Water Soluble Polymers. 75. Responsive Microdomains in LabeledN-Octylamide-Substituted Poly(sodium maleate-alt-ethyl vinyl ether):  Transient Fluorescence and Time-Resolved Fluorescence Anisotropy Studies

1997 ◽  
Vol 30 (12) ◽  
pp. 3538-3546 ◽  
Author(s):  
Yuxin Hu ◽  
R. Scott Armentrout ◽  
Charles L. McCormick
Keyword(s):  
Vinyl Ether ◽  
Fluorescence Anisotropy ◽  
Water Soluble ◽  
Ethyl Vinyl Ether ◽  
Time Resolved Fluorescence ◽  
Ethyl Vinyl ◽  
Time Resolved ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Sodium Maleate

Luminescence studies of hydrophobically modified, water-soluble polymers. I. Fluorescence anisotropy and spectroscopic investigations of the conformational behaviour of copolymers of acrylic acid and styrene or methyl methacrylate

1995 ◽  
Vol 73 (11) ◽  
pp. 1982-1994 ◽  
Author(s):  
J.R. Ebdon ◽  
B.J. Hunt ◽  
D.M. Lucas ◽  
I. Soutar ◽  
L. Swanson ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Methyl Methacrylate ◽  
Fluorescence Anisotropy ◽  
Aqueous Media ◽  
Water Soluble ◽  
Copolymer Composition ◽  
Segmental Motion ◽  
Hydrophobic Modification ◽  
Water Soluble Polymers ◽  
Soluble Polymers

Fluorescence spectroscopy and anisotropy measurements have been used to study a series of styrene – acrylic acid, STY–AA, and methyl methacrylate – acrylic acid, MMA–AA, copolymers in dilute methanolic and aqueous solutions. Copolymerization of either STY or MMA with AA has little effect upon the rate of intramolecular segmental motion in methanol solutions. In aqueous media, intramolecular hydrophobic aggregation occurs and restricts the macromolecular dynamics to an extent dependent upon pH, nature of the comonomer, and copolymer composition. The hydrophobic domains formed in these copolymer systems can solubilize organic guests. In this respect, STY is a more powerful modifier of AA-based polymer behaviours than is MMA. In general, the hydrophobic modification increases the solubilization power of the resultant polymer. Furthermore, the copolymers retain their solubilization capacities to higher values of pH the more hydrophobic the comonomer and the greater its content in the copolymer. The interiors of the hydrophobic aggregates reduce the mobilities of occluded guests: the microviscosities of the domain interiors depend upon the nature of the hydrophobe, pH, and copolymer composition. Keywords: fluorescence, anisotropy, water-soluble polymers, acrylic acid, hydrophobic modification.

Time-Resolved and Steady-State Fluorescence Studies of Hydrophobically Modified Water-Soluble Polymers

2003 ◽  
Vol 107 (46) ◽  
pp. 12605-12621 ◽  
Author(s):  
J. Seixas de Melo ◽  
Telma Costa ◽  
Maria da G. Miguel ◽  
Björn Lindman ◽  
Karin Schillén
Keyword(s):  
Steady State ◽  
Water Soluble ◽  
Time Resolved ◽  
Water Soluble Polymers ◽  
Fluorescence Studies ◽  
Soluble Polymers ◽  
Steady State Fluorescence ◽  
Hydrophobically Modified

New quenching media based on water-soluble polymers

1981 ◽  
Vol 23 (2) ◽  
pp. 104-106 ◽  
Author(s):  
A. V. Tolstousov ◽  
O. A. Bannykh
Keyword(s):  
Water Soluble ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Quenching Media

scholarly journals SANS quantification of bound water in water-soluble polymers across multiple concentration regimes

Soft Matter ◽  
2021 ◽  
Author(s):  
Helen Yao ◽  
Bradley D. Olsen
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Bound Water ◽  
Water Soluble ◽  
Wide Concentration Range ◽  
Water Molecules ◽  
Water Soluble Polymers ◽  
Soluble Polymers

Small-angle neutron scattering is used to measure the number of bound water molecules associating with three polymers over a wide concentration range. Different fitting workflows are evaluated and recommended depending on the concentration regime.

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