Abstract
The selective intermacromolecular complex formation between p-bromophenol-formaldehyde copolymer (PPF) and poly(vinyl pyrrolidone) (PVP) and poly(ethylene oxide) (PEO) has been investigated. PVP has been found to have greater ability for complex formation compared to PEO with respect to PPF. An open-chain mechanism has been proposed for the substitution reaction between PVP and PPF-PEO complex. The abnormal behaviour of viscosity curves has been interpreted on the basis of probable association between the nonionic polymers.
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