Stability of Poly(N,N&#61602;-methylenebisacrylamide-co-4-vinylpyridine) Microgel Dispersion and Adjustment of the Hydrophobicity in the Microgels

Qing-de Chen; Xing-hai Shen; Hong-cheng Gao

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Stability of Poly(N,N-methylenebisacrylamide-co-4-vinylpyridine) Microgel Dispersion and Adjustment of the Hydrophobicity in the Microgels

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- Stability of Poly(N,N-methylenebisacrylamide-co-4-vinylpyridine) Microgel Dispersion and Adjustment of the Hydrophobicity in the Microgels
- Vol. 23, Issue 6, Pages: 635-642(2005)
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- Published：20 November 2005
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Qing-de Chen, Xing-hai Shen, Hong-cheng Gao. Stability of Poly(N,N-methylenebisacrylamide-co-4-vinylpyridine) Microgel Dispersion and Adjustment of the Hydrophobicity in the Microgels[J]. 2005, 23(6): 635-642.
DOI：

Qing-de Chen, Xing-hai Shen, Hong-cheng Gao. Stability of Poly(N,N-methylenebisacrylamide-co-4-vinylpyridine) Microgel Dispersion and Adjustment of the Hydrophobicity in the Microgels[J]. 2005, 23(6): 635-642. DOI：

摘要

In the UV-Vis spectra of pure light-scattering systems

there is an exponential relationship between absorbance and wavelength ( ). Here

the exponent n is named as flocculation-coagulation parameter. In the present paper

the effects of different additives on the stability of poly(N

N-methylenebisacrylamide-co-4-vinylpyridine) (poly(Bis-co-4-VP)) microgel dispersion were studied in detail via this parameter. The results showed that the stability of the dispersion mainly comes from the ionization of pyridine groups

making the microgel positively charged on its surface. This was confirmed by the measurement of Zeta potential and the result of conductometric titration. The result of fluorescence analysis indicated that the hydrophobicity in the microgels is enhanced with the increase in total 4-VP unit content.

Abstract

In the UV-Vis spectra of pure light-scattering systems

there is an exponential relationship between absorbance and wavelength ( ). Here

the exponent n is named as flocculation-coagulation parameter. In the present paper

the effects of different additives on the stability of poly(N

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Stability of Poly(N,N-methylenebisacrylamide-co-4-vinylpyridine) Microgel Dispersion and Adjustment of the Hydrophobicity in the Microgels

DOI：

摘要

Abstract

关键词

Keywords

references