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Homogeneous polymerisation of methylmethacrylate initiated by alkali metal salts of methanol and t-butyl alcohol in the presence of cryptands and macrocyclic crown ether compounds 在隐式化合物和大环冠醚化合物存在下，甲醇和正丁醇的碱金属盐引发甲基丙烯酸甲酯的均相聚合
British Polymer Journal Pub Date : 1986-05-01 DOI: 10.1002/PI.4980180306
M. Viguier, A. Collet, F. Schué, B. Mula
{"title":"Homogeneous polymerisation of methylmethacrylate initiated by alkali metal salts of methanol and t-butyl alcohol in the presence of cryptands and macrocyclic crown ether compounds","authors":"M. Viguier, A. Collet, F. Schué, B. Mula","doi":"10.1002/PI.4980180306","DOIUrl":"https://doi.org/10.1002/PI.4980180306","url":null,"abstract":"The polymerisation of methylmethacrylate initiated by alkali alkoxides is greatly promoted in the presence of macrocyclic compounds, cryptands and crown ethers. The solubility in toluene and the reactivity of alkoxides is enhanced by these complexing agents. Polymerisations have been carried out in a non-polar solvent in the homogeneous phase.","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87133573","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
Differential Scanning Calorimetry Cure Studies of Tetra‐N‐glycidyldiaminodiphenylmethane Epoxy Resins 3 ‐ Reaction with Dicyandiamide 四- N -缩水甘油酯二氨基二苯甲烷环氧树脂与双氰胺反应的差示扫描量热法固化研究
British Polymer Journal Pub Date : 1986-05-01 DOI: 10.1002/PI.4980180311
J. M. Barton, D. Greenfield
{"title":"Differential Scanning Calorimetry Cure Studies of Tetra‐N‐glycidyldiaminodiphenylmethane Epoxy Resins 3 ‐ Reaction with Dicyandiamide","authors":"J. M. Barton, D. Greenfield","doi":"10.1002/PI.4980180311","DOIUrl":"https://doi.org/10.1002/PI.4980180311","url":null,"abstract":"Continuation of work on the curing characteristics of an epoxy resin which is widely used as a composite matrix is reported. Results are given of study of the cure of the resin with dicyandiamide as hardener and diuron as accelerator, using differential scanning calorimetry to monitor the cure. The effect of diuron on the cure of the resin with an aromatic amine curing agent is also described. Distinctive effects of composition are found and values of the apparent activation energy of the curing reaction are derived.","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81409917","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: 13
13C Nuclear Magnetic Resonance Studies of Phenol‐Formaldehyde Resins 1 ‐ Model Compounds 苯酚-甲醛树脂模型化合物的13C核磁共振研究
British Polymer Journal Pub Date : 1986-05-01 DOI: 10.1002/PI.4980180307
R. Pethrick, B. Thomson
{"title":"13C Nuclear Magnetic Resonance Studies of Phenol‐Formaldehyde Resins 1 ‐ Model Compounds","authors":"R. Pethrick, B. Thomson","doi":"10.1002/PI.4980180307","DOIUrl":"https://doi.org/10.1002/PI.4980180307","url":null,"abstract":"High resolution 13C n.m.r. data are presented for a series of model compounds generated by the acid catalysed reaction of either phenol or cresol with formalin. The pure compounds prepared for this study allow unambiguous identification of features associated with ortho-ortho, ortho-para and para-para linked moieties, and hence allow analysis of the sequence structure in the typical resin. To aid assignment of the spectra a comparison is made between the predictions of the spectra using simple additivity relationships and the experimentally observed shifts. It is found that the differences between theory and experiment vary systematically with structure, and averaged correction factors are presented for various characteristic structures.","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76624601","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: 17
Synthesis of poly(4,5-bis-hydroxy-1,3-cyclopentadienylene vinylene) from poly(6,8-(1,5-dichloro-2,4-dioxa-3-keto)-bicyclo [3.3.0] octylene vinylene). Generation of a conjugated polymer by hydrolysis of a precursor polymer 由聚(6,8-(1,5-二氯-2,4-二氧基-3-酮)-双环[3.3.0]辛基乙烯基)合成聚(4,5-二羟基-1,3-环戊二烯乙烯基)。前驱体聚合物水解生成共轭聚合物
British Polymer Journal Pub Date : 1986-05-01 DOI: 10.1002/PI.4980180305
W. Feast, Kevin Harper
{"title":"Synthesis of poly(4,5-bis-hydroxy-1,3-cyclopentadienylene vinylene) from poly(6,8-(1,5-dichloro-2,4-dioxa-3-keto)-bicyclo [3.3.0] octylene vinylene). Generation of a conjugated polymer by hydrolysis of a precursor polymer","authors":"W. Feast, Kevin Harper","doi":"10.1002/PI.4980180305","DOIUrl":"https://doi.org/10.1002/PI.4980180305","url":null,"abstract":"Hydrolysis of poly(6,8-(1,5-dichloro-2,4-dioxa-3-keto)bicyclo[3.3.0]octylene vinylene) results in the formation of poly(4,5-bis-hydroxy-1,3-cyclopentadienylene vinylene), a new conjugated polymer. This new system can be generated as a surface layer on its precursor polymer. The conversion process has been studied with the aid of infrared and optical spectroscopy, elemental analysis, microscopy and conductivity measurements.","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75940812","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: 4
Molten State Transition in Thermoplastic Rubber 热塑性橡胶中的熔融态转变
British Polymer Journal Pub Date : 1986-05-01 DOI: 10.1002/PI.4980180310
S. Canevarolo, A. Birley, D. Hemsley
{"title":"Molten State Transition in Thermoplastic Rubber","authors":"S. Canevarolo, A. Birley, D. Hemsley","doi":"10.1002/PI.4980180310","DOIUrl":"https://doi.org/10.1002/PI.4980180310","url":null,"abstract":"The flow characteristics of styrene-butadiene-styrene thermoplastic rubbers have been studied and the results compared with earlier static measurements. Computer best-fitting shift factors and inverse Melt Flow Index were plotted according to two mathematical models, Arrhenius and Vogel. Fulcher, Tamman and Hesse (VFTH). One transition was observed in both models, with appreciable reduction in the apparent activation energy of flow above this transition. This melt transition was associated with the temperature above which the PS chains can be removed from the PS rich phase by the rubbery chains. This allows rearrangement of the domain structure in a static condition or facilitates flow. Birefringence measurements support the model proposed.","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74825032","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: 5
Reactions of Living Polytetrahydrofuran with Amines V ‐ Tertiary Amine Terminated Polybutadienes; The Synthesis of Novel Ionically Linked Block Copolymers 活性聚四氢呋喃与氨基V -叔胺端聚丁二烯的反应新型离子连接嵌段共聚物的合成
British Polymer Journal Pub Date : 1986-05-01 DOI: 10.1002/PI.4980180308
J. Hurley, D. H. Richards, M. J. Stewart
{"title":"Reactions of Living Polytetrahydrofuran with Amines V ‐ Tertiary Amine Terminated Polybutadienes; The Synthesis of Novel Ionically Linked Block Copolymers","authors":"J. Hurley, D. H. Richards, M. J. Stewart","doi":"10.1002/PI.4980180308","DOIUrl":"https://doi.org/10.1002/PI.4980180308","url":null,"abstract":"The reactions of mono- and difunctional tertiary amine ended polybutadienes with mono- and difunctional living cationic poly THF have been studied. It is shown that the reaction to form quaternary ammonium linking groups takes place rapidly in all cases, and AB. ABA, BAB and (AB) block copolymers have been prepared. The efficiency of the process is extremely high and the degree of conversion is essentially controlled by the efficiency with which the terminal tertiary amine groups can be introduced on to the polybutadiene. The block copolymers show anomalous behaviour on gel permeation chromatography columns and this has been related to a specific interaction of the created ionic groups with polar species on the column packing. This effect is greatest with (AB) block copolymers where substantial proportions are retained indefinitely on the columns.","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90274637","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
Polyacetylene: Chemistry, physics, and material science. James C. W. Chien, Academic Press, Orlando, Florida, 1984. pp. xiv+634, price $89.00. ISBN 0-1 2- 172460-3 聚乙炔:化学、物理和材料科学。钱志伟，学术出版社，奥兰多，佛罗里达，1984年。Pp. xiv+634，价格89.00美元。Isbn 0-1 2- 172460-3
British Polymer Journal Pub Date : 1986-05-01 DOI: 10.1002/PI.4980180314
W. Feast
{"title":"Polyacetylene: Chemistry, physics, and material science. James C. W. Chien, Academic Press, Orlando, Florida, 1984. pp. xiv+634, price $89.00. ISBN 0-1 2- 172460-3","authors":"W. Feast","doi":"10.1002/PI.4980180314","DOIUrl":"https://doi.org/10.1002/PI.4980180314","url":null,"abstract":"","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85118945","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
The Technology of Phenol‐Formaldehyde Moulding Powders 1 ‐ Characterisation of Novolak Resins and Derived Moulding Powders 酚醛模塑粉技术1——Novolak树脂及其衍生模塑粉的表征
British Polymer Journal Pub Date : 1986-05-01 DOI: 10.1002/PI.4980180303
A. Birley, Arthur Blinkhorn
{"title":"The Technology of Phenol‐Formaldehyde Moulding Powders 1 ‐ Characterisation of Novolak Resins and Derived Moulding Powders","authors":"A. Birley, Arthur Blinkhorn","doi":"10.1002/PI.4980180303","DOIUrl":"https://doi.org/10.1002/PI.4980180303","url":null,"abstract":"This research programme has been concerned with the technology of phenol-formaldehyde resins and of moulding powders based on them. This paper reports the characterisation of the prepolymer (Novolak) and concentrates on the results obtained by gel permeation chromatography with an infrared detector. A variety of frequencies have been employed, corresponding to different components in the resin, and the best separation was obtained by monitoring the phenolic hydroxyl at 3400 cm−1. It has been concluded that both commercial Novolak and prepolymer extracted from moulding powder contain a substantial fraction of high molecular weight material.","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86441629","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
Adhesives in engineering design. By W. A. Lees, The Design Council, London, 1984. pp. 152, price £16.95. ISBN 0-85072-150-4 工程设计中的粘合剂。W. A. Lees，设计委员会，伦敦，1984年。第152页，售价16.95英镑。ISBN 0-85072-150-4
British Polymer Journal Pub Date : 1986-05-01 DOI: 10.1002/PI.4980180322
V. Vohralík
{"title":"Adhesives in engineering design. By W. A. Lees, The Design Council, London, 1984. pp. 152, price £16.95. ISBN 0-85072-150-4","authors":"V. Vohralík","doi":"10.1002/PI.4980180322","DOIUrl":"https://doi.org/10.1002/PI.4980180322","url":null,"abstract":"","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73430420","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
Polymer permeability. Edited by J. Comyn, Elsevier Applied Science Publishers, London, 1985. pp. vii+383, price £45.00. ISBN 0‐85334‐322‐5 聚合物渗透。J. Comyn编辑，Elsevier应用科学出版社，伦敦，1985年。Pp. vii+383，价格为45.00英镑。ISBN 0还是85334还是322 5
British Polymer Journal Pub Date : 1986-05-01 DOI: 10.1002/PI.4980180315
G. Park
{"title":"Polymer permeability. Edited by J. Comyn, Elsevier Applied Science Publishers, London, 1985. pp. vii+383, price £45.00. ISBN 0‐85334‐322‐5","authors":"G. Park","doi":"10.1002/PI.4980180315","DOIUrl":"https://doi.org/10.1002/PI.4980180315","url":null,"abstract":"","PeriodicalId":9298,"journal":{"name":"British Polymer Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1986-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77353546","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
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