Conformational Studies of Poly(Ethyl Acrylate-co-Acrylic Acid)
In recent years, extensive complementary light-scattering and viscosity studies have been carried out by a number of workers for nonionic polymers (1–7) but very few for polyelectrolytes (8–10). Our present work concerns a systematic study of a poly(ethyl acrylate-co-acrylic acid), an interesting polyelectrolyte with both hydrophilic and hydrophobic groups. The copolymer contains ethyl acrylate and acrylic acid residues in a mole ratio of three to one, respectively (Figure 1). The weight fractions of each comonomer in the polymer were found to be constant over the entire molecular-weight range studied. The different monomer groups are also randomly distributed along each chain.
KeywordsIonic Strength Acrylic Acid Intrinsic Viscosity Conformational Transition Relative Fluorescence Intensity
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