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Hydrolysis and thermal stability of partially hydrolyzed polyacrylamide in high‐salinity environments – Oliveira – 2019 – Journal of Applied

8/4/2019 · Therefore, a method was developed to monitor the thermal stability of HPAM solutions in different saline environments and varying temperatures. The proposed test method involved measurements of intrinsic viscosity as a function of time and

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Thermal Stability of r-Amylase from Aspergillus oryzae Entrapped in Polyacrylamide Gel

the thermal stability (50-75 C) of Aspergillus oryzaeR-amylase immobilized in polyacrylamide gel in phosphate buffer, mashed potatoes, and minced shrimp was examined. Changing the cross-linking agent concentration from 3.3 to 5.3% and adding 2%

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Stability of Partially Hydrolyzed Polyacrylamides at Elevated Temperatures in the Absence of Divalent Cations

polymer stability without using chemical oxygen scavengers and antioxidants. We first describe an effective method to prepare, store, and study polymer solutions that contain less than 0.1 parts per billion (ppb or µg/L) dissolved oxygen.

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Polyacrylamide beads: Polymer entrapment increases the catalytic efficiency and thermal stability of protease – ScienceDirect

1/2/2018 · Thermal stability of free and entrapped protease was investigated in which both free and entrapped enzyme were pre-incubated in Tris-HCl buffer (pH: 5.0, 50 mM) at different temperature (30 C–70 C) for different time with a 30.0 min interval

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Polyacrylamide–metal nanocomposites: one-pot synthesis, antibacterial properties, and thermal stability | SpringerLink

23/8/2013 · The effect of different metals on the thermal stability of PAM is also presented in Fig. 8b. The residual weight of PAM is 17.9 % at 900 °C, while for PAM–Au, PAM–Ag, and PAM–Pd nanocomposites, the residual weights are 22.6, 25.9, and 26.7 %,

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Process and application of polyacrylamide PAM – CHINAFLOC

Polyacrylamide has good thermal stability. Due to the structure unit with polar groups, amide, easy to form hydrogen bonds, so that it has good water solubility and high chemical activity, easy by grafting and crosslinking are even or reticular

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Impact of anionic polyacrylamide on stability and surface properties of the Al2O3–polymer solution system at different temperatures

adsorbed polyacrylamide, the difference between the initial PAM concentration and that after the adsorption process was calculated (using the calibration curve obtained earlier). The probes for thermal analysis were prepared by adding 0.1gofAl

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Thermal degradation kinetic of poly(acrylamide-co-sodium acrylate) hydrogel applying isoconversional methods | Request PDF

Request PDF | Thermal degradation kinetic of poly(acrylamide-co-sodium acrylate) hydrogel applying isoconversional methods | Hydrogel of poly(acrylamide-co-sodium

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Thermal Stability Evaluation of EOR Polymer: Best Practices & Guidelines | Earthdoc

A New Thermally Stable Synthetic Polymer for Harsh Conditions of Middle East Reservoirs. Part I. Thermal Stability and Injection in Carbonate Cores. Dupuis, G., et al.Abu Dhabi, UAE : s.n., 2017. SPE Abu Dhabi International Petroleum and

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US20170022486A1 – A method for producing a phytase variant with improved thermal stability, and a phytase variant and the use thereof – Google Patents

The present invention relates to the field of genetic engineering, in particular, the present invention relates to a method for producing a phytase variant with an improved thermal stability, and a phytase variant and the use thereof. The phytas

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Microstructure, thermal and mechanical properties of composite films based on carboxymethylated nanocellulose and polyacrylamide

For attaining eco-friendly nanocellulose-based films with enhanced thermal and mechanical properties, a series of composite films was fabricated by using a facile casting method of aqueous carboxymethylated cellulose nanofibril (c-CNF)

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Improved rheology and high-temperature stability of hydrolyzed polyacrylamide using graphene oxide nanosheet

1 Improved rheology and high-temperature stability of hydrolysed polyacrylamide using graphene oxide nanosheet Maje Alhaji Haruna1, Shahid Pervaiz1, Zhongliang Hu1, Ehsan Nourafkan1, Dongsheng Wen1, 2* 1School of Chemical and Process

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Preparation and Testing of Partially Hydrolyzed Polyacrylamide Solutions | SPE Annual Technical Conference and Exhibition | OnePetro

Section II continues with methods to assess the properties (screen factor viscosity and thermal stability) of polyacrylamide dissolved in brine. It also contains polyacrylamide dissolved in brine. It also contains a new analytical method to dete

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Polyacrylamide Gel-Entrapped Maltase: An Excellent Design of Using Maltase in Continuous Industrial Processes | SpringerLink

4/2/2016 · Thermal stability is an important limiting factor for prolonged use of enzymes in different industrial bioprocesses. Considering its significance, free and entrapped maltases were also investigated for thermal stability by preincubating them at

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Shape-Stable Hydrated Salts/Polyacrylamide Phase-Change Organohydrogels for Smart Temperature Management

Shape-Stable Hydrated Salts/Polyacrylamide Phase-Change Organohydrogels for Smart Temperature Management ACS Appl Mater Interfaces . 2021 May 12;13(18):21810-21821. doi: 10.1021/acsami.1c03996.

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WATER-IN-OIL POLYACRYLAMIDE-BASED MICROEMULSIONS AND RELATED METHODS – Exacto, Inc.

This involves utilizing a polyacrylamide where the polyacrylamide chains are contained in small droplets of water that are dispersed in oil by using emulsifiers to help make the two phases mix. Emulsions are droplets or “bubbles” of liquid,

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Analysis of members of the Ig-gene superfamily by thermal gradient polyacrylamide gel electrophoresis.

Using native PAGE, major histocompatibility complex (MHC) class I molecules, preloaded with the iodinated peptide FAPGNYPAL could be melted in a 4-40 degrees C TG to release the peptide. The method is in general applicable to thermal stability a

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SDS-PAGE

SDS-PAGE is an electrophoresis method that allows protein separation by mass. The medium (also referred to as ′matrix′) is a polyacrylamide-based discontinuous gel. The polyacrylamide-gel is typically sandwiched between two glass plates in a

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Polyacrylamide Gel-Entrapped Maltase: An Excellent Design of Using Maltase in Continuous Industrial Processes.

In the current study, entrapment technique was comprehensively examined using polyacrylamide gel as a matrix support to improve the stability and catalytic efficiency of maltase for continuous use. Maximum entrapment yield of maltase was

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