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isoelectric focusing in cyclic olefin copolymer microfluidic channels coated by polyacrylamide using a uv photografting method pubmed,as an alternative material to glass or silicon, microfluidic devices made from a cyclic olefin copolymer (coc) were fabricated. this material is of interest because of the relative ease of fabrication, low costs, and solvent resistance. however, as a result of the strong hydrophobic interactions nor .

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evaluation of polyacrylamide-grafted-polyethylene glycol/silica nanocomposite as potential additive in water based drilling mudt,it also exhibited low formation damage, high shale recovery, and high thermal stability than the partially hydrolyzed polyacrylamide (phpa) polymer in the developed drilling mud system. hence, this nanocomposite may be used as a potential drilling fluid additive in the water based drilling fluid system for shale formations.

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3.1.2. nuclear magnetic resonance spectroscopy further evidence for inclusion of two monomers was obtained by the 1 h-nmr and 13 c-nmr spectra of the copolymer.a typical presentation of the 1 h-nmr and 13 c-nmr spectra of am-co-amps copolymers is shown in figures 2 and 3, respectively., respectively.

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technical specifications of geotextile and applications in,well as elongation of geotextile using a wide-width strip specimen tensile method according to astm d4595. it is recommended that the specimen size used in the test are 200 mm wide and 100 mm long as shown in figure -5. fig -5: wide width tensile test specimen [12] the specimen will be subjected to a tensile load gradually

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