{"title":"Polymer association in styrene-acrylic acid copolymers","authors":"L. F. Wang, Eli M. Pearce, T. K. Kwei","doi":"10.1002/pol.1990.140281101","DOIUrl":"https://doi.org/10.1002/pol.1990.140281101","url":null,"abstract":"","PeriodicalId":100825,"journal":{"name":"Journal of Polymer Science Part C: Polymer Letters","volume":"28 11","pages":"317-321"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/pol.1990.140281101","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72180528","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}
{"title":"Polymerization of n-butyl isocyanate by pruitt-baggett adduct","authors":"Osman Yilmaz, Ali Usanmaz, Kemal Alyürük","doi":"10.1002/pol.1990.140281104","DOIUrl":"https://doi.org/10.1002/pol.1990.140281104","url":null,"abstract":"","PeriodicalId":100825,"journal":{"name":"Journal of Polymer Science Part C: Polymer Letters","volume":"28 11","pages":"341-343"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/pol.1990.140281104","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72180530","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}
{"title":"New thermotropic polyesters from distyrylbenzene bisphenols","authors":"T. E. Mates, C. K. Ober","doi":"10.1002/pol.1990.140281103","DOIUrl":"https://doi.org/10.1002/pol.1990.140281103","url":null,"abstract":"<p>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, <sup>1</sup>H NMR, and elemental analysis of monomers and model compounds. Intrinsic viscosities were measured in <i>N</i>-methylpyrrolidone (nmp) solution.</p>","PeriodicalId":100825,"journal":{"name":"Journal of Polymer Science Part C: Polymer Letters","volume":"28 11","pages":"331-339"},"PeriodicalIF":0.0,"publicationDate":"1990-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/pol.1990.140281103","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72180511","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}
{"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":100825,"journal":{"name":"Journal of Polymer Science Part C: Polymer Letters","volume":"28 10","pages":"315"},"PeriodicalIF":0.0,"publicationDate":"1990-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/pol.1990.140281004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72182707","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}
{"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":100825,"journal":{"name":"Journal of Polymer Science Part C: Polymer Letters","volume":"28 10","pages":"316"},"PeriodicalIF":0.0,"publicationDate":"1990-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/pol.1990.140281005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72182710","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}
D. Mohan, Ganga Radhakrishnan, S. Rajadurai, K. Thomas Joseph
{"title":"Evaluation of reactivity ratio of acrylate copolymers by 13C-NMR","authors":"D. Mohan, Ganga Radhakrishnan, S. Rajadurai, K. Thomas Joseph","doi":"10.1002/pol.1990.140281003","DOIUrl":"https://doi.org/10.1002/pol.1990.140281003","url":null,"abstract":"<p>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 <sup>13</sup>C-NMR. The reactivity ratio of HEMA and GMA was found to be r = 0.73 and r<sub>2</sub> = 0.98 by Finemann-Ross method and r<sub>1</sub> = 0.74 and r<sub>2</sub>= 1.00 by Kelen-Tudos methods. The experimental values are in close agreement with theoretical value determined from Q-e scheme.</p>","PeriodicalId":100825,"journal":{"name":"Journal of Polymer Science Part C: Polymer Letters","volume":"28 10","pages":"307-314"},"PeriodicalIF":0.0,"publicationDate":"1990-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/pol.1990.140281003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72182706","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}
H. Kawa, S. N. Partovi, B. J. Ziegler, R. J. Lagow
{"title":"A synthesis for SF5 substituted fluorocarbon polymers","authors":"H. Kawa, S. N. Partovi, B. J. Ziegler, R. J. Lagow","doi":"10.1002/pol.1990.140281001","DOIUrl":"https://doi.org/10.1002/pol.1990.140281001","url":null,"abstract":"<p>Synthesis of both hydrocarbon and perfluorocarbon vinyl polymers containing the SF<sub>5</sub> group have been accomplished by the reaction of elemental fluorine with poly (S-vinyl-<i>O-t</i>-butylthiocar bonate(. The resulting linear polymers have pendant SF<sub>5</sub> groups with similar structures to polytetrafluoroethylene and polyethylene.</p>","PeriodicalId":100825,"journal":{"name":"Journal of Polymer Science Part C: Polymer Letters","volume":"28 10","pages":"297-300"},"PeriodicalIF":0.0,"publicationDate":"1990-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/pol.1990.140281001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72182708","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}
J. J. Marcinko, A. A. Parker, Y. T. Shieh, W. M. Ritchey
{"title":"Variable temperature spin-lattice relaxation in the study of the local chain dynamics of polyurethane elastomers","authors":"J. J. Marcinko, A. A. Parker, Y. T. Shieh, W. M. 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":100825,"journal":{"name":"Journal of Polymer Science Part C: Polymer Letters","volume":"28 10","pages":"301-306"},"PeriodicalIF":0.0,"publicationDate":"1990-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/pol.1990.140281002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72182709","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}
{"title":"Epoxidation of unsaturated polymers with hydrogen peroxide","authors":"Xigao Jian, Allan S. Hay","doi":"10.1002/pol.1990.140280903","DOIUrl":"https://doi.org/10.1002/pol.1990.140280903","url":null,"abstract":"","PeriodicalId":100825,"journal":{"name":"Journal of Polymer Science Part C: Polymer Letters","volume":"28 9","pages":"285-288"},"PeriodicalIF":0.0,"publicationDate":"1990-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/pol.1990.140280903","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72193125","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}
{"title":"Organotin chemistry, Iwao Omae, Elsevier, New York, 1989,355 pp.","authors":"František Liška","doi":"10.1002/pol.1990.140280905","DOIUrl":"https://doi.org/10.1002/pol.1990.140280905","url":null,"abstract":"","PeriodicalId":100825,"journal":{"name":"Journal of Polymer Science Part C: Polymer Letters","volume":"28 9","pages":"295"},"PeriodicalIF":0.0,"publicationDate":"1990-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/pol.1990.140280905","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72193613","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}