A critical evaluation of direct energy transfer as a tool for analysis of nanoscale morphologies in polymers. Application to block copolymer interfaces
Article Abstract:
The dynamics of energy transfer (ET) for a lamellar block copolymer system in which donor dyes have been attached to the block junction has been studied. The research seeks to find out if ET can determine the shape of a polymer-polymer interface and discover the limits in the quantitative recovery of system parameters. Results indicate ET experiments can give reliable estimates of the ratio of the period spacing to interface thickness but not the individual parameters H and delta. H can be determined with scattering techniques while delta can be estimated with an accuracy better than 5%.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Energy transfer in the restricted geometry of lamellar block copolymer interfaces
Article Abstract:
The study was done by carrying out simulations of energy transfer kinetics for lamellar block copolymer systems in which donor and acceptor dyes were attached to the block junctions. The study suggests linear relationships between the apparent dimensions from Klafter-Blumen (KB) analyses and acceptor concentrations.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2001
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Time-resolved fluorescence investigation of energy transfer in compact phenylacetylene dendrimers
Article Abstract:
Time-resolved femtosecond fluorescence, florescence anisotropy dynamics and temperature dependent steady state spectral studies of a second-generation homogeneous phenylacetylene dendrimer are reported. Time-resolved fluorescence results suggest delocalization of the excitation energy in the excited states.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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