Results 11 to 20 of about 508,276 (294)

Polyacrylamide and Polyacrylamide/Polysaccharide Hydrogels for Well Water Shutoff in High-Temperature Reservoirs [PDF]

Gels
Polyacrylamide and polyacrylamide/polysaccharide hydrogels exhibiting high structural and mechanical properties, along with acceptable gelation times and gelant viscosity, are proposed for water shutoff applications in high-temperature reservoirs.
Aleksey Telin, Natalia Sergeeva, Rustem Asadullin, Ekaterina Gusarova, Ravil Yakubov, Vladimir Dokichev, Anatoly Politov, Elina Sunagatova, Natalia Gibadullina, Galina Teptereva, Lyubov Lenchenkova   +10 more
doaj   +2 more sources

Mycobacterium tuberculosis infection following polyacrylamide hydrogel (Amazingel) breast augmentation: A case report and literature review [PDF]

Medicine (Baltimore)
Jianfei Zhang, D Zhang, Kaixi Tan, Bin Jiang   +3 more
openalex   +2 more sources

Aligned Cellulose Nanocrystal Composite Filament with High Tensile Strength Enhanced by Cationic Polyacrylamide via Flow Focusing Approach

BioResources, 2023
Unsatisfactory macroscopic strength is one of the important reasons that limit the application of cellulose composites. However, the mechanical properties of cellulose composites could be improved by the directional orientation of cellulose nanofibers ...
Yuda Wang, Pinle Zhang, Jinge Guo, Ziyi Zhong, Wei Li, Xinliang Liu   +5 more
doaj   +2 more sources

Pore Engineering of MFI Zeolite Membranes: Enhancing Water Flux and Ion Rejection Using Polyacrylamide as a Secondary Template [PDF]

Chemical and Biochemical Engineering Quarterly
A mesoporous MFI zeolite membrane was synthesized using polyacrylamide as a secondary template to separate nickel, chromium, and nitrate ions from water.
R. Shahbaz, M. J. Vaezi
doaj   +1 more source

Preparation of Some mercurated Polyacrylamide and It’s Copolymers and Their Industrial Applications [PDF]

Kirkuk Journal of Science, 2017
polyacrylamide and some of its copolymers with styrene and N-vinyl carbazole have been prepared by free radical polymerization and some chemical modifications by using bromine, xanthhydrol and mercuration with mercury oxide and mercuric acetate have been
Farah. Kh. H. Al-juboory, Ahmed A. H. Al-kadhimi   +1 more
doaj   +1 more source

Development of Greener D-Metal Inorganic Crosslinkers for Polymeric Gels Used in Water Control in Oil and Gas Applications

Energies, 2020
Crosslinkable polymers, such as polyacrylamide (PAM), are widely applied for water control in oil and gas reservoirs. Organic and inorganic crosslinkers are used to formulate a gel with PAM.
Hassan I. Nimir, Ahmed Hamza, Ibnelwaleed A. Hussein   +2 more
doaj   +1 more source

Poly(acrylic acid-co-acrylamide)/Polyacrylamide pIPNs/Magnetite Composite Hydrogels: Synthesis and Characterization

Gels, 2023
Novel composite hydrogels based on poly(acrylic acid-co-acrylamide)/polyacrylamide pseudo-interpenetrating polymer networks (pIPNs) and magnetite were prepared via in situ precipitation of Fe3+/Fe2+ ions within the hydrogel structure.
Marin Simeonov, Anton Atanasov Apostolov, Milena Georgieva, Dimitar Tzankov, Elena Vassileva   +4 more
doaj   +1 more source

An experimental study on modification of pervious concrete properties using polyacrylamide [PDF]

Građevinski Materijali i Konstrukcije
This study tends to use polyacrylamide (PAM) as a potential cement replacer for the enhancement of pervious concrete properties. The study considers four different replacement percentages and compares them with a zero-percentage replacement mix.
Abhinaya Madhavan, Parthiban Rangasamy, Sivakumar Naganathan   +2 more
doaj   +1 more source

Swelling of polyacrylamide gels in polyacrylamide solutions

Journal of Polymer Science Part B: Polymer Physics, 1998
Swelling behavior of polyacrylamide (PAAm) and polyacrylamide-co-poly- acrylic acid (PAAm-co-PAAc) gels was investigated in aqueous solutions of monodis- perse PAAms with molecular weights (M V w) ranging from 1.5 1 10 3 to 5 1 10 6 g/mol. The volume of the gels decreases as the PAAm concentration in the external solution increases.
Kayaman, N, Okay, O, Baysal, BM
openaire   +2 more sources

Environment‐tolerant ionic hydrogel–elastomer hybrids with robust interfaces, high transparence, and biocompatibility for a mechanical–thermal multimode sensor

InfoMat, 2023
The human skin, an important sensory organ, responds sensitively to external stimuli under various harsh conditions. However, the simultaneous achievement of mechanical/thermal sensitivity and extreme environmental tolerance remains an enormous challenge
Ya Lu, Yiying Yue, Qinqin Ding, Changtong Mei, Xinwu Xu, Shaohua Jiang, Shuijian He, Qinglin Wu, Huining Xiao, Jingquan Han   +9 more
doaj   +1 more source