scholarly journals Hollow polymer particles that are pH-responsive and redox sensitive: two simple steps to triggered particle swelling, gelation and disassembly

2011 ◽  
Vol 47 (5) ◽  
pp. 1443-1445 ◽  
Author(s):  
Robert Bird ◽  
Tony J. Freemont ◽  
Brian R. Saunders
Keyword(s):  
Ph Responsive ◽  
Polymer Particles

scholarly journals CO2/pH-responsive particles with built-in fluorescence read-out

2016 ◽  
Vol 7 (38) ◽  
pp. 5943-5948 ◽  
Author(s):  
Anne B. Mabire ◽  
Quentin Brouard ◽  
Anaïs Pitto-Barry ◽  
Rebecca J. Williams ◽  
Helen Willcock ◽  
...  
Keyword(s):  
The State ◽  
Ph Responsive ◽  
Polymer Particles

A novel fluorescent monomer was synthesized to probe the state of CO2-responsive cross-linked polymer particles.

Carboxylic acid modified pH-responsive composite polymer particles

2019 ◽  
Vol 39 (7) ◽  
pp. 671-678
Author(s):  
Nur E. Jannat ◽  
Md. Ashraful Alam ◽  
M.A. Rahman ◽  
M.M. Rahman ◽  
M.K. Hossain ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Methacrylic Acid ◽  
Ph Value ◽  
Ethylene Glycol Dimethacrylate ◽  
Glycol Dimethacrylate ◽  
Ph Responsive ◽  
Composite Polymer ◽  
Polymer Particles ◽  
Ph Values ◽  
Composite Polymer Particles

Abstract pH-responsive polymers are attracting much interest from researchers because of their wide application potentials in areas like biosensor, bioseparator, bioreactor, biocatalysis, drug delivery, and water treatments. In this investigation a two-step process is evaluated to prepare carboxyl(–COOH) functional submicrometer-sized pH-responsive composite polymer particles. First, submicrometer-sized polystyrene (PS) particles are prepared by a modified conventional dispersion polymerization. In the second step, PS/poly(methacrylic acid-acrylamide-ethylene glycol dimethacrylate) [PS/P(MAA-AAm-EGDMA)] composite polymer particles are synthesized by seeded co-polymerization of methacrylic acid, acrylamide, and ethylene glycol dimethacrylate in the presence of PS seed particles. The size distributions and morphologies analyzed by electron micrographs suggested that seeded copolymerization smoothly occurred without formation of any secondary tiny copolymer particles. The surface composition and functionality are confirmed by Fourier transform infrared spectroscopy and proton nuclear magnetic resonance. The hydrodynamic diameter increased with the increase in pH values as part of the carboxyl groups are deprotonated, which favored the swelling of copolymer layer formed around the surface of PS particles. The adsorption of cationic and anionic surfactants at two different pH values showed that adsorption of cationic surfactant is favored at higher pH value whereas that of anionic surfactant is favored at lower pH value.

scholarly journals pH-Responsive Aqueous Bubbles Stabilized With Polymer Particles Carrying Poly(4-vinylpyridine) Colloidal Stabilizer

2018 ◽  
Vol 6 ◽  
Author(s):  
Masaya Ito ◽  
Koki Takano ◽  
Haruka Hanochi ◽  
Yuta Asaumi ◽  
Shin-ichi Yusa ◽  
...  
Keyword(s):  
Ph Responsive ◽  
Polymer Particles

The fabrication of amphiphilic double dynamers for responsive Pickering emulsifiers

2018 ◽  
Vol 9 (5) ◽  
pp. 627-636 ◽  
Author(s):  
Ting Zeng ◽  
Duanguang Yang ◽  
Huaming Li ◽  
Chong Cheng ◽  
Yong Gao
Keyword(s):  
Self Assembly ◽  
Pickering Emulsion ◽  
The Self ◽  
Ph Responsive ◽  
Polymer Particles

Xylene-in-water Pickering emulsion stabilized by polymer particles that were fabricated by the self-assembly of amphiphilic double dynamers showed temperature- and pH-responsive demulsification feature.

pH-responsive pitted polymer particles with surface morphologies from cup shaped to multicavities

2021 ◽  
Author(s):  
Rukiye Bengü Karabacak ◽  
Mark Louis P. Vidallon ◽  
Shane P. Meaney ◽  
Shahinur Acter ◽  
Zhen Zhen Lu ◽  
...  
Keyword(s):  
Ph Responsive ◽  
Polymer Particles ◽  
Surface Morphologies

scholarly journals Effect of the Addition of a Cross-Linker and the Water pH on the Physical Properties of Films of pH-Responsive Polymer Particles at Air/Water Interfaces

ACS Omega ◽  
2017 ◽  
Vol 2 (11) ◽  
pp. 7837-7848 ◽  
Author(s):  
Yuka Azakami ◽  
Michael Kappl ◽  
Syuji Fujii ◽  
Shin-ichi Yusa ◽  
Cathy E. McNamee
Keyword(s):  
Physical Properties ◽  
Ph Responsive ◽  
Polymer Particles ◽  
Responsive Polymer ◽  
Water Ph ◽  
Cross Linker

Ammonium-Functionalized Hollow Polymer Particles As a pH-Responsive Adsorbent for Selective Removal of Acid Dye

2016 ◽  
Vol 8 (26) ◽  
pp. 16690-16698 ◽  
Author(s):  
Yan Qin ◽  
Li Wang ◽  
Changwen Zhao ◽  
Dong Chen ◽  
Yuhong Ma ◽  
...  
Keyword(s):  
Selective Removal ◽  
Acid Dye ◽  
Ph Responsive ◽  
Polymer Particles
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