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Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals最新文献

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Transition Behavior of Polyelectrolyte Brushes Depending on Polymer Chain Density 聚合物链密度对聚电解质电刷过渡行为的影响
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals Pub Date : 2001-10-01 DOI: 10.1080/10587250108024758
S. Hayashi, T. Abe, N. Higashi, M. Niwa, K. Kurihara
{"title":"Transition Behavior of Polyelectrolyte Brushes Depending on Polymer Chain Density","authors":"S. Hayashi, T. Abe, N. Higashi, M. Niwa, K. Kurihara","doi":"10.1080/10587250108024758","DOIUrl":"https://doi.org/10.1080/10587250108024758","url":null,"abstract":"Abstract Brush layers of polyelectrolytes, ionized poly(L-lysine) (PLL) or poly(L-glutamic acid) (PLGA), at desired densities were prepared by the Langmuir-Blodgett (LB) deposition of amphiphiles bearing PLL or PLGA segments as hydrophilic groups, and subjected to the surface force measurements. Abrupt changes in the surface force, the surface potential, and the transfer ratio of the brush layers were observed at a critical density. The present data is in good agreement with our previous report on the jump in the compressibility of the brushes, and supports the existence of the density dependent transition of polyelectrolytes in solutions.","PeriodicalId":18940,"journal":{"name":"Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals","volume":"57 1","pages":"349 - 354"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88301776","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
Ultrafast Reflection Control based on Photoinduced Complex Refractive Index Changes in Guided Mode Thin Films Containing Indium Phthalocyanine 基于光致复折射率变化的酞菁铟导模薄膜超快反射控制
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals Pub Date : 2001-10-01 DOI: 10.1080/10587250108030046
T. Nagamura, Tatsuo Adachi, Iori Yoshida, H. Inoue, H. Heckmann, M. Hanack
{"title":"Ultrafast Reflection Control based on Photoinduced Complex Refractive Index Changes in Guided Mode Thin Films Containing Indium Phthalocyanine","authors":"T. Nagamura, Tatsuo Adachi, Iori Yoshida, H. Inoue, H. Heckmann, M. Hanack","doi":"10.1080/10587250108030046","DOIUrl":"https://doi.org/10.1080/10587250108030046","url":null,"abstract":"Abstract Ultrafast all-optical reflection control was achieved by complex refractive index changes upon photoexcitation of indium phthalocyanine in a guided mode geometry device. It gave a few microseconds response mostly characteristic to the lifetime of the excited triplet state.","PeriodicalId":18940,"journal":{"name":"Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals","volume":"1 1","pages":"102 - 97"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89387484","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: 16
Luminescent and Morphological Properties of Color Tuning Device Composed of Alq3 and PDPMA doped by Fluorescent Dye 荧光染料掺杂Alq3和PDPMA组成的调色器件的发光和形态特性
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals Pub Date : 2001-10-01 DOI: 10.1080/10587250108024772
Sook Jung, Eugene Kim, S. Oh, C. Lee
{"title":"Luminescent and Morphological Properties of Color Tuning Device Composed of Alq3 and PDPMA doped by Fluorescent Dye","authors":"Sook Jung, Eugene Kim, S. Oh, C. Lee","doi":"10.1080/10587250108024772","DOIUrl":"https://doi.org/10.1080/10587250108024772","url":null,"abstract":"Abstract Organic EL device with a dye-doped polymeric hole transporting layer, i.e. a device consisting of ITO / dye doped Poly[N-(p-3-diphenylamine)phenylmethacrylamide](PDPMA) / Alq3, was fabricated and investigated. Using three different fluorescent dyes (Nile red, DCM, and TPP) at various compositions as guest emitting materials, the relations among the spectral overlap, emission characteristics, the physical, chemical and morphological properties were studied.","PeriodicalId":18940,"journal":{"name":"Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals","volume":"74 1","pages":"415 - 418"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85955065","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
Fabrication, Characterization and Optical Properties of Epitaxially Grown Oligomer/polymer Double Layers 外延生长低聚物/聚合物双层材料的制备、表征及光学性质
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals Pub Date : 2001-10-01 DOI: 10.1080/10587250108030080
Y. Ueda, T. Murakami, Sato Masaki, Jin Chen, J. Ni, Y. Yoshida, N. Tanigaki, K. Yase, Daike K Wang
{"title":"Fabrication, Characterization and Optical Properties of Epitaxially Grown Oligomer/polymer Double Layers","authors":"Y. Ueda, T. Murakami, Sato Masaki, Jin Chen, J. Ni, Y. Yoshida, N. Tanigaki, K. Yase, Daike K Wang","doi":"10.1080/10587250108030080","DOIUrl":"https://doi.org/10.1080/10587250108030080","url":null,"abstract":"Abstract Oligomeric dimethylsilane (ODMS) and 1,6-di-(p-methoxy-strtyl)benzene (DSB-1) grew epitaxially on the friction-transferred polydimethylsilane (PDMS) and poly(p-phenylenevinylene) (PPV) layers. The ODMS/PDMS and DSB-1/PPV double layers indicated the remarkable anisotropic feature in absorption and emission properties.","PeriodicalId":18940,"journal":{"name":"Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals","volume":"2016 1","pages":"245 - 248"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87869093","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
ESR Observation of Optically-Generated Polarons in Conjugated Electroluminescent Polymers 共轭电致发光聚合物中光生极化子的ESR观察
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals Pub Date : 2001-10-01 DOI: 10.1080/10587250108024712
S. Kuroda, K. Marumoto, Hideki Ito, N. Greenham, R. Friend, Y. Shimoi, S. Abe
{"title":"ESR Observation of Optically-Generated Polarons in Conjugated Electroluminescent Polymers","authors":"S. Kuroda, K. Marumoto, Hideki Ito, N. Greenham, R. Friend, Y. Shimoi, S. Abe","doi":"10.1080/10587250108024712","DOIUrl":"https://doi.org/10.1080/10587250108024712","url":null,"abstract":"Abstract Light-induced ESR (LESR) has been employed to study optically-generated polarons in two dialkoxy derivatives of poly(p-phenylene vinylene) (PPV), MEH-PPV and CN-PPV. A clear reduction of LESR linewidth is observed in CN-PPV compared with MEH-PPV and also with PPV previously reported, providing direct evidence that the polaron spin density predominantly reside on vinyl sites. This feature can be reproduced by the linewidth analysis based on a theoretical spin distribution of a polaron extending over approximately 4 phenyl rings.","PeriodicalId":18940,"journal":{"name":"Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals","volume":"18 1","pages":"159 - 162"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76475711","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
Layer-by-layer Assembled Molecular Films—II: Monolayers of Metal Nanoclusters from Photochemical and Sonochemical Conversion of Multilayered Ionic Films 一层一层组装的分子膜- ii:多层离子膜光化学和声化学转化的金属纳米团簇单层
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals Pub Date : 2001-10-01 DOI: 10.1080/10587250108024697
Xiaoyuan Li, Gang Yao
{"title":"Layer-by-layer Assembled Molecular Films—II: Monolayers of Metal Nanoclusters from Photochemical and Sonochemical Conversion of Multilayered Ionic Films","authors":"Xiaoyuan Li, Gang Yao","doi":"10.1080/10587250108024697","DOIUrl":"https://doi.org/10.1080/10587250108024697","url":null,"abstract":"Abstract Monolayer of uniform gold (Au) and platinum (Pt) nanoparticles were prepared from photochemical and sonochemical conversion of layer-by-layer assembled {R+|AuCl4 −}n, {R+|PtCl4 2-}n and {R+|PtCl6 2-}n films, respectively, where R+ is a cationic surfactant or a cationic polymer.","PeriodicalId":18940,"journal":{"name":"Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals","volume":"284 1","pages":"102 - 99"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73400297","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
Synthesis of Polyazomethine Type Conjugated Polymers as Light Emitting Materials 聚酰亚胺型共轭聚合物发光材料的合成
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals Pub Date : 2001-10-01 DOI: 10.1080/10587250108024748
L. Park, Y. Han, Sang Dae Kim, J. Hwang
{"title":"Synthesis of Polyazomethine Type Conjugated Polymers as Light Emitting Materials","authors":"L. Park, Y. Han, Sang Dae Kim, J. Hwang","doi":"10.1080/10587250108024748","DOIUrl":"https://doi.org/10.1080/10587250108024748","url":null,"abstract":"Abstract Aromatic dialdehyde based on phenothiazine and aromatic diamine were used to synthesize polyazomethine type conjugated polymer, poly(PZ-PI) which had good solubility in common organic solvents. The UV absorption maximum(λmax,UV) and edge(λedg,UV) of poly(PZ-PI) were observed at 415 and 510 nm, respectively. The threshold voltage of ITO/polymer/Mg and ITO/polymer/Alq3(100 Å)/Mg device was at 10 V and 7 V, respectively. Besides double layer LED with Alq3 exhibited both enhanced emission intensity and efficiency compared to the single layer LED.","PeriodicalId":18940,"journal":{"name":"Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals","volume":"5 1","pages":"309 - 312"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79723776","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
Poling and Relaxation Dynamics of a Nonlinear Optical Polyimide: Temperature-Dependent SHG Study 非线性光学聚酰亚胺的极化和弛豫动力学:温度相关的SHG研究
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals Pub Date : 2001-10-01 DOI: 10.1080/10587250108030058
G. Lee, Sang Woo Kim, Jungho Ma, T. Lim, Bong-keun So, Soo-Min Lee, Tae‐Dong Kim, K. Lee
{"title":"Poling and Relaxation Dynamics of a Nonlinear Optical Polyimide: Temperature-Dependent SHG Study","authors":"G. Lee, Sang Woo Kim, Jungho Ma, T. Lim, Bong-keun So, Soo-Min Lee, Tae‐Dong Kim, K. Lee","doi":"10.1080/10587250108030058","DOIUrl":"https://doi.org/10.1080/10587250108030058","url":null,"abstract":"Abstract The temperature dependence of second harmonic generation efficiency have been studied to investigate the poling and relaxation dynamics of polyamic acid carrying two end-on attached chromophores of DR1 and DANS. We interpreted the experimental results with the free volume model and thermal orientation fluctuation of structural components such as the nonlinear optical chromophores and main chains.","PeriodicalId":18940,"journal":{"name":"Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals","volume":"70 5 1","pages":"147 - 150"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79617941","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
Blue EL Devices with Arylethynylbenzene Derivatives as Emissive Materials 以芳基乙基苯衍生物为发射材料的蓝色发光器件
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals Pub Date : 2001-10-01 DOI: 10.1080/10587250108030031
M. Noto, H. Matsufuji, Y. Hori, M. Era
{"title":"Blue EL Devices with Arylethynylbenzene Derivatives as Emissive Materials","authors":"M. Noto, H. Matsufuji, Y. Hori, M. Era","doi":"10.1080/10587250108030031","DOIUrl":"https://doi.org/10.1080/10587250108030031","url":null,"abstract":"Abstract New arylethylbenzene derivatives were prepared as emissive material for organic electroluminescent (EL) device. In the EL device using an arylethynylbenzene with naphthyl group, intense blue emission was successfully observed; emission was peaking at 450 nm, and maximum luminance was 788 cdm−2 at a current density of 3.05 Acm−2","PeriodicalId":18940,"journal":{"name":"Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals","volume":"69 1","pages":"27 - 30"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75649490","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
Intermolecular Interaction between Polymer Monolayers and Poly(ethylene glycol) Monostearates at Air/Water Interface 聚合物单层膜与聚乙二醇单硬脂酸酯在空气/水界面的分子间相互作用
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals Pub Date : 2001-10-01 DOI: 10.1080/10587250108024682
Won‐Ki Lee, H. Nakahara, Hyuntaek Lim, W. Cho, C. Ha
{"title":"Intermolecular Interaction between Polymer Monolayers and Poly(ethylene glycol) Monostearates at Air/Water Interface","authors":"Won‐Ki Lee, H. Nakahara, Hyuntaek Lim, W. Cho, C. Ha","doi":"10.1080/10587250108024682","DOIUrl":"https://doi.org/10.1080/10587250108024682","url":null,"abstract":"Abstract Intermolecular interaction between PEG monostearate with two ethylene glycol units (N=2) and several polymer monolayers at air/water interface was investigated. For polymer monolayers, poly(methyl methacrylate) (PMMA) and poly(isopropenyl acetate) (PIPA) were spread on the distilled water. It was observed that the positive or negative deviation behavior between the mean surface area and the composition of the mixed monolayers in the condensed state is in good agreement with the miscibility behavior of the blends of the component polymers in the bulk state.","PeriodicalId":18940,"journal":{"name":"Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals","volume":"191 1","pages":"37 - 40"},"PeriodicalIF":0.0,"publicationDate":"2001-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75686279","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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