Synthesis, properties and photolysis of new iodonium tetrakis(pentafluorophenyl)gallate photoinitiators and comparison with their indate and aluminate analogs
摘要:
A series of new iodonium tetrakis (pentafluorophenyl) gallates were synthesized in high yield via an improved preparation of the lithium gallate, their photoproducts analyzed by UV, F-19 NMR and GC-MS spectra and a photolysis mechanism postulated. The stability of these photoinitiators was also compared with their borate, aluminate and indate analogs. (C) 2002 Published by Elsevier Science Ltd.
The heat- or energy ray-curable composition for members contains an onium gallate salt having a specific structure. The invention is a heat- or energy ray-curable composition comprising a cationic polymerizable compound and an acid generator containing an onium gallate salt represented by general formula (1). In formula (1), R
1
-R
4
are each independently an alkyl group having 1 to 18 carbon atoms or Ar; however, at least one is Ar; Ar is an aryl group having 6 to 14 carbon atoms (not including the number of carbon atoms in the following substituents); some of the hydrogen atoms in the aryl group may be substituted by alkyl groups having 1 to 18 carbon atoms or the like; E represents an element of valence n of group 15 to group 17 (IUPAC notation); n is an integer of 1-3; and R
5
is an organic group bonded to E.
[EN] COMPOUND, COATING COMPOSITION COMPRISING SAME, ORGANIC LIGHT-EMITTING DEVICE USING SAME, AND MANUFACTURING METHOD THEREFOR<br/>[FR] COMPOSÉ, COMPOSITION DE REVÊTEMENT LE COMPRENANT, DISPOSITIF ÉLECTROLUMINESCENT ORGANIQUE L'UTILISANT ET PROCÉDÉ DE FABRICATION ASSOCIÉ<br/>[KO] 화합물, 이를 포함하는 코팅 조성물, 이를 이용한 유기 발광 소자 및 이의 제조방법
申请人:LG CHEMICAL LTD
公开号:WO2022203454A1
公开(公告)日:2022-09-29
본 명세서는 화학식 1로 표시되는 화합물, 상기 화학식 1로 표시되는 화합물을 포함하는 코팅 조성물, 이를 이용한 유기 발광 소자 및 이의 제조 방법에 관한 것이다.
Studies of Weakly Coordinating Anions Paired with Iodonium Cations
作者:Kangtai Ren、John H. Malpert、Huiying Li、Haiyan Gu、Douglas C. Neckers
DOI:10.1021/ma010823o
日期:2002.2.1
Several new iodonium salts containing weakly coordinating anions were synthesized and characterized. Upon UV irradiation, the rates of photoacid generation in acetonitrile and their preliminary activity in the photopolymerization of epoxy silicones were compared. Studies showed those salts to be excellent photoacid generators. The anions [(C6F5)(3)B-C3H3N2-B(C6F5)(3)](-), B(C6F5)(4)(-), and Ga(C6F5)(4)(-) were more active and the compounds made from them more soluble in most solvents. The [(C6F5)(3)B-C6F4-B(C6F5)(3)](2-) anion was less active, and the compounds made from them were less soluble than compounds made from the three aforementioned anions. Compounds containing hexabromocarborane anion were quite similar to compounds containing SbF6- in both photoactivity and solubility.