{"title":"Plywood adhesive technology. By T. Sellers Jr, Marcel Dekker, New York, 1985. pp. xiii + 661, price $119.50 ($99.75 USA & Canada) ISBN 0‐8247‐7407‐8","authors":"C. Finch","doi":"10.1002/PI.4980180432","DOIUrl":"https://doi.org/10.1002/PI.4980180432","url":null,"abstract":"","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86535875","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}
Both infrared spectroscopy and wet chemical techniques reveal that the terminal acid groups of carboxyl-terminated polybutadiene behave in the same manner as in representative low molecular weight dilute solution systems. Contrary to previous expectations the chromium(III)-catalysed epoxy chain extension shows third-order character, and the slow progress of reaction at high conversions can be rationalised on simple kinetic grounds and without recourse to considerations of limited functional group accessibility. The parallels between bulk polymer and classical solution reactions anticipate the effectiveness of a system in which the catalyst is also a polymer: the synthesis and evaluation of two such catalysts are described. Whilst gel times are no slower for the polymer-catalysed cures, product properties may be actually improved, thus, the unreinforced product of a liquid nitrile rubber cure may achieve a tensile strength of 4.5 MPa when the initial catalyst is chromium(III) supported on the same polymer, an improvement which can be rationalised in terms of classical concepts of polymer reactivity and step growth processes.
{"title":"The Cure of Carboxy‐terminated Diene Polymers and the Role of a Polymer‐supported Catalyst","authors":"B. Willoughby","doi":"10.1002/PI.4980180414","DOIUrl":"https://doi.org/10.1002/PI.4980180414","url":null,"abstract":"Both infrared spectroscopy and wet chemical techniques reveal that the terminal acid groups of carboxyl-terminated polybutadiene behave in the same manner as in representative low molecular weight dilute solution systems. Contrary to previous expectations the chromium(III)-catalysed epoxy chain extension shows third-order character, and the slow progress of reaction at high conversions can be rationalised on simple kinetic grounds and without recourse to considerations of limited functional group accessibility. The parallels between bulk polymer and classical solution reactions anticipate the effectiveness of a system in which the catalyst is also a polymer: the synthesis and evaluation of two such catalysts are described. Whilst gel times are no slower for the polymer-catalysed cures, product properties may be actually improved, thus, the unreinforced product of a liquid nitrile rubber cure may achieve a tensile strength of 4.5 MPa when the initial catalyst is chromium(III) supported on the same polymer, an improvement which can be rationalised in terms of classical concepts of polymer reactivity and step growth processes.","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82288978","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":"Progress in polymer science, Volume 9. Edited by A. D. Jenkins and V. T. Stannett, Pergamon Press, Oxford, 1984. pp. ii + 371, price £82.50, $145.00. ISBN 0‐08031‐734‐0","authors":"C. Finch","doi":"10.1002/PI.4980180419","DOIUrl":"https://doi.org/10.1002/PI.4980180419","url":null,"abstract":"","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77969137","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}
The use of molten salt in the pressurised liquid continuous vulcanisation system enables most of the disadvantages of steam continuous vulcanisation to be overcome. To reduce the time needed to introduce this novel process into production a computer was used to simulate the pressurised liquid continuous vulcanisation system. Computer simulation can greatly reduce the costs of introducing new processes.
{"title":"The Computer Simulation of the Continuous Vulcanisation of High Pressure Hose","authors":"C. W. Evans, T. Manley","doi":"10.1002/PI.4980180413","DOIUrl":"https://doi.org/10.1002/PI.4980180413","url":null,"abstract":"The use of molten salt in the pressurised liquid continuous vulcanisation system enables most of the disadvantages of steam continuous vulcanisation to be overcome. To reduce the time needed to introduce this novel process into production a computer was used to simulate the pressurised liquid continuous vulcanisation system. Computer simulation can greatly reduce the costs of introducing new processes.","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73275283","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":"Polymer degradation and stabilisation. N. Grassie and G. Scott, Cambridge University Press, Cambridge, 1985. pp. 222, price £27.50, $54.50. ISBN 0‐521‐24961‐9","authors":"P. Calvert","doi":"10.1002/PI.4980180422","DOIUrl":"https://doi.org/10.1002/PI.4980180422","url":null,"abstract":"","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85244608","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}
Recent studies of the structure and properties of ultra high modulus polyethylenes are presented. The physical properties received include dynamic mechanical behaviour, creep, shrinkage, shrinkage force, melting behaviour, thermal expansion and barrier properties.
{"title":"Recent Studies of Physical Properties of Highly Oriented Polyethylene","authors":"I. Ward","doi":"10.1002/PI.4980180403","DOIUrl":"https://doi.org/10.1002/PI.4980180403","url":null,"abstract":"Recent studies of the structure and properties of ultra high modulus polyethylenes are presented. The physical properties received include dynamic mechanical behaviour, creep, shrinkage, shrinkage force, melting behaviour, thermal expansion and barrier properties.","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90741757","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":"Adhesives technology handbook. By A. H. Landrock, Noyes Publications, Park Ridge, New Jersey, 1985. pp. xxiv + 444, price $64.00. ISBN 0-8155-1040-3","authors":"C. Finch","doi":"10.1002/PI.4980180431","DOIUrl":"https://doi.org/10.1002/PI.4980180431","url":null,"abstract":"","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78340979","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}
The diffusion of water into epoxide composites containing sand or glass beads has been studied as a function of temperature, type of filler and its surface treatment. This investigation falls within a broader context whose aim is to assess the possibility of embedding nuclear wastes into polymer matrices. The quality of polymer-filler adhesion was checked by scanning electron microscopy. The best filler was found to be siliceous sand in particles of about 30 μm diameter, which could be added to epoxide networks in large proportions and provide a better material than the polymer alone.
{"title":"Behaviour of Composites Used in the Confinement of Nuclear Wastes 2 ‐ Water Absorption in Particle‐filled Epoxide Networks","authors":"E. Nicaise, A. Gandini, H. Cheradame","doi":"10.1002/PI.4980180410","DOIUrl":"https://doi.org/10.1002/PI.4980180410","url":null,"abstract":"The diffusion of water into epoxide composites containing sand or glass beads has been studied as a function of temperature, type of filler and its surface treatment. This investigation falls within a broader context whose aim is to assess the possibility of embedding nuclear wastes into polymer matrices. The quality of polymer-filler adhesion was checked by scanning electron microscopy. The best filler was found to be siliceous sand in particles of about 30 μm diameter, which could be added to epoxide networks in large proportions and provide a better material than the polymer alone.","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87641900","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":"Polymer additives. Edited by J. E. Kresta, Plenum Press, New York, 1984. pp. 408 + index, price $72.50 (USA & Canada), $87.00 (rest of world). ISBN 0‐306‐41807‐X","authors":"T. J. Henman","doi":"10.1002/PI.4980180421","DOIUrl":"https://doi.org/10.1002/PI.4980180421","url":null,"abstract":"","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74818274","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}
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