نتایج جستجو برای: polyacrylamide polymer

تعداد نتایج: 111606  

Journal: :Journal of Scientific Research 2023

Excessive water production in the oil field is major difficulty for petroleum industry. Remedial techniques need to be applied control this excess considering health, safety, and environmental issues improve reservoir's economic productive life. In study polymer gel system comprising partially hydrolyzed polyacrylamide (PHPA) organic cross-linkers (Hydroquinone Hexamethylene tetramine) were pre...

2011

The fluorescence and amplified spontaneous emission characteristics of rhodamine 6G impregnated in polyacrylamide is reported in this chapter. Using amplified spontaneous emission gain radiative and related properties of this dye doped matrix was measured. It was found that photostability of rhodamine 6G is unusually high in this matrix compared to other polymer hosts like polyrnethylmethacrylate.

Journal: :Journal of physics 2022

Abstract In this study, the molecular dynamics simulation of imidazole-modified polyacrylamide (VPAM) and (PAM) system showed that VPAM containing had better cohesion-bonding effect than PAM without imidazole. Based on imidazole-containing system, cohesion properties functional monomers mechanism in process were analyzed at high temperature salt, structure-activity relationships between chemica...

Journal: :Biomimetics 2023

The synthesis and physicochemical properties of hydrogels with interpenetrated physical chemical networks were considered in relation to their prospective application as biomimetic materials biomedicine bioengineering. study was focused on combined based natural polysaccharide—calcium alginate (CaAlg) a synthetic polymer–polyacrylamide (PAAm). series varying proportions among polyacrylamide hav...

2014
Timur Imankulov Danil Lebedev

This article discusses development of the "Polymer flooding" module for distributed information system of oil fields development analysis. This module is designed to simulate displacement of oil using polymer injection method for 1532 Timur Imankulov et al. enhanced oil recovery and based on modern mathematical model that considers influence of salt and polymer concentrations on viscosity of in...

1997
Yubao Zhang Chi Wu Qing Fang Yun-Xiang Zhang

Fluorocarbon-modified polyacrylamide chains can form large multichain aggregates. The aggregation behavior of a series of fluorocarbon-modified polyacrylamides in water has been investigated by a combination of static and dynamic laser light scattering (LLS). The critical aggregation concentration (CAC) was estimated from the emergence of a second peak in the line-width distribution measured in...

2013
Sumonman Niamlang Tawansorn Buranut Amornrat Niansiri Anuvat Sirivat

The aim of this paper is to investigate the effects of hydrogel mesh size, a conductive polymer, and electric field strength on controlled drug delivery phenomena using drug-loaded polyacrylamide hydrogels prepared at various crosslinking ratios both with and without a conductive polymer system. Poly(p-phenylene vinylene), PPV, as the model conductive polymer, was used to study its ability to c...

Excessive water production through fractures become an important problem in oil exploration of fractured reservoirs. For this purpose, polymer gels were prepared by crosslinking of aqueous solutions of polymer and crosslinker for the purpose of water management in high water cut fractured reservoirs. A copolymer of sulfonated polyacrylamide was used as polymer and chromium triacetate (Cr(OA...

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