best sell polyacrylamide thermal stability in kumasi
best sell polyacrylamide thermal stability in kumasi
best sell polyacrylamide thermal stability in kumasi
best sell polyacrylamide thermal stability in kumasi
best sell polyacrylamide thermal stability in kumasi
long-term stability prediction of polyacrylamide-type

Long-term stability prediction of polyacrylamide-type

Concerning the use of TGA technique on polyacrylamide-type polymer, the research work published to date has focused on investigating changes of polymer¡¯s thermal stability as a result of successful modification of polymer structure incorporated with different monomer units [31], [32], [33]. There are few researches to explore the application

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polyacrylamide degradation and its implications

Polyacrylamide degradation and its implications

High molecular weight (10 6 ¨C3 ¡Á 10 7 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and friction...

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thermal decomposition of acrylamide from polyacrylamide

Thermal decomposition of acrylamide from polyacrylamide

The thermal decomposition of polyacrylamide (PAA) has received continued attention in the literature [1¨C5] for the following reasons: (i) PAA is used as an important thermoplastic material in many industries; (ii) the acrylamide monomer, which is a neurotoxin and carcinogen, can be present in small amounts in polymerized acrylamide; and (iii) PAA used in the food industry may contaminate

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thermal decomposition behavior and mechanism study of

Thermal decomposition behavior and mechanism study of

The thermal decomposition behavior of polyacrylamide poly (methacryloyloxyethyl trimethylammonium chloride-acrylamide) (P (DMC-AM)) was studied by means of TG and DSC under nitrogen atmosphere at temperature range of 323.15¨C823.15 K. The effect of cationicity on thermal stability was discussed.

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design and study of a novel thermal-resistant and shear

Design and Study of a Novel Thermal-Resistant and Shear

The TG characterization was used to test the thermal stability of PASD, it showed that the PASD had a higher decomposition temperature compared to traditional polyacrylamide due to the presence of an aromatic ring and ¨CSO 3 ? groups. From the results of salinity tolerance test and element analysis, besides the SEM images of PASD in high

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thermodynamic stability of polyacrylamide and poly(n,n

Thermodynamic stability of polyacrylamide and poly(N,N

Thermal degradation to form a radical would require the cleavage of carbon¨Ccarbon bonds in the polymer chain; the energy needed for this cleavage was found to depend on the structure of the repeat unit which ranged from low of 72.5 kcal for a rare head-to-head construct to 86.2 kcal for a normal head-to-tail polymer construct (therefore, for

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mechanism of polyacrylamide hydrogel instability on high

Mechanism of Polyacrylamide Hydrogel Instability on High

It has been widely accepted that the loss of gel thermal stability can be explained via three aspects: the rupture of polymer chains, the breakage of cross-linker chains, and hydrolysis of polymer. The mechanism of hydrogel syneresis through polymer hydrolysis has been investigated extensively in other publications.

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synthesis and performance evaluation of poly (acrylamide-co

Synthesis and performance evaluation of poly (acrylamide-co

The TGA profile was performed to assess how copolymerization improves the thermal stability compared to polyacrylamide thermal stability profiles found in the literature. The actual TGA profile of polyacrylamide from the literature indicates decomposition with maximum weight losses at 198, 300, and 425 ¡ãC, with the deamination reaction

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molecules | free full-text | molecular dynamics-assisted

Molecules | Free Full-Text | Molecular Dynamics-Assisted

Polyacrylamide has promising applications in a wide variety of fields. However, conventional polyacrylamide is prone to hydrolysis and thermal degradation under high temperature conditions, resulting in a decrease in solution viscosity with increasing temperature, which limits its practical effect. Herein, combining molecular dynamics and practical experiments, we explored a facile and fast

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mechanical and thermal stability of polyacrylamide-based

Mechanical and Thermal Stability of Polyacrylamide-based

The exceptional mechanical and thermal stability of the polyacrylamide-based microgels and their easiness to be tailored for the required application make these chemicals excellent candidates as future sweep improvers under harsh reservoir conditions in which other conventional polymers might fail. Keywords:

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