Free-radical polymerization of urea, acrylic acid, and glycerol in aqueous solutions

2015 ◽  
Vol 55 (6) ◽  
pp. 1219-1229 ◽  
Author(s):  
Bruno S. Fernandes ◽  
José Carlos Pinto ◽  
Elaine C.M. Cabral-Albuquerque ◽  
Rosana L. Fialho
Keyword(s):  
Free Radical ◽  
Acrylic Acid ◽  
Aqueous Solutions ◽  
Radical Polymerization ◽  
Free Radical Polymerization

Preparation of a phosphorous-free terpolymer as a decalcifying agent for removing calcium from crude oil

RSC Advances ◽  
2016 ◽  
Vol 6 (63) ◽  
pp. 58426-58433 ◽  
Author(s):  
Shuaishuai Ma ◽  
Zhilan Cai ◽  
Yuming Zhou ◽  
Shiwei Li ◽  
Shuang Liang
Keyword(s):  
Free Radical ◽  
Acrylic Acid ◽  
Crude Oil ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Polymerization Reaction

A novel phosphorous-free terpolymer, used as a decalcifying agent for removing calcium from crude oil, was prepared through a free-radical polymerization reaction of acrylic acid, allylpolyethoxy amino carboxylate, and 2-hydroxyethyl acrylate.

Investigation on pH-switchable (itaconic acid/ethylene glycol/acrylic acid) based polymeric biocompatible hydrogel

RSC Advances ◽  
2016 ◽  
Vol 6 (108) ◽  
pp. 106821-106831 ◽  
Author(s):  
M. Sakthivel ◽  
D. S. Franklin ◽  
S. Sudarsan ◽  
G. Chitra ◽  
S. Guhanathan
Keyword(s):  
Free Radical ◽  
Acrylic Acid ◽  
Ethylene Glycol ◽  
Radical Polymerization ◽  
Itaconic Acid ◽  
Free Radical Polymerization ◽  
Ph Sensitive ◽  
Water Medium ◽  
New Variety ◽  
Polymeric Hydrogels

A new variety of pH-sensitive polymeric hydrogels (IAE) have been developed and evaluated as biocompatible hydrogels using synergetic combinations of itaconic acid (IA), acrylic acid (AA), and ethylene glycol (EG) in water medium by free radical polymerization.

scholarly journals Free-Radical Polymerization of Acrylic Acid under Extreme Reaction Conditions Mimicking Deep-Sea Hydrothermal Vents

ACS Omega ◽  
2017 ◽  
Vol 2 (6) ◽  
pp. 2765-2769 ◽  
Author(s):  
Keigo Kinoshita ◽  
Yoshinori Takano ◽  
Naohiko Ohkouchi ◽  
Shigeru Deguchi
Keyword(s):  
Free Radical ◽  
Acrylic Acid ◽  
Radical Polymerization ◽  
Deep Sea ◽  
Hydrothermal Vents ◽  
Free Radical Polymerization ◽  
Reaction Conditions

Enhanced elasticity in poly(acrylic acid) gels via synthesis in the presence of high concentrations of select salts

Soft Matter ◽  
2019 ◽  
Vol 15 (38) ◽  
pp. 7596-7604 ◽  
Author(s):  
Anne Walker ◽  
Maria Vratsanos ◽  
Susan Kozawa ◽  
Tiara Askew ◽  
Karina Hemmendinger ◽  
...  
Keyword(s):  
Free Radical ◽  
Acrylic Acid ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Enhanced Properties ◽  
High Concentrations ◽  
Poly Acrylic Acid

Poly(acrylic acid) gels synthesized via free-radical polymerization of acrylic acid and high molarities of salt show properties quite different from such gels synthesized without salt. Enhanced properties include increased extensibility and modulus.

Preparation and Thermosensitivity of N-Isopropylacrylamide Microgels Containing L-Phenylalanine

2014 ◽  
Vol 609-610 ◽  
pp. 666-669
Author(s):  
Jiao Jiao Chen ◽  
Xin Lei Fu ◽  
Dong Xin Shi
Keyword(s):  
Transition Temperature ◽  
Free Radical ◽  
Acrylic Acid ◽  
Radical Polymerization ◽  
Ethyl Ester ◽  
Free Radical Polymerization ◽  
Spherical Shape ◽  
Average Diameter ◽  
Temperature Sensitive

Novel chiral temperature-sensitive microgels based on N-isopropylacrylamide are reported in this paper. Such particles, poly (N-isopropylacrylamide-co-acrylic acid-L-phenylalanine ethyl ester)[ poly (NIPAM-co-ALPhe)], were prepared by free radical polymerization of NIPAM, chiral monomer ALPhe and crosslinker N,N,-methylene-bis (acrylamide). The microgels exhibit spherical shape and favorable monodispersity. Increasing the content of ALPhe units incorporated into the microgel network will increase the average diameter, but decrease the swelling ratios and the transition temperature of particles.

Organoplatinum(IV) derivatized vinyl monomers and polymers prepared by oxidative addition

1996 ◽  
Vol 74 (11) ◽  
pp. 1983-1989 ◽  
Author(s):  
Sudhir Achar ◽  
Richard J. Puddephatt ◽  
John D. Scott
Keyword(s):  
Free Radical ◽  
Acrylic Acid ◽  
Key Words ◽  
Radical Polymerization ◽  
General Formula ◽  
Oxidative Addition ◽  
Free Radical Polymerization ◽  
Vinyl Monomers ◽  
Acryloyl Chloride ◽  
High Degree

Organoplatinum(IV) complexes of general formula [PtXMe2R(NN)], containing vinyl substituents, have been prepared by oxidative addition of RX, (RX = methyl 2-(bromomethyl)acrylate, 2-(bromomethyl)acrylic acid, 2-bromoethyl methacrylate, acryloyl chloride, and chloromethylstyrene), to [PtMe2(NN)], NN = 2,2′-bipyridine or 4,4′-di-tert-butyl-2,2′-bipyridine. Polymers with organoplatinum(IV) substituents have been prepared either by free radical polymerization of the organoplatinum(IV) derivatized monomers or by free radical polymerization of the organic monomers, followed by the oxidative addition of the C-X substituents of these polymers to [PtMe2(NN)]. In the latter method, it is generally not possible to metallate all the C—X bonds, but a high degree of platinum incorporation can be achieved. Key words: organoplatinum, polymer, oxidative addition, vinyl.

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