DOI: 10.1002/macp.1982.021830720. Cyclization dynamics of polymers, 5. The effects of solvent on end‐to‐end cyclization of poly(ethylene oxide) probed by intramolecular pyrene excimer formation

Cyclization dynamics of polymers, 5. The effects of solvent on end‐to‐end cyclization of poly(ethylene oxide) probed by intramolecular pyrene excimer formation

10.1002/macp.1982.021830720

Crossref journal-article

Wiley

Die Makromolekulare Chemie (311)

Abstract

AbstractIntramolecular excimer formation between pyrenes attached to the ends of a poly(ethyleneoxide) sample of nominal molecular weight 9600 has been examined in twelve solvents. In ten non‐protic solvents the excimer to pyrene locally excited fluorescene intensity ratio IE/IM is inversely proportional to solvent viscosity, as expected for a diffusion‐controlled process. Similar results were obtained for 〈k1〉 values obtained from flash‐photolysis studies, where 〈k1〉 is the average rate constant for end‐to‐end cyclization in the polymer. In water and methanol, the extent of excimer emission and the rate of intramolecular excimer emission and the rate of intramolecular excimer formation were substantially greater than one would infer on the basis of solvent viscosity alone.

Bibliography

Cheung, S., Winnik, M. A., & Redpath, A. E. C. (1982). Cyclization dynamics of polymers, 5. The effects of solvent on endâtoâend cyclization of poly(ethylene oxide) probed by intramolecular pyrene excimer formation. Die Makromolekulare Chemie, 183(7), 1815â1824. Portico.

Authors 3

Seung‐Tong Cheung (first)
Mitchell A. Winnik (additional)
Anthony E. C. Redpath (additional)

References 26 Referenced 43

10.1016/0079-6700(71)90002-5
{'key': 'e_1_2_1_2_2', 'series-title': 'International Review of Science: Physical Chemistry Series Two', 'first-page': '223', 'author': 'Allen G.', 'year': '1975'} / International Review of Science: Physical Chemistry Series Two by Allen G. (1975)
{'key': 'e_1_2_1_3_2', 'volume-title': 'Dynamic Light Scattering: with Applications to Chemistry, Biology and Physics', 'author': 'Berne B. J.', 'year': '1976'} / Dynamic Light Scattering: with Applications to Chemistry, Biology and Physics by Berne B. J. (1976)
10.1126/science.203.4379.405
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{'key': 'e_1_2_1_5_2', 'series-title': 'Encyclopedia of Polymer Science and Technology', 'author': 'Kargin V. A.', 'year': '1968'} / Encyclopedia of Polymer Science and Technology by Kargin V. A. (1968)
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{'key': 'e_1_2_1_14_2', 'series-title': 'Creation and Detection of the Excited State', 'author': 'Ware W. R.', 'year': '1971'} / Creation and Detection of the Excited State by Ware W. R. (1971)
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{'key': 'e_1_2_1_16_3', 'first-page': '1241', 'volume': '10', 'author': 'Assarsson P. G.', 'year': '1969', 'journal-title': 'Polym. Prepr., Am. Chem. Soc., Div. Polym. Chem.'} / Polym. Prepr., Am. Chem. Soc., Div. Polym. Chem. by Assarsson P. G. (1969)
{'key': 'e_1_2_1_16_4', 'volume-title': 'Poly(ethylene oxide)', 'author': 'Bailey F. E.', 'year': '1976'} / Poly(ethylene oxide) by Bailey F. E. (1976)

Dates

Type	When
Created	22 years, 4 months ago (April 15, 2003, 7:41 p.m.)
Deposited	1 year, 9 months ago (Nov. 13, 2023, 1:07 p.m.)
Indexed	2 months ago (July 2, 2025, 1:51 p.m.)
Issued	43 years, 1 month ago (July 14, 1982)
Published	43 years, 1 month ago (July 14, 1982)
Published Online	22 years, 5 months ago (March 12, 2003)
Published Print	43 years, 1 month ago (July 14, 1982)

Funders 0

None

BibTeX

@article{Cheung_1982, title={Cyclization dynamics of polymers, 5. The effects of solvent on end‐to‐end cyclization of poly(ethylene oxide) probed by intramolecular pyrene excimer formation}, volume={183}, ISSN={0025-116X}, url={http://dx.doi.org/10.1002/macp.1982.021830720}, DOI={10.1002/macp.1982.021830720}, number={7}, journal={Die Makromolekulare Chemie}, publisher={Wiley}, author={Cheung, Seung‐Tong and Winnik, Mitchell A. and Redpath, Anthony E. C.}, year={1982}, month=jul, pages={1815–1824} }

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