Molecular aggregation of poly[(1,3-phenyleneethynylene)-alt-oligo(2,5-dialkoxy-1,4-phenyleneethynylene)]: Effects of solvent, temperature, and polymer conformation

Macromolecules

Volumn 36, Issue 12, 2003, Pages 4614-4618

  Chu, Qinghui ^a   Pang, Yi ^a  

^a CLARK ATLANTA UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

MOLECULAR AGGREGATION; MOLECULAR CONFORMATIONAL CHANGE; RANDOM-COIL CONFORMATION;

ABSORPTION SPECTROSCOPY; CONFORMATIONS; METHANOL; MOLECULAR DYNAMICS; MOLECULAR STRUCTURE; ORGANIC SOLVENTS; SOLUTIONS; THERMAL EFFECTS; ULTRAVIOLET SPECTROSCOPY;

ORGANIC POLYMERS;

EID: 0038272082     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma034449z     Document Type: Article

References (19)

1. Jakubiak, R.; Collison, C. J.; Wan, W. C.; Rothberg, L. J.; Hsieh, B. R. J. Phys. Chem. A 1999, 103, 3294-3298.
2. Schouwink, P.; Schäfer, A. H.; Fuchs, H. Thin Solid Films 2000, 372, 163-168.
3. Bunz, U. H. F. Chem. Rev. 2000, 100, 1605-1644.
4. Rughooputh, S. D. D. V.; Hotta, S.; Heeger, A. J.; Wudl, F. J. Polym. Sci., Part B: Polym. Phys. 1987, 25, 1071-1078.
5. Halkyard, C. E.; Rampey, M. E.; Kloppenburg, L.; Studer-Martinez, S. L.; Bunz, U. H. F. Macromolecules 1998, 31, 8655-8659.
6. Collison, C. J.; Rothberg, L. J.; Treemaneekarn, V.; Li, Y. Macromolecules 2001, 34, 2346-2352.
7. Fiesel, R.; Halkyard, C. E.; Rampey, M. E.; Kloppenburg, L.; Studer-Martinez, S. L.; Scherf, U.; Bunz, U. H. F. Macromol. Rapid Commun. 1999, 20, 107-111.
8. Langeveld-Voss, B. M. W.; Janssen, R. A. J.; Meijer, E. W. J. Mol. Struct. 2000, 521, 285-301.
9. Brunsveld, L.; Meijer, E. W.; Prince, R. B.; Moore, J. S. J. Am. Chem. Soc. 2001, 123, 7978-7984.
10. Rughooputh, S. D. D. V. Synth. Met. 1996, 80, 195-200.
11. Miteva, T.; Palmer, L.; Kloppenburg, L.; Neher, D.; Bunz, U. H. F. Macromolecules 2000, 33, 652-654.
12. Sluch, M. I.; Godt, A.; Bunz, U. H. F.; Berg, M. A. J. Am. Chem. Soc. 2001, 123, 6447-6448.
13. Pang, Y.; Li, J.; Hu, B.; Karasz, F. E. Macromolecules 1998, 31, 6730-6732.
14. Chu, Q.; Pang, Y.; Ding, L.; Karasz, F. E. Macromolecules 2002, 35, 7569-7574.
15. The rigid-rod lengths of 3 and 4 are estimated to be 1.65 and 3.01 nm, respectively, by using HyperChem 6.0 software with AM1 Semi-Empirical setting.
16. Lakowicz, J. R. Principles of Fluorescence Spectroscopy, 2nd ed.; Kluwer Academic: New York, 1999; Chapter 6.
17. Levitus, M.; Schmieder, K.; Ricks, H.; Shimizu, K. D.; Bunz, U. H.; Garcia-Garbai, M. A. J. Am. Chem. Soc. 2001, 123, 4259-4265.
18. Moroni, M.; Moigne, J. L. Macromolecules 1994, 27, 562-571.
19. At room temperature, aggregation from poly(p-phenylene-ethynylene) derivatives in solution can be induced by low volume ratio of nonsolvent, e.g., chlorofom/methanol = 80; 20. See refs 4 and 6.