeriodicalIF":0.0,"publicationDate":"1990-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74607095","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
Biocompatibility—interactions of biological and implantable materials, volume 1: Polymers, by Frederick Silver and Charles Doillon, V. C. H. Publishers, Inc., New York, 1989,306 pp. Price: $45.00 《生物相容性-生物和可植入材料的相互作用》，第一卷:聚合物，Frederick Silver和Charles Doillon, v.c.h. Publishers, Inc.，纽约，1989,306页。价格:$45.00
Journal of Polymer Science: Polymer Letters Edition Pub Date : 1990-08-01 DOI: 10.1002/pol.1990.140280906
L. G. Donaruma
{"title":"Biocompatibility—interactions of biological and implantable materials, volume 1: Polymers, by Frederick Silver and Charles Doillon, V. C. H. Publishers, Inc., New York, 1989,306 pp. Price: $45.00","authors":"L. G. Donaruma","doi":"10.1002/pol.1990.140280906","DOIUrl":"https://doi.org/10.1002/pol.1990.140280906","url":null,"abstract":"","PeriodicalId":16874,"journal":{"name":"Journal of Polymer Science: Polymer Letters Edition","volume":"2 1","pages":"295-296"},"PeriodicalIF":0.0,"publicationDate":"1990-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73246038","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: 3
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