Ethyl methacrylate characterization

Hyperbranched poly(ethyl methacrylate)s prepared by the photo-initiated radical polymerization of the inimer 13 were characterized by GPC with a lightscattering detector [51]. The hydrodynamic volume and radius of gyration (i g) of the resulting hyperbranched polymers were determined by DLS and SAXS, respectively. The ratios of Rg/R are in the range of 0.75-0.84, which are comparable to the value of hard spheres (0.775) and significantly lower than that of the linear unperturbed polymer coils (1.25-1.37). The compact nature of the hyperbranched poly(ethyl methacrylate)s is demonstrated by solution properties which are different from those of the linear analogs. 

In this study, we demonstrate new pH/temperature-sensitive polymers with transitions resulting from both polymer-polymer and polymer-water interactions and their applications as stimuli-responsive drug carriers [22-23], For this purpose, copolymers of (Ai,Ai-dimethylamino)ethyl methacrylate (DMAEMA) and ethylacrylamide (EAAm) [or acrylamide (AAm)] were prepared and characterized as polymeric drug delivery systems modulated for pulsatile and time release. 

Yancheva E, Paneva D, Maximova V et al. (2007) Polyelectrolyte complexes between (cross-linked) (V-carboxyethylchitosan and (quatemized) poly[2-(dimethylamino)ethyl methacrylate] preparation, characterization, and antibacterial properties. Biomacromolecules... 

Preparation and Characterization of Styrene—Hydroxy ethyl Methacrylate Copolymers... 

To study the internal crosslinking of styrene-hydroxy ethyl methacrylate copolymers, it was necessary to prepare a range of well characterized materials containing only low concentrations of hydroxyethyl methacrylate. To ensure that the copolymers were of uniform composition, only low monomer conversions were used so that the composition of the monomer mixtures did not change appreciably during the reaction. Low polymerization temperatures were used to obtain high molecular weight copolymers. 

Srinivasulu P, Raghunath Rao P, Sundaram EV (1991) Synthesis and characterization of ethyl methacrylate-acrylamide copolymers. J Appl Polym Sd 43(8) 1521-1525... 

Zeng F, Shen Y, Zhu S, Pelton R. (2000) Synthesis and Characterization of Comb-Branched Polyelectrolytes. 1. Preparation of Cationic Macromonomer of 2-(Dimethylamino)ethyl Methacrylate by Atom Transfer Radical Polymerization. Macromolecules 33 1628-1635. 

Al-Saigh, Z. Y. Chen, P., "Characterization of Semicrystalline Polymers by Inverse Gas Chromatography. 2. A Blend of Poly(Vinylidene Fluoride) and Poly(Ethyl Methacrylate)," Macromolecules, 24, 3788 (1991). 

Some two stage emulsion graft copolymer materials synthesized and characterized by DMS include) the series poly (methyl methacrylate)/poly(n-butyl acrylate) (PMMA/ PnBA) synthesized by Dickie (14) and the series poly(ethyl methacrylate)/poly(n-butyl acrylate) (PEMA/PnBA) synthesized by Sperling et al. (1) The present study will continue the development of the PEMA/PnBA damping materials by incorporating a common comonomer) ethyl acrylate (EA)) in both stages of the emulsion polymerization. 

Hu, L. et al.. Preparaton and characterization of novel cationic pH-responsive polyl A. iV -diincthylamino ethyl methacrylate) microgels, J. Colloid Interf. Sci., 311, no, 2007. 

A scheme of the experimental setup is shown in Fig. 83, where a laser beam (355 nm, 3 ns) is directed from the rear of the target film onto the triazene polymer film (doped with pyrene) as shown in Fig. 82. The laser fluence was estimated by averaging the total energy of the incident beam over the irradiated area. The target films [poly(butyl methacrylate), PBMA, Tg=293 K and poly(ethyl methacrylate), PEMA, Tg=338 K] were characterized with a fluorescence microscope and a conventional spectrofluo-rometer. 

B.S. Kaith, R. Jindal, J.K. Bhatia, "Synthesis and characterization of SPC-g-poly (ethyl-methacrylate) and evaluation of thermal stability" Proceedings of the Second International Conference on Polymer Processing and Characterization, Kottayam, Kerala, 2010. 

Nunes JS, De Vasconcelos CL, Cabral FO, et til. (2(X)6) Synthesis tmd characterization of poly(ethyl methacrylate-co-methacrylic acid) magnetic particles via miniemulsion polymerization. Polymer 47 7646-7652... 

Polymer (B) Characterization poly(3,4-dichlorobenzyl methacrylate-coethyl methacrylate) 70 mol% ethyl methacrylate, TJK = 332.2, p (298 K) = 1.14 g/cm, synthesized in the laboratory 2001KA1... 

Huang, J. Cusick, B. Pietrasik, J. Wang, L. Kowalewski, T. Lin, Q. Matyjaszewski, K. Synthesis and in situ atomic force microscopy characterization of temperature-responsive hydrogels based on poly(2-(dimethylamino)ethyl methacrylate) prepared by atom transfer radical polymerization. Langmuir 2007, 23 (1), 241-249. 

Figure 16 Outline of the cleavage and characterization of side chains in molecular brushes (a) P/iBA side chains by acid solvolysis, and (b) poly [2-(trimethylsilyloxy)ethyl methacrylate] (PTMS-HEMA) side chains or poly[[2-(methacryloyloxy)ethyl] trimethylammonium iodide] (PMETAI) side chains by basic hydrolysis.

Pekel, N., ahiner, N., Giiven, O., and Rzaev, Z. M. 2001. Synthesis and characterization of JV-imidazole-ethyl methacrylate copolymers and determination of monomer reactivity ratios. European Polymer Journal 37 2443-2451. 

Block co-polymers of styrene/f-butyl methacrylate (MW = 240,000) were analyzed on C]g and phenyl columns (photodiode array detector) using a 15-min 90/10 0/100 methanol/THF gradient [243]. Useful MW distribution characterization resulted when known polystyrene standards were utilized as the molecular weight calibrators. Injections containing 4 pg of polymer were used. Methanol has been used as the polar mobile i ase constituent for co-poly(styrene/acrylonitrile) [244] and styrene/ethyl methacrylate co-polymer analyses [245,246], Ethanol provided increased solubility and was used for polymethyl methacrylate-gra/f-polydimethyl siloxane co-polymers [247]. 

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