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Journal of Coatings Technology and Research

Erschienen in:

01.03.2014

Molecular weight (M _n) and functionality effects on CUP formation and stability

verfasst von: Michael R. Van De Mark, Ameya M. Natu, Sagar V. Gade, Minghang Chen, Catherine Hancock, Cynthia Riddles

Erschienen in: Journal of Coatings Technology and Research | Ausgabe 2/2014

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Abstract

The formation of colloidal unimolecular polymer (CUP) particles from single polymer strands was investigated as a function of molecular weight. The CUP particle size was correlated with the absolute molecular weight and its distribution. The characteristics of the particles were evaluated with respect to viscosity, acid number, size distribution, and stability. The particle size varied from less than 3 nm to above 8 nm representing polymers with molecular weight in the range of 3000–153,000. Lower molecular weight polymers were found to be unstable. Particle size measurements using dynamic light scattering technique indicated a normal distribution which corresponded to the molecular weight distribution of the copolymer. The statistical distribution of the acid groups in the polymer chains played a significant role in the stability of low molecular weight polymers.

Vorheriger Artikel Waterborne coatings: continuing innovations

Nächster Artikel Thermotropic, side-chain ordered polymeric coatings: gas permeability switching via a thermal stimulus

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Titel: Molecular weight (M n) and functionality effects on CUP formation and stability
verfasst von: Michael R. Van De Mark
Ameya M. Natu
Sagar V. Gade
Minghang Chen
Catherine Hancock
Cynthia Riddles
Publikationsdatum: 01.03.2014
Verlag: Springer US
Erschienen in: Journal of Coatings Technology and Research / Ausgabe 2/2014
Print ISSN: 1547-0091
Elektronische ISSN: 1935-3804
DOI: https://doi.org/10.1007/s11998-013-9526-y

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