Study on Alkaline Hydrolysis of Polyacrylamide by 13 C NMR
Alkaline hydrolysis of a polyacrylamide sample was performed in aqueous sodium hydroxide (NaOH) solutions at various NaOH concentrations to investigate the effects of hydrolysis conditions on the
On the Kinetics of Polyacrylamide Alkaline Hydrolysis. Preparation of ion-exchange membranes by hydrolysis of radiation-grafted polyethylene-g-polyacrylamide membranes. Journal of Applied Polymer Science 2003, 90 (10.1002/app.v90:1) , 149-154. DOI: 10.1002/app.12612.
Alkaline Hydrolysis of Polyacrylamide
Previous investigations have found that alkaline hydrolysis of a polyacrylamide hydrogel stochastically (and therefore uniformly) introduces ionic residues into the gel network by converting
Polyacrylamide has been reported to show an abnormal behavior on alkaline hydrolysis, that is, the reaction rate is quite high at the initial stage and decreases rapidly with increasing conversion. This phenomenon has been attributed to the polymer structure.
Hydrolysis of polyacrylamide and acrylic acid-acrylamide
The hydrolysis of acrylamide-acrylic acid copolymers has been studied as a function of pH and of the initial composition of the samples. Our experimental results confirm the intramolecular catalysis by neighbouring undissociated carboxylate groups for 3 < pH < 5, as already demonstrated by Smets et al., and the catalysis of OH − ions with autoretarded kinetics for pH > 11.
Trade Shows ; Get the App ; Products. Related Searches for polymer hydrolysis: alkaline hydrolysis amino hydrolysis sugar hydrolysis decor hydrolysis flame hydrolysis hydrolysis ether ether hydrolysis excell hydrolysis 8 in 1 hydrolysis hydrolysis reactor thermal hydrolysis peptide hydrolysis hydrolysis machine gelatin hydrolysis enhance
Preparation of ion‐exchange membranes by the hydrolysis
Ion‐exchange membranes were prepared by the alkaline hydrolysis of radiation‐grafted polyethylene‐g‐polyacrylamide membranes. The hydrolyzed membranes showed a good water uptake of approximately 1060 for a graft level of 590%. The electrical resistance of the membranes decreased with an increase in the degree of grafting up to 200% and
Proceedings of the National Academy of Sciences, 115(24), E5576-E5584. [Read more] 5. Mayer, B., Jung, S., Brauns, M., & Münker, C. (2025). The role of mantle-hybridization and crustal contamination in the petrogenesis of lithospheric mantle-derived alkaline rocks: constraints from Os and Hf isotopes.
ASTM International - Journal of Forensic Sciences 1972
International Trade in Bear Gall Bladders: Forensic Source Inference. Identification of the Fragmentary, Burned Remains of Two U.S. Journalists Seven Years After Their Disappearance in Guatemala. Variation in Birth Timing and Location of the Neonatal Line in Human Enamel
JFS2003364: Allele Frequencies and Statistical Parameters for Penta E and Penta D STR Loci in Córdoba (Argentina) Population - 01 March 2004. JFS2003373: Minimal Y-Chromosome Haplotypes Plus DYS287 in Jewish Populations - 01 March 2004. JFS2003390: Population Genetics of Two STR Loci D2S1396 and D6S474 in a Chinese Population - 01 March 2004
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This study aimed to evaluate the effects of Co60 on the posture of engorged females of tick R. (B) microplus in the pre-laying phase and on the hatchability of their eggs when submitted to doses from 0 to 400 Gy where it was found that ionizing radiation affected approximately 70% the egg laying weight of these females, that the egg hatching rate of the Witness was 68.2% higher than the lowest
- How can we improve water quality in Thailand?
- Once water quality problems have been identified, it is necessary to develop targets for restoration to undertake the planning exercise on a basin-wide basis. The Pollution Control Department (PCD) has developed master plans for water-quality management for all 25 river basins in Thailand.
- How many wastewater treatment plants are there?
- Over 40 treatment plants are currently under construction. Major wastewater treatment systems are stabilization ponds, aerated lagoons, oxidation ditches, and activated sludge process. However, most of the operating treatment facilities are in significant levels of treatment efficiency, while two of them are currently out of service.
- Where are DDT metabolites found in Thailand?
- DDT and metabolites were found in the range of 18–20 ng/L at Krabi province (West Coast). Aldrin (5 ng/L) was detected at the lower part of Chao Praya river. The concentration of HCH and its isomers ranged from 10 to 17 ng/L in three provinces in the south of Thailand.
- What chemicals are emitted from wastewater discharges?
- Wastewater discharges emit various kind of pollutants. These substances include household chemicals, such as surfactants, pharmaceuticals and insect repellents, agricultural chemicals, such as pesticides as well as industrial chemicals, inorganics and heavy metals ( Knepper et al., 1999 ).
