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Photophysics of Polycyanate Resin and Triazine Compounds. 聚氰酸酯树脂和三嗪化合物的光物理学。
American Chemical Society, Polymer Preprints, Division of Polymer Chemistry Pub Date : 1997-06-20 DOI: 10.21236/ada327097
Y. Xu, C. Sung
{"title":"Photophysics of Polycyanate Resin and Triazine Compounds.","authors":"Y. Xu, C. Sung","doi":"10.21236/ada327097","DOIUrl":"https://doi.org/10.21236/ada327097","url":null,"abstract":"Abstract : Dicyanate ester resins have a strong fluorescence and phosphorescence emission. In this work, we report fluorescence and UV spectroscopic characterization of triazine compounds, and identify that the strong fluorescence emission comes from substituted triazine rings which are formed during the cure reaction of polycyanate resins. A series of model compounds were investigated. The results show that substituted triazine rings have similar fluorescence emission to triazine vapor. The emission at 350nm corresponds to sharp emission (335nm) in triazine vapor, and that at 420nm to broad emission (395nm). The large aromatic substituent enhances broad emission which corresponds to the singlet-triplet coupling, and solvation decreases it. When samples are photo or thermally excited, the coupling states start to interact with environment and split to the original states. The split depends on excitation time, concentration and polarity of media.","PeriodicalId":7648,"journal":{"name":"American Chemical Society, Polymer Preprints, Division of Polymer Chemistry","volume":"63 1","pages":"208-209"},"PeriodicalIF":0.0,"publicationDate":"1997-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78206677","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
Controlled-growth free-radical polymerization of methacrylate esters: reversible chain transfer versus reversible termination 甲基丙烯酸酯控制生长自由基聚合:可逆链转移与可逆终止
American Chemical Society, Polymer Preprints, Division of Polymer Chemistry Pub Date : 1997-04-01 DOI: 10.1021/bk-1998-0685.ch021
G. Moad, A. Anderson, F. Ercole, Charles H. J. Johnson, J. Krstina, C. L. Moad, E. Rizzardo, T. Spurling, S. Thang
{"title":"Controlled-growth free-radical polymerization of methacrylate esters: reversible chain transfer versus reversible termination","authors":"G. Moad, A. Anderson, F. Ercole, Charles H. J. Johnson, J. Krstina, C. L. Moad, E. Rizzardo, T. Spurling, S. Thang","doi":"10.1021/bk-1998-0685.ch021","DOIUrl":"https://doi.org/10.1021/bk-1998-0685.ch021","url":null,"abstract":"","PeriodicalId":7648,"journal":{"name":"American Chemical Society, Polymer Preprints, Division of Polymer Chemistry","volume":"111 1","pages":"744-745"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72782344","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: 35
Nanostructured Hybrid Organic/Inorganic Materials, Silsesquioxane Modified Plastics 纳米结构有机/无机杂化材料，硅氧烷改性塑料
American Chemical Society, Polymer Preprints, Division of Polymer Chemistry Pub Date : 1996-01-01 DOI: 10.21236/ada409298
T. Haddad, R. Stapleton, H. Jeon, P. Mather, J. Lichtenhan
{"title":"Nanostructured Hybrid Organic/Inorganic Materials, Silsesquioxane Modified Plastics","authors":"T. Haddad, R. Stapleton, H. Jeon, P. Mather, J. Lichtenhan","doi":"10.21236/ada409298","DOIUrl":"https://doi.org/10.21236/ada409298","url":null,"abstract":"Abstract : The design of new materials with enhanced properties continues to be a driver for the investigation of hybrid inorganic/organic polymers. As hybrid materials are copolymers based on inorganic and organic comonomers, they display enhanced properties by bridging the property space between two dissimilar types of compounds. A typical hybrid material will contain a crosslinked inorganic phase bound (often covalently) with an organic phase. Depending on the relative amounts of the two components, the properties of the resulting hybrid are intermediate between those of an inorganic and an organic polymer. Such methodology%' can be used to create either plastic inorganics or toughened plastics, and is superior to traditional blending methods. However, because such materials are crosslinked networks, they are difficult to study and control at the molecular level and are also difficult to process.","PeriodicalId":7648,"journal":{"name":"American Chemical Society, Polymer Preprints, Division of Polymer Chemistry","volume":"2 1","pages":"496-497"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89451653","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: 10
Light scattering studies of polyelectrolyte complex formation - Effect of polymer concentration 聚电解质复合物形成的光散射研究。聚合物浓度的影响
American Chemical Society, Polymer Preprints, Division of Polymer Chemistry Pub Date : 1994-01-01 DOI: 10.1021/BK-1994-0548.CH016
H. Dautzenberg, G. Rother, J. Hartmann
{"title":"Light scattering studies of polyelectrolyte complex formation - Effect of polymer concentration","authors":"H. Dautzenberg, G. Rother, J. Hartmann","doi":"10.1021/BK-1994-0548.CH016","DOIUrl":"https://doi.org/10.1021/BK-1994-0548.CH016","url":null,"abstract":"","PeriodicalId":7648,"journal":{"name":"American Chemical Society, Polymer Preprints, Division of Polymer Chemistry","volume":"160 1","pages":"210-224"},"PeriodicalIF":0.0,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76981443","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
Temperature dependence of radiation chemistry of polymers 聚合物辐射化学的温度依赖性
American Chemical Society, Polymer Preprints, Division of Polymer Chemistry Pub Date : 1990-01-01 DOI: 10.1021/bk-1991-0475.ch010
Garrett R.Wayne, J. David, T. Tri, A. Karen, H. James, M. C. P. Senake, J. P. Peter
{"title":"Temperature dependence of radiation chemistry of polymers","authors":"Garrett R.Wayne, J. David, T. Tri, A. Karen, H. James, M. C. P. Senake, J. P. Peter","doi":"10.1021/bk-1991-0475.ch010","DOIUrl":"https://doi.org/10.1021/bk-1991-0475.ch010","url":null,"abstract":"The changes in the properties of polymer materials which occur when they are subjected to high-energy radiation, e.g. electron beams and gamma rays, are a result of chemical reactions initiated in the polymer molecules by absorption of radiation energy. There is increasing interest in the utilization of polymer materials in radiation environments where the temperature may be less than -270°C or above 500°C, as in aerospace applications or particle accelerators. The effect of temperature on the radiation chemistry of polymers has not been studied extensively. In this paper, we report the temperature dependence of scission, crosslinking, formation of small molecules and depropagation in the radiation chemistry of polymers.","PeriodicalId":7648,"journal":{"name":"American Chemical Society, Polymer Preprints, Division of Polymer Chemistry","volume":"38 1","pages":"333-334"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76343491","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
BEHAVIOR OF A TWISTED INTRAMOLECULAR CHARGE TRANSFER COMPOUND BONDED TO POLY(METHYL METHACRYLATE). 与聚甲基丙烯酸甲酯结合的扭曲分子内电荷转移化合物的行为。
American Chemical Society, Polymer Preprints, Division of Polymer Chemistry Pub Date : 1986-09-01 DOI: 10.1021/bk-1987-0358.ch012
R. Hayashi, S. Tazuke, C. Frank
{"title":"BEHAVIOR OF A TWISTED INTRAMOLECULAR CHARGE TRANSFER COMPOUND BONDED TO POLY(METHYL METHACRYLATE).","authors":"R. Hayashi, S. Tazuke, C. Frank","doi":"10.1021/bk-1987-0358.ch012","DOIUrl":"https://doi.org/10.1021/bk-1987-0358.ch012","url":null,"abstract":"","PeriodicalId":7648,"journal":{"name":"American Chemical Society, Polymer Preprints, Division of Polymer Chemistry","volume":"4 1","pages":"304-305"},"PeriodicalIF":0.0,"publicationDate":"1986-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85494365","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
PULSE RADIOLYSIS STUDIES ON THE MECHANISM OF THE HIGH SENSITIVITY OF CHLOROMETHYLATED POLYSTYRENE AS AN ELECTRON NEGATIVE RESIST. 脉冲辐射解法研究了氯甲基化聚苯乙烯作为电子负极抗蚀剂的高灵敏度机理。
American Chemical Society, Polymer Preprints, Division of Polymer Chemistry Pub Date : 1984-12-01 DOI: 10.1021/bk-1984-0266.ch005
Y. Tabata, S. Tagawa, M. Washio
{"title":"PULSE RADIOLYSIS STUDIES ON THE MECHANISM OF THE HIGH SENSITIVITY OF CHLOROMETHYLATED POLYSTYRENE AS AN ELECTRON NEGATIVE RESIST.","authors":"Y. Tabata, S. Tagawa, M. Washio","doi":"10.1021/bk-1984-0266.ch005","DOIUrl":"https://doi.org/10.1021/bk-1984-0266.ch005","url":null,"abstract":"","PeriodicalId":7648,"journal":{"name":"American Chemical Society, Polymer Preprints, Division of Polymer Chemistry","volume":"1 1","pages":"151-163"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76482832","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
Poly (N-Acyl Ethyleneimines) with Polarizable Aromatic Side Chain Substituents and Their Complexes: Synthesis, Structure and Electronic Properties 具有可极化芳侧链取代基的聚n -酰基乙烯亚胺及其配合物:合成、结构和电子性质
American Chemical Society, Polymer Preprints, Division of Polymer Chemistry Pub Date : 1984-01-01 DOI: 10.1007/978-1-4684-4619-7_7
M. Litt, J. Rodríguez, H. Nava, JinBaek Kim, T. Mcclelland, W. Gordon, M. Dyan
{"title":"Poly (N-Acyl Ethyleneimines) with Polarizable Aromatic Side Chain Substituents and Their Complexes: Synthesis, Structure and Electronic Properties","authors":"M. Litt, J. Rodríguez, H. Nava, JinBaek Kim, T. Mcclelland, W. Gordon, M. Dyan","doi":"10.1007/978-1-4684-4619-7_7","DOIUrl":"https://doi.org/10.1007/978-1-4684-4619-7_7","url":null,"abstract":"","PeriodicalId":7648,"journal":{"name":"American Chemical Society, Polymer Preprints, Division of Polymer Chemistry","volume":"10 1","pages":"113-131"},"PeriodicalIF":0.0,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87115669","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
The influence of vacuole formation and growth on the mechanical behavior of polymers. 液泡的形成和生长对聚合物力学行为的影响。
American Chemical Society, Polymer Preprints, Division of Polymer Chemistry Pub Date : 1978-01-01 DOI: 10.1021/bk-1979-0095.ch017
J. FarrisR, D. TsaiY
{"title":"The influence of vacuole formation and growth on the mechanical behavior of polymers.","authors":"J. FarrisR, D. TsaiY","doi":"10.1021/bk-1979-0095.ch017","DOIUrl":"https://doi.org/10.1021/bk-1979-0095.ch017","url":null,"abstract":"","PeriodicalId":7648,"journal":{"name":"American Chemical Society, Polymer Preprints, Division of Polymer Chemistry","volume":"10 1","pages":"816-820"},"PeriodicalIF":0.0,"publicationDate":"1978-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82887230","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: 2
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