Long-Range, Polymer Chain Dynamics of a “Stiff” Polymer. Fluorescence from Poly(isobutylene-alt-maleic anhydride) with N-(1-Pyrenylmethyl)succinimide Groups
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DOI: 10.1021/acs.macromol.7b00527
Abstract: The steady-state fluorescence (SSF) spectra and time-resolved fluorescence (TRF) decays of five poly(isobutylene-alt-maleic anhydride) copolymers (PIMA), randomly labeled with N-(1-pyrenylmethyl)succinimide groups (Py-PIMA), have been analyzed in order to describe their long-range, polymer chain dynamics (LRPCD)… read more here.
Keywords: pyrenyl; isobutylene alt; fluorescence; polymer ... See more keywords
Synthesis and Characterization of Cyclotri- and Tetrasiloxanes with Pyrenyl Groups
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DOI: 10.1021/acsomega.2c06076
Abstract: Cyclosiloxanes directly bearing polyaromatic groups on silicon atoms have scarcely been reported. Herein, hexa(1-pyrenyl)cyclotrisiloxane (2) and octa(1-pyrenyl)cyclotetrasiloxane (3) were successfully prepared from di(1-pyrenyl)silanediol (1) in the presence of a weak base such as tetraethylammonium acetate… read more here.
Keywords: characterization cyclotri; tetrasiloxanes pyrenyl; cyclotri tetrasiloxanes; synthesis characterization ... See more keywords