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A Study of Complex Formation Between Polyacrylic Acid and Poly(Ethylene Oxide) by Near Resonance Rayleigh Scattering

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Abstract:

A series of near resonance Rayleigh scattering (NRRS) experiments has been performed on the phase behavior of complex formation between polyacrylic acid (PAA) and poly(ethylene oxide) (POE). On the basis of the theory of resonance scattering, as one new method compared to resonance Rayleigh scattering (RRS), NRRS was demonstrated to investigate polymer solutions. The results indicated that the complex formation induces an increase of the intensity of resonance scattering and the phase segregation leads to distortion of the resonance scattering spectrum with decreasing pH value. The collapse of macromolecular chains is attributed to the contraction of PAA chains and association between PAA and POE. Moreover, NRRS can show more information than RRS on the basis of their scattering spectra.

Keywords: COMPLEXATION; NEAR RESONANCE RAYLEIGH SCATTERING; NRRS; PHASE SEGREGATION; POLY(ETHYLENE OXIDE); POLYACRYLIC ACID; RESONANCE RAYLEIGH SCATTERING; RRS

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370210791414371

Affiliations: 1: School of Materials Science & Engineering, Shanghai University, Shanghai 200072, China 2: School of Materials Science & Engineering, Shanghai University, Shanghai 200072, China; School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China 3: School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China

Publication date: June 1, 2010

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