Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Tzvetanka Philipova"'
Publikováno v:
Dyes and Pigments. 53:219-227
Ground and excited state deprotonation and protonation p K a values of anthraquinones with amino, hydroxy and chloro substituents were determined by means of spectrophotometric titrations and Forster cycle calculations. In the mixed amino-hydroxy 9,1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::860468c8a20b25d3240a0b5bd6995514
https://doi.org/10.1016/s0143-7208(02)00016-5
https://doi.org/10.1016/s0143-7208(02)00016-5
Autor:
Ivo Grabchev, Tzvetanka Philipova
Publikováno v:
Dyes and Pigments. 44:175-180
The study presents the photophysical and photochemical characteristics in aqueous solution of some triazine–stilbene fluorescent brighteners containing 2-hydroxyethylamino groups and their trans–cis isomers in equilibrium. It has been established
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d247646484ec613fa94b59a0ac5de16
https://doi.org/10.1016/s0143-7208(99)00088-1
https://doi.org/10.1016/s0143-7208(99)00088-1
Autor:
Ivo Grabchev, Tzvetanka Philipova
Publikováno v:
Designed Monomers and Polymers. 3:479-488
The radical polymerization of acrylonitrile in the presence of two unsaturated fluorescent brighteners (4-methoxy-1,8-naphthalimide derivatives) in N,N-dimethyl formamide solution has been investigated. The effect of the brightners on the polymerizat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e91b8a32cdad5bfb84b3c062f336973
https://doi.org/10.1163/156855500750206320
https://doi.org/10.1163/156855500750206320
Autor:
Tzvetanka Philipova, Ivo Grabchev
Publikováno v:
ResearcherID
The radical polymerization of styrene in the presence of six fluorescent brighteners (FB), derivatives of 4,4'-bis(1,3,5-triazin-2-ylamino)-stilbene-2,2-disulfonic acid comprising polymerizable groups, has been studied. By means of UV-Vis and FT-IR s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8b47df77295efb9e42a58cb654f7a9a
https://doi.org/10.1002/(sici)1522-9505(19981215)263:1<1::aid-apmc1>3.0.co
https://doi.org/10.1002/(sici)1522-9505(19981215)263:1<1::aid-apmc1>3.0.co
Autor:
Tzvetanka Philipova
Publikováno v:
Journal f�r Praktische Chemie/Chemiker-Zeitung. 336:587-590
The naphthalimide derivatives (2a–g, 3a–e) were synthesized from 1,8-naphthalic carboximides. They show green fluorescence, and are suitable for dyenig of textile materials and epoxy resins. The colour parameters of the dyed fabrics were measured
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16d6398a9f33c46997f6048601c60ebe
https://doi.org/10.1002/prac.19943360705
https://doi.org/10.1002/prac.19943360705
Autor:
Ivo Grabchev, Tzvetanka Philipova
Publikováno v:
ResearcherID
The copolymerization of acrylonitrile with two polymerizable fluorescent naphthalimide dyes has been investigated. It was found that the monomeric dyes took part in the polymerization and 94-96% of initially I wt.-% (relative to acrylonitrile) were c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12ae459fbc9235cc28d8ef07d2db3d22
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000082897300008&KeyUID=WOS:000082897300008
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000082897300008&KeyUID=WOS:000082897300008
Autor:
Bani Ali, Elahe1 (AUTHOR), Kazemi, Masoud1 (AUTHOR) semakazata@gmail.com, Ali Ghasemzadeh, Mohammad1 (AUTHOR) semakazata@gmail.com
Publikováno v:
Polycyclic Aromatic Compounds. 2020, Vol. 40 Issue 5, p1595-1605. 11p.
Autor:
Grabchev, Ivo, Philipova, Tzvetanka
Publikováno v:
Designed Monomers & Polymers. 2000, Vol. 3 Issue 4, p479-488. 10p. 2 Diagrams, 5 Graphs.
Autor:
Philipova, Tzvetanka
Publikováno v:
Journal für Praktische Chemie / Chemiker‐Zeitung; 1994, Vol. 336 Issue 7, p587-590, 4p