Letteratura scientifica selezionata sul tema "2-N,N-dimethylaminoethyl methacrylate"

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Articoli di riviste sul tema "2-N,N-dimethylaminoethyl methacrylate"

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Ševčík, Stanislav, e Martin Přádný. "Quaternary salts of N,N-dimethylaminoethyl esters of pivalic and 2-methyl-3-methoxypropionic acid and their hydrolysis". Collection of Czechoslovak Chemical Communications 51, n. 1 (1986): 206–14. http://dx.doi.org/10.1135/cccc19860206.

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Abstract (sommario):
The synthesis and kinetics of quaternization of model compounds of poly(N,N-dimethylaminoethyl methacrylate) in water-alcoholic solutions brought about by methyl iodide and the alkaline hydrolysis of products in water have been investigated. N,N-Dimethylaminoethyl pivalate was selected as a model of the structural unit of the reported polymer; N,N-dimethylaminoethyl-2-methyl-3-methoxypropionate was the model of the terminal unit of the anionically prepared polymer.
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Kanerva, Lasse, Tuula Estlander e Riitta Jolanki. "Active sensitization caused by 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, ethyleneglycol dimethacrylate and N,N-dimethylaminoethyl methacrylate". Journal of the European Academy of Dermatology and Venereology 1, n. 3 (ottobre 1992): 165–69. http://dx.doi.org/10.1111/j.1468-3083.1992.tb00628.x.

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Zhu, Mingyuan, Guangqin Luo, Lihua Kang e Bin Dai. "Novel catalyst by immobilizing a phosphotungstic acid on polymer brushes and its application in oxidative desulfurization". RSC Adv. 4, n. 32 (2014): 16769–76. http://dx.doi.org/10.1039/c4ra01367k.

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You, Jin-Oh, e Debra T. Auguste. "Feedback-regulated paclitaxel delivery based on poly(N,N-dimethylaminoethyl methacrylate-co-2-hydroxyethyl methacrylate) nanoparticles". Biomaterials 29, n. 12 (aprile 2008): 1950–57. http://dx.doi.org/10.1016/j.biomaterials.2007.12.041.

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5

París, Rodrigo, e Isabel Quijada-Garrido. "Temperature- and pH-responsive behaviour of poly(2-(2-methoxyethoxy)ethyl methacrylate-co-N,N-dimethylaminoethyl methacrylate) hydrogels". European Polymer Journal 46, n. 11 (novembre 2010): 2156–63. http://dx.doi.org/10.1016/j.eurpolymj.2010.09.004.

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Şen, M., e M. Sarı. "Radiation synthesis and characterization of poly(N,N-dimethylaminoethyl methacrylate-co-N-vinyl 2-pyrrolidone) hydrogels". European Polymer Journal 41, n. 6 (giugno 2005): 1304–14. http://dx.doi.org/10.1016/j.eurpolymj.2004.12.017.

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7

Karesoja, Mikko, Erno Karjalainen, Sami Hietala e Heikki Tenhu. "Phase Separation of Aqueous Poly(2-dimethylaminoethyl methacrylate-block-N-vinylcaprolactams)". Journal of Physical Chemistry B 118, n. 36 (2 settembre 2014): 10776–84. http://dx.doi.org/10.1021/jp5062368.

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Vassilev, Krassimir, e Sevdalina Turmanova. "Complexes of poly(2-N,N-dimethylaminoethyl) methacrylate with heavy metals I. Preparation and properties". Polymer Bulletin 60, n. 2-3 (20 novembre 2007): 243–50. http://dx.doi.org/10.1007/s00289-007-0864-8.

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9

Tang, Xin De, Xin Wang e Yuan Yuan Dou. "Triply-Responsive Poly(N,N-Dimethylaminoethyl Mathacrylate) with an Azobenzene Moiety". Materials Science Forum 663-665 (novembre 2010): 1049–52. http://dx.doi.org/10.4028/www.scientific.net/msf.663-665.1049.

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Abstract (sommario):
A serious of triply-responsive poly(N,N-dimethylaminoethyl methacrylate) (PMAEMA) containing an azobenzene group as the terminal group were synthesized by atom transfer radical polymerization (ATRP). The ATRP process of DMAEMA was initiated by an azobenzene derivative substituted with a 2-bromoisobutyryl group (Azo-Br) using CuCl/Me6TREN as catalyst and the mixture of DMA and H2O (v/v = 3:1) as solvent. The molecular weights and their distributions of the resulting homopolymers (Azo-PDMAEMA) were characterized by gel permeation chromatography (GPC). The polymers are soluble in aqueous media and exhibit a lower critical solution temperature (LCST) that alternated reversibly in response to pH and photoisomerization of the terminal azobenzene moiety. It was found that the LCST increased as pH decreased in the range of testing. Under UV light irradiation, the trans-to-cis photoisomerization of the azobenzene moiety resulted in a higher LCST, while it recovered under visible light irradiation.
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Andreeva, L. N., M. A. Bezrukova, S. V. Bushin, T. N. Nekrasova, R. T. Imanbaev, V. D. Pautov, Yu I. Zolotova, O. V. Nazarova e E. F. Panarin. "Conformational and dynamic characteristics of copolymers of N,N-dimethylaminoethyl methacrylate and 2-deoxy-2-methacrylamido-D-glucose". Polymer Science Series A 56, n. 4 (luglio 2014): 405–13. http://dx.doi.org/10.1134/s0965545x14040014.

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Tesi sul tema "2-N,N-dimethylaminoethyl methacrylate"

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Despres, Typhaine. "Synthesis of hyperbranched polymers with multiple reactive terminal groups by RAFT-SCVP". Electronic Thesis or Diss., Le Mans, 2024. http://www.theses.fr/2024LEMA1022.

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Abstract (sommario):
Ce projet vise à élaborer des polymères hyper-ramifiés (HBP) cationiques porteurs de multiples groupements terminaux fonctionnels afin de développer le multi-ciblage cellulaire de nouveaux vecteurs de gènes thérapeutiques. Ces HBP sont prometteurs pour traiter les troubles vasculaires et prévenir les maladies cardio-vasculaires associées à un dysfonctionnement endothélial chez les patients diabétiques. Les HBP, présentant de grands volumes intérieurs et un nombre élevé de groupes terminaux en périphérie, sont le plus souvent limités à un seul type de groupement terminal. La stratégie choisie pour lever ce verrou scientifique repose sur la combinaison de la polymérisation par auto-condensation de monomères vinyliques (SCVP) et de la polymérisation par transfert de chaîne par addition-fragmentation réversible (RAFT) suivie de la chimie de l’azlactone pour ancrer une grande variété de fonctions réactives chimiosélectives à la périphérie des HBP. Cette stratégie a été appliquée à la synthèse d’HBP neutres cationisables et porteurs du groupement thiocarbonylthio par RAFT-SCVP du méthacrylate de 2-N,N-diméthylaminoéthyle (DMAEMA) et du 2-(méthacryloyloxy)éthyl 4-cyano-4-(((propylthio)carbonothioyl)thio) pentanoate (R-transmer). Plusieurs HBP ont été synthétisés en faisant varier le rapport molaire DMAEMA/R-transmer, produisant ainsi une gamme d’HBP possédant des masses molaires moyennes en nombre allant de 8 300 à 45 800 g.mol-1, des dispersités supérieures à 1,59 et des degrés de branchement variés compris entre 0,05 et 0,.30. Ces HBP ont ensuite été modifiés chimiquement par cationisation des unités DMAEMA afin de proposer des entités capables de complexer l’ARN interférent anti-PTP1B, protéine d’intérêt dans le traitement du dysfonctionnement endothélial. Les HBP neutres ont également été fonctionnalisés par un dérivé de poly(éthylène glycol) et la modification des motifs terminaux thiocarbonylthio a permis d’ancrer successivement différents groupements réactifs via une séquence d’aminolyse, de thiol-ène et de réaction d’aminolyse azlactone-amine de type click, pour obtenir en périphérie des fonctions amines réactives pour la conjugaison avec des peptides de ciblage. Ainsi, des HBP originaux, neutres, PEGylés ou non, fonctionnalisés par des amines ont été obtenus. Ces composés finaux, ainsi que certains intermédiaires de synthèse, seront soumis à des tests biologiques réalisés en collaboration avec le laboratoire MINT à Angers afin d’évaluer leur cytotoxicité, leur capacité à complexer l’ARN et leur efficacité de transfection, in vitro et in vivo
This project aims at the synthesis of cationic hyperbranched polymers (HBP) with multiple functional end-groups to enable multi-targeting of cells with novel therapeutic gene vectors. These HBP hold potential for treating diabetes-associated vascular disorders and preventing cardiovascular diseases associated with endothelium dysfunction. HBP, characterized by their large interior volumes and a high number of terminal end-groups in periphery, are limited to a single type of terminal group. To overcome this limitation, the proposed strategy is based on the combination of self-condensing vinyl polymerization (SCVP) and reversible addition-fragmentation chain transfer (RAFT) polymerization, followed by the azlactone chemistry to anchor a high diversity of chemoselective reactive functions on the HBP periphery. This approach was applied to the synthesis of neutral, cationizable HBP with thiocarbonylthio groups using RAFT-SCVP of 2-N,N-dimethylaminoethyl methacrylate (DMAEMA) and 2-(methacryloyloxy)ethyl 4-cyano-4-(((propylthio)carbonothioyl)thio)pentanoate (R-transmer). By varying the DMAEMA/R-transmer molar ratio, a range of HBP with number-average molecular weight from 8 300 to 45 800 g.mol-1, dispersity above 1.59, and degree of branching between 0.05 and 0.30 has been synthesized. These HBP were further modified by cationization of the DMAEMA units to provide moieties able of electrostatic complexation with siRNA anti-PTP1B, a protein implicated in the endothelial dysfunction. The neutral HBP were also functionalized with a derivative of poly(ethylene glycol) and the thiocarbonylthio terminal groups were modified to anchor various reactive groups through a sequence of aminolysis, thiol-ene and azlactone-amine click reaction, in order to target reactive amines functions at the periphery able to conjugate with targeting peptides. Thus, new neutral, PEGylated and non-PEGylated, HBP displaying reactive amines functions were prepared. These final compounds, as well as some synthesis intermediates, will be submit to in vitro and in vivo biological tests in collaboration with the MINT laboratory in Angers, in order to evaluate their cytotoxicity, siRNA complexation and transfection efficiencies
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Deshmukh, Smeet, Lev Bromberg e T. Alan Hatton. "Synthesis and Properties of Novel Cationic, Temperature-Sensitive Block-Copolymers". 2003. http://hdl.handle.net/1721.1/3952.

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Abstract (sommario):
Facile, one-step synthesis of self-assembling, cationic block copolymers of poly(2-N-(dimethylaminoethyl) methacrylate) (pDMAEMA) and PEO-PPO-PEO (Pluronic®) is developed. The copolymers are obtained via free-radical polymerization of DMAEMA initiated by Pluronic-radicals generated by cerium (IV). The copolymers possess surface activity, are polycationic at pH<7.1, and self-assemble into micelle-like aggregates when neutralized. Potential applications of the novel copolymers for DNA transfection in gene therapy are discussed.
Singapore-MIT Alliance (SMA)
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