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Journal of the Society of Rubber Industry,Japan最新文献

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Polymer Modification Exploiting Stable Nitrile N-Oxide 利用稳定的腈n -氧化物进行聚合物改性
Journal of the Society of Rubber Industry,Japan Pub Date : 2011-11-01 DOI: 10.2324/GOMU.84.111
Y. Koyama, Akishige Seo, T. Takata
{"title":"Polymer Modification Exploiting Stable Nitrile N-Oxide","authors":"Y. Koyama, Akishige Seo, T. Takata","doi":"10.2324/GOMU.84.111","DOIUrl":"https://doi.org/10.2324/GOMU.84.111","url":null,"abstract":"This paper describes the powerful practical modification method of elastomers with unsaturated bonds exploiting kinetically stabilized nitrile N-oxides. The stable nitrile N-oxides enable the efficient 1,3-dipolar cycloaddition to both internal olefin and nitrile groups incorporating into versatile elastomers such as acrylonitrile butadiene rubber (NBR), natural rubber (NR), and ethylene-propylene-diene terpolymer (EPDM) to give the corresponding hetero aromatics-containing polymers. The reaction features i) catalyst-free procedure, ii) versatile applicability to various elastomers, iii) high yield, iv) high regio-selectivity, v) no by-product, and vi) remarkable acceleration of reaction rate under solvent-free condition. The scope and limitation of the modification reaction are discussed in detail.","PeriodicalId":405949,"journal":{"name":"Journal of the Society of Rubber Industry,Japan","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127456011","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
Light Scattering Method for Analyzing Deformation Behavior of Elastomers 弹性体变形行为分析的光散射法
Journal of the Society of Rubber Industry,Japan Pub Date : 2011-10-01 DOI: 10.2324/GOMU.84.94
H. Saito
{"title":"Light Scattering Method for Analyzing Deformation Behavior of Elastomers","authors":"H. Saito","doi":"10.2324/GOMU.84.94","DOIUrl":"https://doi.org/10.2324/GOMU.84.94","url":null,"abstract":"Light scattering method is powerful to clarify the change of superstructure of elastomers during the deformation process. Reversible deformation of the domain and the spherulite in polyurethane elastomers were revealed by the reversible change of the light scattering patterns during the stretching and recovery processes. Hv light scattering appeared at low strain and the intensity increased with strain in cross-linked elastomers before the strain-induced crystallization, suggesting that the local ordering is generated at low strain and the ordering increases with strain before the strain-induced crystallization. The orientation of rubber in the two-phase plastic/rubber polymer blends can be estimated separately by analyzing the Hv light scattering caused by the local ordering before the strain-induced crystallization.","PeriodicalId":405949,"journal":{"name":"Journal of the Society of Rubber Industry,Japan","volume":"260 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131851351","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
Analyses of Hierarchical Structures of Soft Materials by Using Combined Scattering Methods 用联合散射方法分析软质材料的分层结构
Journal of the Society of Rubber Industry,Japan Pub Date : 2011-05-01 DOI: 10.2324/GOMU.84.7
M. Takenaka
{"title":"Analyses of Hierarchical Structures of Soft Materials by Using Combined Scattering Methods","authors":"M. Takenaka","doi":"10.2324/GOMU.84.7","DOIUrl":"https://doi.org/10.2324/GOMU.84.7","url":null,"abstract":"Most of soft materials form hierarchical structures and their rich varieties of mechanical properties originate from the structures and the correlation among hierarchies. Here we discuss how we can analyze the hierarchical structures in soft materials by using the combination of various scattering methods. We describe the features of each scattering method briefly and show the examples of the analyses of soft materials with the combined scattering methods.","PeriodicalId":405949,"journal":{"name":"Journal of the Society of Rubber Industry,Japan","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117205845","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
The Influence of the Degree of Silane Coupling Agents - Polymers Interaction on the Viscoelastic Properties 硅烷偶联剂-聚合物相互作用程度对粘弹性的影响
Journal of the Society of Rubber Industry,Japan Pub Date : 2010-12-01 DOI: 10.2324/GOMU.83.167
Nakamura Norihiko, Hirofumi Hayashi
{"title":"The Influence of the Degree of Silane Coupling Agents - Polymers Interaction on the Viscoelastic Properties","authors":"Nakamura Norihiko, Hirofumi Hayashi","doi":"10.2324/GOMU.83.167","DOIUrl":"https://doi.org/10.2324/GOMU.83.167","url":null,"abstract":"This paper described the influence of the degree of interaction between silane coupling agents and polymers on the viscoelastic properties of silica-filled rubber.The degree of interaction was determined by the tensile modulus and the change of tanδ of green and vulcanized compounds. It was found that the tensile modulus was highest with MPTES (mercaptopropyltriethoxysilane) and lowest with OTES (octyltriethoxysilane). TESPD (bis(triethoxysilylpropyl) disulfide) laid in between. These results were attributed to the difference of the reactivity with polymers and silane coupling agents, where the change of tanδ of green and vulcanized compounds was biggest with MPTES and smallest with OTES. In other words, it was suggested that the lower tanδ of MPTES was caused by higher degree of interaction between the silane coupling agent and the polymer.","PeriodicalId":405949,"journal":{"name":"Journal of the Society of Rubber Industry,Japan","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129681715","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
Overview of Living Cationic Polymerization. Part 2: Living Cationic Polymerization of Vinyl Ethers 活性阳离子聚合概述。第2部分:乙烯基醚的活性阳离子聚合
Journal of the Society of Rubber Industry,Japan Pub Date : 2010-11-01 DOI: 10.2324/GOMU.83.151
S. Kanaoka, S. Aoshima
{"title":"Overview of Living Cationic Polymerization. Part 2: Living Cationic Polymerization of Vinyl Ethers","authors":"S. Kanaoka, S. Aoshima","doi":"10.2324/GOMU.83.151","DOIUrl":"https://doi.org/10.2324/GOMU.83.151","url":null,"abstract":"The second installment of the three-part series of a special lecture for living cationic polymerization presents brief history of living polymerization of vinyl ethers. Recent progress in developing new initiating systems, especially base-assisting living systems, is highlighted after basic methodologies for living cationic polymerization is described.","PeriodicalId":405949,"journal":{"name":"Journal of the Society of Rubber Industry,Japan","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124977398","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
Flow-Induced Multilamellar Vesicle Formation of Bilayer Membrane Systems 流动诱导的双层膜系统的多层囊泡形成
Journal of the Society of Rubber Industry,Japan Pub Date : 2010-10-01 DOI: 10.2324/GOMU.83.95
S. Fujii
{"title":"Flow-Induced Multilamellar Vesicle Formation of Bilayer Membrane Systems","authors":"S. Fujii","doi":"10.2324/GOMU.83.95","DOIUrl":"https://doi.org/10.2324/GOMU.83.95","url":null,"abstract":"Shear-induced instability of bilayer membrane systems has attracted much attention. One of the most interesting shear effects is a shear-induced structural transition from the lamellar to the multilamellar vesicle. In this review, we show two topics related to the non-equilibrium structural formation phenomena under shear; the influence of the triblock copolymer on the shear-induced multilamellar vesicle formation, and the shear quench-induced discontinuous size change of the multilamellar vesicle. In the first topic, we study the effect of the triblock copolymer on the shear-induced lamellar-to-multilamellar vesicle formation. Shear-induced multilamellar vesicle formation behavior is quite sensitive to the interaction between grafted polymer chains and surfactant bilayer membranes. Entropy based contribution to the modulus of bilayer controls the shear-induced multilamellar vesicle formation behavior. In the second topic, we study how the kinetic pathway on the size change process of the multilamellar vesicle is decided under shear. These studies will give us a hint how the soft matter systems change their structure under non-equilibrium states.","PeriodicalId":405949,"journal":{"name":"Journal of the Society of Rubber Industry,Japan","volume":"274 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116499103","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
Degradation Mechanism of Peroxide-crosslinked EPDMs by Residual Peroxide 残余过氧化物降解过氧化物交联epdm的机理
Journal of the Society of Rubber Industry,Japan Pub Date : 2010-09-01 DOI: 10.2324/GOMU.83.65
K. Nakayama, Y. Ohtake
{"title":"Degradation Mechanism of Peroxide-crosslinked EPDMs by Residual Peroxide","authors":"K. Nakayama, Y. Ohtake","doi":"10.2324/GOMU.83.65","DOIUrl":"https://doi.org/10.2324/GOMU.83.65","url":null,"abstract":"The chemical structures of aged dicumyl peroxide(DCP)-crosslinked EPDMs were investigated with FT-IR and 13C high-resolution solid state NMR. The mechanism of degradation induced by residual DCP was studied in DCP-crosslinked EPDMs.The thermal degradation of DCP-crosslinked EPDMs occurred with the disappearance of C=C bond of ethylidene norbornene and generation of carbonyl, carboxy and hydroxy groups and the scission of polymer chains. It can be considered that the residual DCP in DCP-crosslinked EPDMs accelerated the production of peroxide and hydroperoxide. The peroxide and hydroperoxide are extremely unstable, thereby causing various degradation reactions such as production of radicals, chain scission, and oxidation reactions of EPDM polymer.","PeriodicalId":405949,"journal":{"name":"Journal of the Society of Rubber Industry,Japan","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123466329","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
N-nitrosamine (TRGS 552)
Journal of the Society of Rubber Industry,Japan Pub Date : 2010-08-15 DOI: 10.2324/GOMU.83.243
Mitsunori Aoyama
{"title":"N-nitrosamine (TRGS 552)","authors":"Mitsunori Aoyama","doi":"10.2324/GOMU.83.243","DOIUrl":"https://doi.org/10.2324/GOMU.83.243","url":null,"abstract":"TRGS 552 in Germany regulates certain N-nitrosamine compounds in rubber articles.N-nitrosamines are carcinogenic substances produced by reaction between nitrogen oxides and amines.Amines for the rubber industry has been used as a raw material such as rubber accelerator, is essential for rubber materials.N-nitrosamines are not regulated in Japan, but the contents of TRGS 552 will be helpful to the rubber industry.","PeriodicalId":405949,"journal":{"name":"Journal of the Society of Rubber Industry,Japan","volume":"401 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131592593","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
Living Radical Polymerization 4. Stereospecific Living Radical Polymerization 活性自由基聚合立体定向活性自由基聚合
Journal of the Society of Rubber Industry,Japan Pub Date : 2010-06-01 DOI: 10.2324/GOMU.83.35
S. Yamago, Yasuyuki Nakamura
{"title":"Living Radical Polymerization 4. Stereospecific Living Radical Polymerization","authors":"S. Yamago, Yasuyuki Nakamura","doi":"10.2324/GOMU.83.35","DOIUrl":"https://doi.org/10.2324/GOMU.83.35","url":null,"abstract":"Living radical polymerization (LRP) enables the control of molecular weight and molecular weight distribution of polymers synthesized, but it is no effect on stereoregulation (tacticity) of the polymer. With the progress of stereospecific radical polymerizations, several attempts have been made to combine it with LRP to achieve simultaneous control of molecular weight, molecular weight distribution, and tacticity. This forth article describes these stereospecific LRPs. Synthetic routes to stereoblock polymers and stereogradient polymers are also described.","PeriodicalId":405949,"journal":{"name":"Journal of the Society of Rubber Industry,Japan","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131374475","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
Fatigue Testing Methods for Elastomer 弹性体疲劳试验方法
Journal of the Society of Rubber Industry,Japan Pub Date : 2010-01-10 DOI: 10.2324/GOMU.83.20
K. Tsunoda
{"title":"Fatigue Testing Methods for Elastomer","authors":"K. Tsunoda","doi":"10.2324/GOMU.83.20","DOIUrl":"https://doi.org/10.2324/GOMU.83.20","url":null,"abstract":"This paper reviews testing methods of fatigue crack growth behavior for elastomer. Standardized testing methods in JIS (Japan Industrial Standard) are summarized first, and fundamental literatures on fracture mechanics in elastic materials are summarized in second section. One part of author’s recent research for evaluating the contribution of cyclic crack growth component on total crack growth rate is to be explained, finally.","PeriodicalId":405949,"journal":{"name":"Journal of the Society of Rubber Industry,Japan","volume":"176 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120994197","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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