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1D and 2D NMR studies of N-vinylcarbazole/butyl methacrylate copolymers
(2003)
Copolymers containing N-vinylcarbazole (V) and butyl methacrylate (B) units of different compositions were synthesized and their compositions were determined from quantitative 13C{1H} NMR spectroscopy. The reactivity ratios ...
Structural investigations of poly(methyl methacrylate) by two-dimensional NMR
(2004)
In the present paper a comprehensive microstructure analysis of PMMA based on the combination of one-dimensional and two-dimensional (TOCSY, HSQC, and HMBC) NMR experiments is reported. To resolve complex resonance ...
Microstructure determination of N-vinylcarbazole/vinyl acetate copolymers by one- and two-dimensional NMR spectroscopy
(2002)
The copolymers of N-vinylcarbazole/vinyl acetate (V/A) of different compositions were prepared by solution polymerization using AIBN as an initiator. The copolymer composition was determined from quantitative 13C{1H} NMR ...
Microstructure elucidation of poly(9-ethyl-3-hydroxymethylcarbazolyl methacrylate) using two-dimensional NMR spectroscopy
(2005)
The configurational assignments of poly(9-ethyl-3-hydroxymethylcarbazolyl methacrylate) prepared by solution polymerization with 2,2′- zobisisobutyronitrile (AIBN) as free radical initiator were studied by combination of ...
N-vinyl-2-pyrrolidone and methacrylonitrile copolymers: nuclear magnetic resonance characterization
(2003)
The copolymers of N-vinyl-2-pyrrolidone and methacrylonitrile (V/N) were prepared by free radical bulk polymerisation. The copolymer composition was determined from the quantitative 13C{1H} NMR spectrum. The reactivity ...
Synthesis of polysilanes bearing pendant carbosilyl groups and 29Si-NMR probe on the tacticity using side chain silicon atoms
(2002)
New functional polysilanes [R2R1Si(CH2)2SiH]n (R=Me, R1=H (1); R=R1=Et (2); R=Me, R1=Ph (3)) bearing carbosilyl side chains have been synthesized by catalytic dehydropolymerization of precursor carbosilanes R2R1SiCH2CH2SiH3 ...
One- and two-dimensional NMR studies on the compositional sequence and the microstructure of trans-4- methacryloyloxyazobenzene/styrene copolymers
(2001)
trans-4-Methacryloyloxyazobenzene/styrene (M/S) copolymers of different monomer concentrations were prepared by solution polymerization using benzoyl peroxide as initiator. The copolymer composition was determined from the ...
Effect of annealing temperature on microstructure of chemically deposited calcium modified lead titanate thin films
(2004)
Thin ferroelectric films of calcium modified lead titanate Pb1−xCaxTiO3(PCT) have been prepared by chemical deposition process. The as deposited amorphous films were thermally treated for crystallization and formation of ...
Frequency variation of initial permeability of NiZn ferrites prepared by the citrate precursor method
(2000)
Ni-1-xZnxFe2O4 with x=0.2,0.35,0.5 and 0.6 have been prepared by the citrate precursor method. The complex initial permeability has been studied as a function of the composition and sintering temperature. Preparation by ...
Magnetic properties of nickel-zinc ferrites prepared by the citrate precursor method
(2000)
Magnetic properties such as Curie temperature, saturation magnetisation, hysteresis loop and permeability loss factor
of various compositions of NiZn ferrites prepared by the non-conventional citrate precursor method are ...