نتایج جستجو برای: poly methyl metacrylate

تعداد نتایج: 185798  

Two new samples of poly(amide-imide)/nanocomposites containing bicyclo segment and dibenzalaceton moiety in the main chain were synthesized by a solution intercalation technique. Poly(amide-imide) (PAI) 8 as a source of polymer matrix was synthesized by the direct polycondensation reaction of N,N´-bis(4-carboxyphenyl)bicyclo[2,2,2]oct-7-ene-2,3,5,6-tetracarboxylic diimide 3 with 2,6-bis(4-amino...

Journal: :Chemical communications 2008
Abdullah Aydogan Daniel J Coady Vincent M Lynch Ahmet Akar Manuel Marquez Christopher W Bielawski Jonathan L Sessler

Poly(methyl methacrylate)s containing pendant octamethylcalix[4]pyrrole subunits were prepared and demonstrated to be capable of extracting tetrabutylammonium chloride and fluoride salts from aqueous media.

2006
Shouzhi Pu Huohong Tang Bing Chen Jingkun Xu Wenhao Huang

We had accomplished recording and readout of bit patterns by two-photon 3D optical storage technology using a new photochromic diarylethene, 1,2-bis(2-methyl-5-methylene-n-butylamido-thien-3-yl) perfluorocyclopentene (BMMBTP), as memory medium. The photochromic reaction, both in solution and in poly(methyl methacrylate) (PMMA) amorphous film, and fluorescence property of BMMBTP were investigate...

Two new samples of poly(amide-imide)/nanocomposites containing bicyclo segment and dibenzalaceton moiety in the main chain were synthesized by a solution intercalation technique. Poly(amide-imide) (PAI) 8 as a source of polymer matrix was synthesized by the direct polycondensation reaction of N,N´-bis(4-carboxyphenyl)bicyclo[2,2,2]oct-7-ene-2,3,5,6-tetracarboxylic diimide 3 with 2,6-bis(4-amino...

Journal: :Journal of the Institute of Science and Technology 2021

Bu çalışmada, polimer güneş hücrelerinde boşluk ileten katman olarak kullanılan Poly(3,4- ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)’ye değişik boyutlardaki (5 nm, 10 20 nm ve 30 nm) gümüş (Ag) nanoparçacıkları katkılanarak ITO (Indium tin (kalay) oxide) üzerine Döndürerek Kaplama (Spin Coating) yöntemiyle kaplandı. Katkılı katkısız PEDOT:PSS numuneleri, 110 °C, 130 °C 150 sıca...

Journal: :Hitite journal of science and engineering 2022

This study includes the design, synthesis and characterization of 1,2-phenylenediamine (o-PDA) functionalized maleic anhydride (MA)-vinyl acetate (VA) copolymer-based conjugate to develop a new formulation. The molecule is fluorescent dye that allows designing chemotherapeutic polymeric molecules. Poly(maleic anhydride-alt-vinyl acetate) [Poly(MA-alt-VA)] was obtained via charge transfer comple...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2001
W Ying M B Sevigny Y Chen R A Swanson

Excessive activation of poly(ADP-ribose) polymerase 1 (PARP1) leads to NAD(+) depletion and cell death during ischemia and other conditions that generate extensive DNA damage. When activated by DNA strand breaks, PARP1 uses NAD(+) as substrate to form ADP-ribose polymers on specific acceptor proteins. These polymers are in turn rapidly degraded by poly(ADP-ribose) glycohydrolase (PARG), a ubiqu...

Journal: :Macromolecules 2022

In this study, we compare poly(glycerol monomethacrylate) (PGMA) of different chain lengths and architectures (linear two-arm) with poly(poly(ethylene glycol) methyl ether methacrylate) (PPEGMA) as an alternative polymer platform for the synthesis a new generation protein–polymer conjugates. Mono- two-arm functional atom-transfer radical polymerization (ATRP) initiators were designed selectivel...

Journal: :Memorias do Instituto Oswaldo Cruz 2003
Beatriz Gomes Brazil José Lino-Neto Reginaldo Peçanha Brazil

Phlebotominae sand fly specimens were prepared for histological and physiological studies. Different fixatives were tested on sectioned and whole bodied adult females in order to obtain good fixation and provide satisfactory penetration of the embedding media. All fixed specimens were infiltrated (up to seven days under 5 C) and embedded in hydroxyethyl metacrylate. Two-three m sections were s...

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