Acrylamides acrylates

Acrylamide—acrylic polymers are made by free-radical polymerization of monomers containing the acryHc stmcture, where R is —H or —CH and is —NH2 or a substituted amide or the alkoxy group of an ester. [Pg.32]

Polymeric resins such as poly(acrylamide-acrylic acid) [24,25] [cationic resin, pAM-AA], poly(acrylic acid-diallylethylamine-HCl) [20] [amphoteric resin, pAA-DAEA-HCl], and poly(acrylamide-acrylic acid-di-allylamine-HCl [26] [amphoteric resin. pAM-AA-DAA-HCl] and poly(acrylamide-acrylic acid-diallylethylam-ine-HCl) [26] [amphoteric resin, pAM-AA-DAEA-HCl] were also used in water treatment. [Pg.119]

Figure 11 Influence of after-effect on acrylamide-acrylate copolymerization.

Iwai and coworkers [56] have introduced a novel type of multicomponent photoinitiating system for water-soluble monomer (acrylamide, acrylic acid, acrylonitrile, etc). [Pg.252]

This reaction is utilized by Burrows et al. [70] to photoinitiate grafting of acrylamide, acrylic acid, methacrylamide, and acrylonitrile on cellulose triacetate in acidic aqueous solution. [Pg.257]

The base materials include acrylic acid (ethylenecarboxylic acid, propenoic acid, vinylformic acid, CH2 CHCOOH) and its sodium salt, methacrylic acid [2-methylpropenoic acid, CH2 C(CH3)COOH], acrylamide (acrylic amide, propenamide, CH2 CH-CONH2), and methacrylamide. [Pg.446]

A water-soluble copolymer of hydrophilic and hydrophobic monomers, acrylamide-acrylate of silane or siloxane... [Pg.12]

Carboxymethylcellulose, polyethylene glycol Combination of a cellulose ether with clay Amide-modified carboxyl-containing polysaccharide Sodium aluminate and magnesium oxide Thermally stable hydroxyethylcellulose 30% ammonium or sodium thiosulfate and 20% hydroxyethylcellulose (HEC) Acrylic acid copolymer and oxyalkylene with hydrophobic group Copolymers acrylamide-acrylate and vinyl sulfonate-vinylamide Cationic polygalactomannans and anionic xanthan gum Copolymer from vinyl urethanes and acrylic acid or alkyl acrylates 2-Nitroalkyl ether-modified starch Polymer of glucuronic acid... [Pg.12]

D. N. Schulz, J. J. Maurer, J. Bock, and R. M. Kowalik. Process for the formation of novel acrylamide acrylate copolymers. Patent CA... [Pg.457]

The relative proportions of triads is determined by the synthetic conditions chosen as described above for acrylic acid copolymers of acrylamide derived by either direct copolymerization or by hydrolysis. Also, the polymerization pH has a considerable effect on the reactivity in acrylamide/acrylic acid copolymerization. [Pg.114]

In the case of acrylamide-acrylic acide copolymers, such a prediction requires a good knowledge and understanding on the three following aspects ... [Pg.116]

In recent works, we have studied the kinetics of both hydrolysis and degradation of a acrylamide-acrylic acid copolymer containing 17% of acrylate groups. The purpose of this paper is to give some predictions of the thickening properties evolution based upon semi-empirical viscosity laws. [Pg.117]

We have previously performed a systematical study of the degradation of a acrylamide-acrylic acid copolymer called sample C( of acrylate content r — 17% and molecular weight Mw — 6 106 ) prepared by... [Pg.118]

We have recently performed systematical measurements of the intrinsic viscosity of acrylamide-acrylic acid copolymers for large ranges of r and a, in the presence of CaCl2(26). Our results show that the empirical relation (14) can be extended to the case of divalent cations by using the value of 7 given in relation (15). It should then possible to predict the variation of intrinsic viscosity at infinite dilution, but at finite concentration the formation of aggregates makes difficult the determination of the Huggins constant. [Pg.123]

In this work, we propose a method based on different combined semi-empirical laws to predict the evolution of the viscosity of a solution of acrylamide - acrylic acid copolymer. In fact, it appears... [Pg.125]

Interactions Between Acrylamide—Acrylic Acid Copolymers and Aluminum Ions in Aqueous... [Pg.129]

In a first part of this paper, we will discuss results of a 27A1 NMR study of the binding of Al ions on acrylamide-acrylic acid copolymers as a function of pH, at the light of a simple electrostatic model. The second part deals with the phase diagrams, physical gelation and precipitation phenomenon, for different copolymer compositions and under various conditions of concentrations, pH and salinity. [Pg.129]

Acrylamide Acrylic acid Methacrylic acid Maleic acid... [Pg.49]

Radiation Induced Reactions. Graft polymers have been prepared from poly(vinyl alcohol) by the irradiation of the polymer-monomer system and some other methods. The grafted side chains reported include acrylamide, acrylic acid, acrylonitrile, ethyl acrylate, ethylene, ethyl methacrylate, methyl methacrylate, styrene, vinyl acetate, vinyl chloride, vinyl pyridine and vinyl pyrrolidone (13). Poly(vinyl alcohols) with grafted methyl methacrylate and sometimes methyl acrylate have been studied as membranes for hemodialysis (14). Graft polymers consisting of 50% poly(vinyl alcohol), 25% poly(vinyl acetate) and 25% grafted ethylene oxide units can be used to prepare capsule cases for drugs which do not require any additional plasticizers (15). [Pg.84]

The graft copolymers of acrylamide, acrylic acid, and cellulose or starch are used as water absorbents and in enhanced oil recovery systems. [Pg.216]

Type II (slow homodimerization) Styrene, allylstannanes" Styrene, 2° allylic alcohols, vinyl dioxolanes, vinyl boronates Styrenes (large ortho substit.) " " 2° allylic alcohols, vinyl epoxides, unprotected 3° allylic alcohols, acrylates, acrylamides, acrylic acid, acrolein, vinyl ketones, vinyl boronates perfluorinated alkane olefins ... [Pg.196]

The monomers (acrylamide, acrylic acid, and methacrylamide) and the redox activators (ferrous ammonium sulfate and cuprous chloride) were used as received. [Pg.227]