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Application of fluorescence quenching techniques to the study of emulsion polymerization and latex characterization
Author(s) -
Winnik Mitchell A.,
Xu Huilin,
Satguru R.
Publication year - 1993
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19930700114
Subject(s) - emulsion polymerization , characterization (materials science) , quenching (fluorescence) , emulsion , polymerization , fluorescence , materials science , polymer science , chemical engineering , polymer chemistry , polymer , nanotechnology , composite material , physics , engineering , optics
Abstract We investigate two aspects of emulsion polymerization through fluorescence studies of models of those processes. The first is the uptake of monomer by seed latex using poly(butyl methacrylate) (PBMA) seeds labeled with phenanthrene (Phe) groups. Nitroalkanes serve as models for the monomer. Data analysis gives the partition coefficients and the diffusion coefficients (D) of monomer inside the latex (D = 6 × 10 −8 cm 2 s −1 ). The second aspect involves the generation of core‐shell structures in poly(methyl methacrylate) (PMMA) latex where the Phe‐labeled seed is treated, during the second stage polymerization, with additional MMA plus a polymerizable anthracene (An) derivative. The extent of Phe to An energy transfer in the final latex measures the amount of mixing of added monomer during the second stage polymerization.