Journal of Polymer Science. Part B, Polymer Physics最新文献

Quantitative Image Analysis of Fractal‐Like Thin Films of Organic Semiconductors 有机半导体类分形薄膜的定量图像分析

3区工程技术

Journal of Polymer Science. Part B, Polymer Physics Pub Date : 2019-08-21 DOI: 10.26434/chemrxiv.6223610

Weikun Zhu, Erfan Mohammadi, Ying Diao

引用次数: 12

Polymer Physics: A Molecular Approach 高分子物理:分子方法

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Journal of Polymer Science. Part B, Polymer Physics Pub Date : 2012-11-05 DOI: 10.1007/978-3-7091-0670-9

Wenbing Hu

引用次数: 90

Abstraction of biochemical reaction systems on polytopes 多构体上生化反应体系的抽象

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Journal of Polymer Science. Part B, Polymer Physics Pub Date : 2011-01-01 DOI: 10.3182/20110828-6-IT-1002.03317

P. Collins, L.C.G.J.M. Habets, Schuppen van Jh, Ismael Cerna, J. Fabriková, David Šafránek

引用次数: 13

Nonlocal electron-phonon coupling. Influence on the nature of polarons [refereed] 非局域电子-声子耦合。对极化子性质的影响[参考文献]

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Journal of Polymer Science. Part B, Polymer Physics Pub Date : 2004-01-01 DOI: 10.1002/PSSC.200303645

V. Stojanović, Pa Peter Bobbert, Maj Thijs Michels

引用次数: 3

Nanocomposites of polyurethane with various organoclays: Thermomechanical properties, morphology, and gas permeability* This paper is dedicated to Prof. Jung Il Jin of Korea University, Seoul Korea, on the occasion of his 60th birthday. 聚氨酯与各种有机粘土的纳米复合材料:热力学性能、形态和透气性*这篇论文是在韩国首尔高丽大学Jung Il Jin教授60岁生日之际献给他的。

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Journal of Polymer Science. Part B, Polymer Physics Pub Date : 2002-04-01 DOI: 10.1002/POLB.10124.ABS

Jin-Hae Chang, Y. An

引用次数: 4

Gas-transport properties in crosslinked polymers. I. Aliphatic polyurethane–acrylate-based adhesives 交联聚合物中的气体输运性质。脂肪族聚氨酯-丙烯酸酯基胶粘剂

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Journal of Polymer Science. Part B, Polymer Physics Pub Date : 2001-04-01 DOI: 10.1002/1099-0488(20010401)39:7<786::AID-POLB1053>3.0.CO;2-#

P. Tiemblo, J. Guzmán, E. Riande, E. F. Salvador, C. Peinado

引用次数: 10

Water-sorption behaviors of poly(3,4'-oxydiphenylene pyromellitimide) films depending on the thickness variation 聚(3,4'-氧基二苯二胺)薄膜随厚度变化的吸水行为

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Journal of Polymer Science. Part B, Polymer Physics Pub Date : 2001-03-15 DOI: 10.1002/1099-0488(20010315)39:6<669::AID-POLB1041>3.0.CO;2-#

J. Seo, C. Han, Haksoo Han

{"title":"Water-sorption behaviors of poly(3,4'-oxydiphenylene pyromellitimide) films depending on the thickness variation","authors":"J. Seo, C. Han, Haksoo Han","doi":"10.1002/1099-0488(20010315)39:6<669::AID-POLB1041>3.0.CO;2-#","DOIUrl":"https://doi.org/10.1002/1099-0488(20010315)39:6<669::AID-POLB1041>3.0.CO;2-#","url":null,"abstract":"The effect of film thickness on the water-sorption behaviors of poly(3,4′-oxydiphenylene pyromellitimide) (PMDA-3,4′ODA) films was gravimetrically investigated and interpreted with a Fickian diffusion model in films. The diffusion coefficient increased with increasing film thickness, whereas the water uptake and the activation energy decreased. Overall, the water-sorption behaviors of PMDA-3,4′ODA films are strongly dependent on the changes in morphological structure, which originated from the variation in the film thickness. As the film thickness increased, the molecular in-plane orientation decreased, consequently leading to the increased diffusion coefficient and decreased activation energy. In contrast, the water uptake decreased with increasing film thickness because of the increase in the out-of-plane packing order. The diffusion coefficient and activation energy were strongly dependent on the in-plane orientation in the films. © 2001 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 39: 669–676, 2001","PeriodicalId":16853,"journal":{"name":"Journal of Polymer Science. Part B, Polymer Physics","volume":"161 1","pages":"669-676"},"PeriodicalIF":0.0,"publicationDate":"2001-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75977689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

On the influence of electron energy on iodine‐doped polyaniline formation by plasma polymerization 电子能量对等离子体聚合法制备碘掺杂聚苯胺的影响

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Journal of Polymer Science. Part B, Polymer Physics Pub Date : 2001-01-01 DOI: 10.1002/1099-0488(20010101)39:1<175::AID-POLB160>3.0.CO;2-#

M. Olayo, J. Morales, G. J. Cruz, R. Olayo, E. Ordoñez, S. Barocio

引用次数: 33

An investigation into the relationship between internal stress distribution and a change of poly-p-phenylenebenzobisoxazole (PBO) fiber structure 内应力分布与PBO纤维结构变化关系的研究

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Journal of Polymer Science. Part B, Polymer Physics Pub Date : 2000-11-15 DOI: 10.1002/1099-0488(20001115)38:22<2901::AID-POLB50>3.0.CO;2-#

T. Kitagawa, K. Yabuki

{"title":"An investigation into the relationship between internal stress distribution and a change of poly-p-phenylenebenzobisoxazole (PBO) fiber structure","authors":"T. Kitagawa, K. Yabuki","doi":"10.1002/1099-0488(20001115)38:22<2901::AID-POLB50>3.0.CO;2-#","DOIUrl":"https://doi.org/10.1002/1099-0488(20001115)38:22<2901::AID-POLB50>3.0.CO;2-#","url":null,"abstract":"This study concerns stress distribution induced by external force in individual poly-p-phenylenebenzobisoxazole (PBO) molecules in fiber. In reality, there are no fibers having an ideal structure (i.e., composed of infinitely long complete crystal elongated parallel to the fiber axis without defects that disconnect stress transfer in the crystal structure). Normally, real fiber structure has some structural incompletion, such as molecular ends, molecular misorientation, and density fluctuation (inhomogeneity) along the fiber axis. They play the role of heterogeneous stress distribution and reduction of fiber modulus in the fiber under tensile deformation. To carry out such analysis, meridional X-ray diffraction peaks of the PBO fiber under stress were measured and discussed. Distribution of the diffraction peak profile (half-height width of the diffraction profile) was especially considered. Change of the molecular orientation induced by external stress to the fiber was also estimated by measuring distribution of equatorial spots along the Debye ring. It was found that the distribution of the meridional diffraction spots became wider in the meridian, while the peak profile along the azimuthal direction became narrower as external stress was added for all three fibers. The degrees of response against stress came in this order: AS (180 GPa ) > HM (280 GPa) > HM+ (360 GPa). Hosemann's analysis was adopted to analyze real crystallite size and disorder parameter (g) of crystallites. It indicated that the crystalline size does not vary but the ordering of periodicity in the crystal lattice starts to loosen as applied stress to the fiber is increased. The stress seems to affect only local micro regions in the crystal structure.","PeriodicalId":16853,"journal":{"name":"Journal of Polymer Science. Part B, Polymer Physics","volume":"34 1","pages":"2901-2911"},"PeriodicalIF":0.0,"publicationDate":"2000-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84850846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 22

Biodegradable fibers of poly(3‐hydroxybutyrate) produced by high‐speed melt spinning and spin drawing 采用高速熔融纺丝和纺丝拉伸法制备聚(3 -羟基丁酸酯)可生物降解纤维

3区工程技术

Journal of Polymer Science. Part B, Polymer Physics Pub Date : 2000-11-01 DOI: 10.1002/1099-0488(20001101)38:21<2841::AID-POLB130>3.0.CO;2-#

G. Schmack, D. Jehnichen, R. Vogel, B. Tändler

{"title":"Biodegradable fibers of poly(3‐hydroxybutyrate) produced by high‐speed melt spinning and spin drawing","authors":"G. Schmack, D. Jehnichen, R. Vogel, B. Tändler","doi":"10.1002/1099-0488(20001101)38:21<2841::AID-POLB130>3.0.CO;2-#","DOIUrl":"https://doi.org/10.1002/1099-0488(20001101)38:21<2841::AID-POLB130>3.0.CO;2-#","url":null,"abstract":"The effects of high-speed melt spinning and spin drawing on the structure and resulting properties of bacterial generated poly(3-hydroxybutyrate) (PHB) fibers were investigated. The fibers were characterized by their degree of crystallinity by differential scanning calorimetry (DSC) and wide-angle X-ray scattering (WAXS), their orientation by WAXS, and the textile physical properties. The WAXS studies revealed that the fibers spun at high speeds and high draw ratios possessed orthorhombic (α modification) and hexagonal (β modification) crystals, the latter as a result of stress-induced crystallization. The fiber structures formed during these processes were fibril-like as the atomic force microscopy images demonstrated. The maximum physical break stress, the modulus, and the elongation at break observed in the fibril-like spin drawn fibers were about 330 MPa, 7.7 GPa, and 37%, respectively. The fibers obtained by a low draw ratio of 4.0 had spherulitic structures and poor textile physical properties. The PHB pellets were analyzed by their degradation during the processes of drying and spinning and by their thermal and rheological properties. © 2000 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 38: 2841–2850, 2000","PeriodicalId":16853,"journal":{"name":"Journal of Polymer Science. Part B, Polymer Physics","volume":"49 1","pages":"2841-2850"},"PeriodicalIF":0.0,"publicationDate":"2000-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73537978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 84