Bazı Tensör Alanlarına Sahip Hemen Hemen α‐Kenmotsu Manifoldları Üzerine
Bu makalede ?? ?‐paralel tensör alanlı hemen hemen ?‐Kenmotsu manifoldların projektif, konformal
Synthesis, Characterization of Chalcone Containing Methacrylate Polymers: Investigation of Fluorescence, Thermal and Dielectric Properties
In this study, the (1‐benzofurane‐2‐yl)‐3‐oxo‐prop‐1‐en‐1‐yl]‐2‐methoxyphenyl 2‐methyl acrylate monomer were synthesized from the acylation reaction of this compound with methacryloyl chloride that commercially purchased. Free radicalic or atom transfer radical polymerization methods were used for preparation of copolymers. FT‐IR, 1H and 13C‐NMR techniques were used for structure characterization of polymers. The thermal behaviors of polymers were relatively investigated by DSC and TGA, and the results were compared with each other. The dielectric behaviors of polymers were investigated as a function of temperature and frequency. The results obtained were associated with their the structures. The spectroscopic properties of the polymers were investigated by UV‐Vis and fluorescence spectroscopies. Effects of the solvent polarity on emission measurement were investigated with fluorescence spectroscopy. Under cover of dimerization property of chalcone, the chalcone ended polymer was photodimerizatied.
___
- Kim, T. W. and Pak, H. K., 2005. Canonical
foliations of certain classes of almost contact
metric structures. Acta Math. Sinica, Eng. Ser.
Aug., 21(4), 841‐846.
- Boeckx, E. and Cho, J. T., 2005. η‐parallel contact
metric spaces. Differential Geometry and its
Applications, 22, 275‐285.
- Vaisman, I., 1980. Conformal changes of almost
contact metric manifolds. Lecture Notes in Math.,
Berlin‐Heidelberg‐New York, 792, 435‐443.
- Kenmotsu, K., 1972. A class of contact Riemannian
manifold, Tôhoku Math. Journal, 24 , 93‐103.
- Blair, D. E., 2002. Riemannian geometry of contact
and symplectic manifolds, Progress in
Mathematics, Boston.
Bagewadi, C. S. and Venkatesha, 2007. Some
curvature tensors on a trans‐Sasakian manifold,
Turkish Journal of Math., 31, 111‐121.
- Calvaruso, G. and Perrone, D., 2002. Semisymmetric
contact metric three‐manifolds,
Yokohama Math. Journal., 49, 149‐161.
- Yano, K. and Kon, M., 1984. Structures on
manifolds, Series in Pure Mathematics, 3. World
Scientific Publishing Co., Singapore.
- Aktan, N., Yıldırım M. and Murathan, C., 2014.
Almost f‐cosymplectic manifolds, Mediterranean
Journal of Math., 11, 775‐787.
- Öztürk, H., Aktan, N., Murathan, C. And Vanlı, A. T.,
2014. Almost α‐Cosymplectic f‐Manifolds, The
Journal of Alexandru Ioan Cuza University, 60 (1),
211‐226.
- Tanno, S., 1969. The automorphism groups of
almost contact Riemannian manifolds, Tôhoku
Math. Journal, 21, 21‐38.
- Nomizu, K., 1968. On hypersurfaces satisfying a
certain condition on the curvature tensor, Tôhoku
Mat. Journal, 20, 46‐69.
- Szabó, Z. I., 1982. Structure theorem on
Riemannian spaces satisfying R.R=0, Journal of
Differential Geometry, 17, 531‐582.
- Ogawa, Y., 1977. A condition for a compact
Kaehlerian space to be locally symmetric, Nat. Sci.
Rep. Ochanomizu Univ., 28, 21‐23.
- Dacko, P. and Olszak, Z., 1998. On conformally flat
almost cosymplectic manifolds with Keahlerian
leaves, Rend. Sem. Mat. Univ. Pol. Torino, 56(1), 89‐
103.
- Olszak, Z., 1989. Locally conformal almost
cosymplectic manifolds, Coll. Math. Journal, 57, 73‐
‐87.
- Dileo, G. and Pastore, A. M., 2009. Almost
Kenmotsu manifolds with a condition of η‐
parallelism. Differential Geometry and İts
Applications, 27, 671‐679.