Ambient temperature Atom Transfer Radical copolymerization of tetrahydrofurfuryl methacrylate and methyl methacrylate: Reactivity ratio determination
TL;DR: In this paper, a tetrahydrofurfuryl methacrylate (THFMA) was polymerized by ambient temperature Atom Transfer Radical Polymerization (AT ATRP) using CuX/PMDETA/EBiB system.
About: This article is published in European Polymer Journal.The article was published on 2009-09-01. It has received 23 citations till now. The article focuses on the topics: Radical polymerization & Atom-transfer radical-polymerization.
Citations
More filters
TL;DR: The monomer reactivity ratios of MAOC and BMA were computed using Kelen-Tudos (K-T) and Fineman-Ross (F-R) methods and were found to be đ1=0.45, đ2=1.33, respectively, which is monomers reactivity ratio ofMAOC.
Abstract: Copolymerization and homopolymerization of 7-methacryloyloxy coumarin (MAOC) and its copolymers with benzyl methacrylate (BMA), methyl methacrylate (MMA), ethyl methacrylate (EMA), and isobuthyl methacrylate (IBMA) were performed by the free radical polymerization method (FRP) at low conversions ( đ 1 = 0 . 4 5 , đ 2 = 1 . 2 9 ; đ 1 = 0 . 4 6 ; đ 2 = 1 . 3 3 , respectively ( đ 1 is monomer reactivity ratio of MAOC). Blends of poly(MAOC) and poly(BMA) obtained via FRP method were prepared by casting films from dichloromethane solution and were characterized by DTA and TGA techniques. Dielectric measurements for MAOC homopolymer and its copolymers with EMA, MMA, and IBMA were carried out by means of an impedance analyzer as a function of temperature and frequence. Dielectric properties of polymer samples prepared in a plate form were measured at room temperature over the frequency range 0.1 kHzâ2 MHz and given as compared with each other.
24Â citations
Cites background or methods from "Ambient temperature Atom Transfer R..."
...At the temperatures where the polymer matrix is in its glassy state, the dielectric constant is much lower than that in the elastic state with a steep increase around the glass transition temperature [16]....
[...]
...Spectroscopic methods, preferably 1H-NMR spectroscopy [16, 17], and elemental analysis are probably the most widely used methods for the analysis of copolymers and the determination of reactivity ratios r1 and r2....
[...]
...The 1H NMR technique is well established as a simple rapid, and accurate method for the determination of copolymer composition [16, 17]....
[...]
TL;DR: In this paper, the atom transfer radical copolymerization (ATRcP) of GMA and PEHA was carried out in bulk and in toluene at 70 °C at different molar feed ratios using CuCl as catalyst in combination with 2,2â˛-bypyridine (bpy) as a ligand.
Abstract: This investigation reports the atom transfer radical copolymerization (ATRcP) of glycidyl methacrylate (GMA) and 2-ethylhexyl acrylate (EHA) Poly(glycidyl methacrylate) (PGMA) has easily transformable pendant oxirane group and poly(2-ethylhexyl acrylate) (PEHA) has very low Tg They are the important components of coating and adhesive materials Copolymerization of GMA and EHA was carried out in bulk and in toluene at 70 °C at different molar feed ratios using CuCl as catalyst in combination with 2,2â˛-bypyridine (bpy) as well as N,N,Nâ˛,Nâł,Nâł-pentamethyl diethylenetriamine (PMDETA) as ligand The molecular weight (Mn) and the polydispersity index (PDI) of the polymers were determined by GPC analysis The molar composition of the copolymers was determined by 1H NMR analysis The reactivity ratios of GMA (r1) and EHA (r2) were determined using Finemann-Ross and Kelen-Tudos linearization methods and those had been compared with the literature values for conventional free radical copolymerization The thermal properties of the copolymers were studied by DSC and TGA analysis Š 2009 Wiley Periodicals, Inc J Polym Sci Part A: Polym Chem 47: 6526â6533, 2009
22Â citations
TL;DR: In this article, a review describes articles and patents concerning tailoring of conducting polymers via copolymerization to acquire scientific and technological information of these copolymers including their synthesis, unique properties, and wide applications over their respective homopolymers due to their chemical structure.
21Â citations
TL;DR: Efforts to expand the monomer scope for SET-LRP in "programmed" aqueous organic biphasic systems by targeting methacrylic monomers and polymers by synthesizing polymers of different targeted molar mass as well as quasi-block AB copolymers by "in situ" chain extension at high conversion are reported.
18Â citations
TL;DR: New method for increasing the saturated dissolvability of photosensitizer PQ within polymeric media by introducing copolymerization monomer into the PQ/PMMA is reported on.
Abstract: Increasing photosensitizer concentration has been considered as an effective approach to improve the performance of holographic material. In this paper, we report on new method for increasing the saturated dissolvability of photosensitizer PQ within polymeric media by introducing copolymerization monomer into the PQ/PMMA. The photosensitizer concentration of PQ was increased from 0.7wt% to 1.3wt%, compared with the typical PQ/PMMA sample. Besides, we investigated performance of polarization holographic recordings in typical PQ/PMMA and copolymerization monomer-containing PQ/PMMA with the orthogonally polarized signal and reference waves. And the doping of THFMA component resulted in a significant improvement of diffraction intensity and photosensitivity. In addition, high-quality holographic image reconstruction was realized in our home-made material.
16Â citations
References
More filters
6,927Â citations
3,096Â citations
1,458Â citations
TL;DR: The polymerization shrinkage of a range of poly(n-alkyl methacrylates) in the range C1 to C16, some of their isomers and the polymers of cyclic and heterocyclic methacylates have been measured using densitometry to reflect the fact that the change in molar volume on polymerizing a methacRYlate ester is reasonably constant at 22 cc/mol irrespective of the geometry of the substituent group.
254Â citations
TL;DR: In this paper, atom transfer radical polymerization (ATRP) of n-butyl acrylate with the homogeneous catalyst, CuIBr/4,4â-di(5-nonyl)-2,2'bipyridine (dNbpy), in benzene, afforded well-defined poly(n- butyl acylate) with predetermined molecular weights and low polydispersities, Mw/Mn = 1.1.
Abstract: Atom transfer radical polymerization (ATRP) of n-butyl acrylate with the homogeneous catalyst, CuIBr/4,4â-di(5-nonyl)-2,2â-bipyridine (dNbpy), in benzene, afforded well-defined poly(n-butyl acrylate) with predetermined molecular weights and low polydispersities, Mw/Mn = 1.1. The number-average molecular weight, Mn (measured by GPC and MALDI-TOFMS), was close to the theoretical molecular weight, predetermined by DPn = Î[M]/[I]0. A similar polymerization in benzene using 2,2â-bipyridine (bpy) as ligand instead of dNbpy displayed poor control, yielding a polymer whose molecular weight was higher than the theoretical value and demonstrating high polydispersity (Mw/Mn = 2.4). Several solvents were subsequently employed for the polymerizations with the CuIBr/bpy catalyst system. Good control of molecular weight and polydispersity were achieved using ethylene carbonate, and in this system the observed rate of polymerization was even faster than in bulk. The rate of polymerization with the CuIBr/bpy catalyst in e...
241Â citations