Solution-Crystallization and Related Phenomena in 9,9-Dialkyl-Fluorene Polymers. I. Crystalline Polymer-Solvent Compound Formation for Poly(9,9-dioctylfluorene)

被引:26
作者
Perevedentsev, Aleksandr [1 ,2 ]
Stavrinou, Paul N. [1 ,2 ]
Bradley, Donal D. C. [1 ,2 ]
Smith, Paul [3 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2AZ, England
[2] Univ London Imperial Coll Sci Technol & Med, Ctr Plast Elect, London SW7 2AZ, England
[3] Swiss Fed Inst Technol, Dept Mat, CH-8093 Zurich, Switzerland
基金
英国工程与自然科学研究理事会;
关键词
conjugated polymers; crystallization; microstructure; DIFFERENTIAL SCANNING CALORIMETRY; POLYSTYRENE PHYSICAL GELS; SYNDIOTACTIC POLYSTYRENE; PHASE-BEHAVIOR; POLY(METHYL METHACRYLATE); BIMOLECULAR CRYSTALS; THIN-FILMS; POLYFLUORENE; EMISSION; PHOTOPHYSICS;
D O I
10.1002/polb.23798
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Polymer-solvent compound formation, occurring via co-crystallization of polymer chains and selected small-molecular species, is demonstrated for the conjugated polymer poly(9,9-dioctylfluorene) (PFO) and a range of organic solvents. The resulting crystallization and gelation processes in PFO solutions are studied by differential scanning calorimetry, with X-ray diffraction providing additional information on the resulting microstructure. It is shown that PFO-solvent compounds comprise an ultra-regular molecular-level arrangement of the semi-conducting polymer host and small-molecular solvent guest. Crystals form following adoption of the planar-zigzag beta-phase chain conformation, which, due to its geometry, creates periodic cavities that accommodate the ordered inclusion of solvent molecules of matching volume. The findings are formalized in terms of nonequilibrium temperature-composition phase diagrams. The potential applications of these compounds and the new functionalities that they might enable are also discussed. (C) 2015 The Authors. Journal of Polymer Science Part B: Polymer Physics published by Wiley Periodicals, Inc.
引用
收藏
页码:1481 / 1491
页数:11
相关论文
共 69 条
[1]   Syndiotactic Polystyrene Films with a Cocrystalline Phase Including Carvacrol Guest Molecules [J].
Albunia, Alexandra R. ;
Rizzo, Paola ;
Ianniello, Graziella ;
Rufolo, Claudia ;
Guerra, Gaetano .
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 2014, 52 (09) :657-665
[2]   Oxygen Optical Gas Sensing by Reversible Fluorescence Quenching in Photo-Oxidized Poly(9,9-dioctylfluorene) Thin Films [J].
Anni, M. ;
Rella, R. .
JOURNAL OF PHYSICAL CHEMISTRY B, 2010, 114 (04) :1559-1561
[3]   PHASE-BEHAVIOR AND STRUCTURE FORMATION IN SOLUTIONS OF VINYL-POLYMERS [J].
BERGHMANS, H ;
DEBERDT, F .
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1994, 348 (1686) :117-130
[4]   Influence of aggregation on the optical properties of a polyfluorene [J].
Bradley, DDC ;
Grell, M ;
Long, X ;
Mellor, H ;
Grice, A ;
Inbasekaran, M ;
Woo, EP .
OPTICAL PROBES OF CONJUGATED POLYMERS, 1997, 3145 :254-259
[5]  
Brandrup J., 1993, Polymer Handbook
[6]   Gold Nanoparticles Incarcerated in Nanoporous Syndiotactic Polystyrene Matrices as New and Efficient Catalysts for Alcohol Oxidations [J].
Buonerba, Antonio ;
Cuomo, Cinzia ;
Sanchez, Sheila Ortega ;
Canton, Patrizia ;
Grassi, Alfonso .
CHEMISTRY-A EUROPEAN JOURNAL, 2012, 18 (02) :709-715
[7]   Film morphology and photophysics of polyfluorene [J].
Cadby, AJ ;
Lane, PA ;
Mellor, H ;
Martin, SJ ;
Grell, M ;
Giebeler, C ;
Bradley, DDC ;
Wohlgenannt, M ;
An, C ;
Vardeny, ZV .
PHYSICAL REVIEW B, 2000, 62 (23) :15604-15609
[8]   Transient and steady-state space-charge-limited currents in polyfluorene copolymer diode structures with ohmic hole injecting contacts [J].
Campbell, AJ ;
Bradley, DDC ;
Antoniadis, H ;
Inbasekaran, M ;
Wu, WSW ;
Woo, EP .
APPLIED PHYSICS LETTERS, 2000, 76 (13) :1734-1736
[9]   Phase-Separation-Induced Gelation of Poly(9,9-dioctylfluorene) Methylcyclohexane Solution [J].
Chen, Chun-Yu ;
Chang, Chih-Shun ;
Huang, Siao-Wun ;
Chen, Jean-Hong ;
Chen, Hsin-Lung ;
Su, Ching-luan ;
Chen, Show-An .
MACROMOLECULES, 2010, 43 (09) :4346-4354
[10]   Gelation and Its Effect on the Photophysical Behavior of Poly(9,9-dioctylfluorene-2,7-diyl) in Toluene [J].
Chen, Jean-Hong ;
Chang, Chih-Shun ;
Chang, Ying-Xun ;
Chen, Chun-Yu ;
Chen, Hsin-Lung ;
Chen, Show-An .
MACROMOLECULES, 2009, 42 (04) :1306-1314