在25℃下用浓硫酸水溶液磺化甲基苯基硫酸酯(4),得到4-磺酸。然后该初始产物分解得到苯酚-4-磺酸,随后将其磺化为苯酚-2,4-二磺酸。从在93.2%H 2 SO 4中将甲磺酸苯基酯(3)和(4)磺化所获得的一级系数,对于磺酸浓度为H 2 S 2 O 7的酸浓度,其σp +值OSO 2 Me和OSO 2已确定OMe取代基分别为0.40和0.46。2-氯苯基(10)和2-甲基苯基甲磺酸盐(14)在2.0 °C下在硝基甲烷中用2.0当量的SO 3磺化产生4-磺酸作为排他的产物,而2-甲氧基苯基甲烷磺酸盐(13),在相同条件下,仅形成5-磺酸。
METHODS OF SYNTHESIZING A POLYNUCLEOTIDE ARRAY USING PHOTOACTIVATED AGENTS
申请人:Vibrant Holdings, LLC
公开号:US20210380629A1
公开(公告)日:2021-12-09
Described herein are methods for the synthesis of DNA polynucleotides and polynucleotides, as well as methods for their deprotection and methods for the use of said compounds and compositions comprising said compounds. In particular, such compounds and compositions comprising them are used in methods for light-directed synthesis of DNA microarrays.
Conductive polymer and solid electrolytic capacitor using same
申请人:Tozawa Masaaki
公开号:US20060223976A1
公开(公告)日:2006-10-05
The conductive polymer of the present invention is prepared by means of oxidation polymerization. On the matrix of the conductive polymer, at least one organic sulfonate formed by an anion of an organic sulfonic acid and a cation of other than transition metals is coated. Alternatively, in the matrix of the conductive polymer, at least one organic sulfonate formed by an anion of an organic sulfonic acid and a cation of other than transition metals is included. The conductive polymer of the present invention is excellent in the conductivity, heat resistance and moisture resistance. By using it as a solid electrolyte, a reliable solid electrolytic capacitor can be prepared which is unlikely to decrease the properties when being kept in a hot and humid condition.
Conductive polymer and solid electrolytic capacitor using the same
申请人:Tozawa Masaaki
公开号:US20080135810A1
公开(公告)日:2008-06-12
The conductive polymer of the present invention is prepared by means of oxidation polymerization. On the matrix of the conductive polymer, at least one organic sulfonate formed by an anion of an organic sulfonic acid and a cation of other than transition metals is coated. Alternatively, in the matrix of the conductive polymer, at least one organic sulfonate formed by an anion of an organic sulfonic acid and a cation of other than transition metals is included. The conductive polymer of the present invention is excellent in the conductivity, heat resistance and moisture resistance. By using it as a solid electrolyte, a reliable solid electrolytic capacitor can be prepared which is unlikely to decrease the properties when being kept in a hot and humid condition.
CONDUCTIVE POLYMER AND SOLID ELECTROLYTIC CAPACITOR USING SAME
申请人:Tayca Corporation
公开号:EP1661931A1
公开(公告)日:2006-05-31
The conductive polymer of the present invention is prepared by means of oxidation polymerization. On the matrix of the conductive polymer, at least one organic sulfonate formed by an anion of an organic sulfonic acid and a cation of other than transition metals is coated. Alternatively, in the matrix of the conductive polymer, at least one organic sulfonate formed by an anion of an organic sulfonic acid and a cation of other than transition metals is included. The conductive polymer of the present invention is excellent in the conductivity, heat resistance and moisture resistance. By using it as a solid electrolyte, a reliable solid electrolytic capacitor can be prepared which is unlikely to decrease the properties when being kept in a hot and humid condition.
OXIDANT/DOPANT SOLUTION FOR PRODUCING CONDUCTIVE POLYMER, CONDUCTIVE POLYMER AND SOLID ELECTROLYTIC CAPACITOR
申请人:Tayca Corporation
公开号:EP2479201A1
公开(公告)日:2012-07-25
There is provided an oxidant and dopant which can produce a conductive polymer. The conductive polymer can be used in a solid electrolyte capacitor as solid electrolyte. The solid electrolyte capacitor can be provided with improved breakdown voltage and voltage resistance, as well as less generation of the defects due to leak current. There is provided an oxidant and dopant solution for conductive polymer production including an oxidant and dopant for an organic ferric sulfonate, and an alcohol with a carbon number of 1 to 4. The oxidant and dopant solution further includes a compound with a glycidyl group, or its ring-opened compound. Faborably, a polyalcohol is further added. Using the oxidant and dopant solution, a thiophene or its derivative is subject to an oxidation polymerization to prepare a conductive polymer, which can be used as solid electrolyte of a solid electrolyte capacitor.