CAS: 89-32-7; 1,2,4,5-Benzenetetracarboxylic Anhydride

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CAS号89-05-4 均苯四甲酸 | CAS号95-93-2 1,2,4,5-四甲苯 | CAS号39144-22-4 1,4-diethyl-2,5... | CAS号119-64-2 1,2,3,4-四氢萘(THN) | CAS号85-01-8 菲 | CAS号120-12-7 蒽 | CAS号5440-71-1 3,4,5,6,7, 8-He... | CAS号5325-97-3 1,2,3,4,5,6,7,8-八氢菲 | CAS号5803-67-8 2-氯-1-(5,6,7,8-... | CAS号782-27-4 2-Naphthalenebu... | CAS号19014-14-3 dimethyl 2,5-di... | CAS号23565-55-1 2,6-bis(hydroxy... | CAS号2550-73-4 均苯四甲酸二酰亚胺 | CAS号23831-53-0 6-(3-hydroxyqui... | CAS号635-10-9 1,2,4,5-四甲酸四苯甲酯 | CAS号7440-44-0 活性炭 | CAS号135989-69-4 二苯甲酮-2,4,5-三甲酸 | CAS号89-05-4 均苯四甲酸 | CAS号6862-68-6 4,6-bis(ethoxyc...

反应 4.0H,反应生成 均苯四甲酸二酐
参考文献:Thermal Stability Of Ionic Nets With Cuii Ions Coordinated To Di-2-Pyridyl Ketone: Reversible Crystal-To-Crystal Phase Transformation
标题:Thermal Stability Of Ionic Nets With Cuii Ions Coordinated To Di-2-Pyridyl Ketone: Reversible Crystal-To-Crystal Phase Transformation
摘要:Supramolecular Networks Are Crystalline Materials Based On Connections Between Metal Ions Through Organic Ligands. In This Sense,The Combination Of Polycarboxylate Anions And Dipyridyl Ligands Is An Effective Strategy To Produce Extended Structures. However,Sometimes The 3D Arrangement Results In An Ionic Network,And This Is The Case For The Novel Compounds [cu((Py)(2)C(Oh)(2))(2)](H(2)Bta) (1) And [cu((Py)(2)C(Oh)(2))(2)](Fum) (2) Where (Py)(2)C(Oh)(2) Is The Gem-Diol Of Di-2-Pyridyl Ketone ((Py)(2)Co),H(2)Bta(2-) Is The Divalent Anion Of 1,2,4,5-Benzenetetracarboxylic Acid (H(4)Bta),And Fum(2-) Is The Divalent Anion Of Fumaric Acid (Butenedioic Acid). Both Compounds Were Synthesized And Structurally Characterized By Means Of Single Crystal X-Ray Diffraction And Ir Spectroscopy. The Thermal Behavior Of Both Compounds Was Analyzed Through Tg/dta And Tdx,Concluding That The Thermal Stability Is Influenced By The Dehydration Of The Coordinated Molecules And Counter-Anions. Additionally,C-13 NMR Measurements Were Performed To Analyze The Reversible Crystal-To-Crystal Phase Transformation Observed For 1. (C) 2015 Elsevier Ltd. All Rights Reserved.
DOI:10.1016/j.Poly.2015.03.022

专利信息

专利号:US-5359016-A
优先权日:1993-03-29
标 题 :Process for the synthesis of styrene-isoprene rubber
发明人：HSU WEN-LIANG; HALASA ADEL F; MATRANA BARRY A
权利人:GOODYEAR TIRE & RUBBER
摘要:The subject invention relates to a technique for synthesizing rubbery copolymers of styrene and isoprene. These rubbery copolymers exhibit an excellent combination of properties for utilization in tire tread rubber compounds. By utilizing these styrene-isoprene rubbers in tire treads, tires having improved wet skid resistance can be built without sacrificing rolling resistance or tread wear characteristics. This invention more specifically discloses a process for the synthesis of styrene-isoprene rubbers which comprises copolymerizing isoprene monomer and styrene monomer in an organic solvent in the presence of a catalyst system which is comprised of (a) a lithium initiator and (b) an alkyl tetrahydrofurfuryl ether modifier, wherein the molar ratio of the modifier to the lithitium initiator is within the range of 2:1 to 40:1. The subject invention further discloses a process for the synthesis of styrene-isoprene rubbers which comprises copolymerizing isoprene monomer and styrene monomer in an organic solvent in the presence of a catalyst system which is comprised of (a) a lithium initiator and (b) 2,2-ditetrahydrofurylpropane as a modifier, wherein the molar ratio of the modifier to the lithium initiator is within the range of 1:1 to 40:1.

专利号:US-2008146772-A1
优先权日:2006-11-02
标题 :Materials and methods for co-crystal controlled solid-state synthesis of imides and imines
发明人：ZAWOROTKO MICHAEL J; CHENEY MIRANDA L
权利人:UNIV SOUTH FLORIDA
摘要:The subject invention pertains to methods for solid-state synthesis of imides and imines using co-crystals. The co-crystal formers utilized are substrates of condensation reactions and co-crystals can be obtained in high yield via methods such as slurrying, solvent evaporation, solvent crystallization, treatment with supercritical fluid(s), melting plus crystallization, slurry conversion, grinding of solids, blending of powders, heating of solids, solvent-drop grinding, or grinding plus melting.

专利号:WO-2024208875-A1
优先权日:2023-04-03
标题:Organic reinforcement of a polyamide with the in situ synthesis of a polyimide phase by reactive extrusion
发明人：CASSAGNAU PHILIPPE; DELAGE KARIM; BOUNOR-LEGARE VÉRONIQUE; MARESTIN CATHERINE; DUBOIS CHARLOTTE; GAROIS NICOLAS
权利人:TOTALENERGIES ONETECH; UNIV CLAUDE BERNARD LYON 1 UCBL; CENTRE NAT RECH SCIENT; UNIV JEAN MONNET SAINT ETIENNE UJM; INSTITUT NAT DES SCIENCES APPLIQUEES DE LYON INSA LYON
摘要:The disclosure relates to a reinforced polyamide and to a process to produce a reinforced polyamide comprising providing components being one or more polyamides, one or more dianhydrides, and one or more diamines; wherein the one or more polyamides are provided at a content of at least 60 wt.% based on the total weight of the components and wherein the one or more polyamides comprise at least one polyamide having amide groups separated by at least 10 CH2 groups; performing in situ synthesis of a polyimide by reactive extrusion of the components wherein the residence time is less than 10 minutes; and recovering a polyamide-polyimide blend being a reinforced polyamide comprising a continuous polyamide phase and a polyimide dispersed phase.

专利号:WO-2024170663-A1
优先权日:2023-02-15
标 题:Organic reinforcement of an elastomer with the in situ synthesis of a polyimide phase by reactive extrusion
发明人：CASSAGNAU PHILIPPE; DELAGE KARIM; BOUNOR-LEGARE VÉRONIQUE; MARESTIN CATHERINE; DUBOIS CHARLOTTE; GAROIS NICOLAS
权利人:TOTALENERGIES ONETECH; UNIV CLAUDE BERNARD LYON 1 UCBL; CENTRE NAT RECH SCIENT; UNIV JEAN MONNET SAINT ETIENNE; INSTITUT NAT DES SCIENCES APPLIQUEES DE LYON INSA LYON
摘要:The present disclosure relates to a process to produce a reinforced elastomeric material and to the reinforced elastomeric material. The process comprises the steps of providing components comprising a grafted elastomer, one or more dianhydrides, and one or more diamines; wherein the grafted elastomer is provided at a content of at least 60 wt.% based on the total weight of the components; performing in situ synthesis of a polyimide phase in the grafted elastomer by reactive extrusion of the components in a twin-screw extruder comprising main hopper wherein the screw profile comprises two or more reverse conveying elements forming two or more hot zones to form an elastomer-polyimide blend; and recovering said elastomer-polyimide blend being a reinforced elastomeric material.

专利号:WO-2024208876-A1
优先权日:2023-04-03
标题 :Ductile polyamide with the in situ synthesis of a polyimide phase by reactive extrusion
发明人：CASSAGNAU PHILIPPE; DELAGE KARIM; BOUNOR-LEGARE VÉRONIQUE; MARESTIN CATHERINE; DUBOIS CHARLOTTE; GAROIS NICOLAS
权利人:TOTALENERGIES ONETECH; UNIV CLAUDE BERNARD LYON 1 UCBL; CENTRE NAT RECH SCIENT; UNIV JEAN MONNET SAINT ETIENNE UJM; INSTITUT NAT DES SCIENCES APPLIQUEES DE LYON INSA LYON
摘要:The disclosure relates to a ductile polyamide and to a process to produce a ductile polyamide comprising providing components comprising one or more polyamides, one or more dianhydrides, and one or more diamines; wherein the one or more polyamides are provided at a content of at least 60 wt.% based on the total weight of the components; and wherein the one or more polyamides comprise at least one polyamide having amide groups separated by less than 10 carbon atoms; performing in situ synthesis of a polyimide by reactive extrusion of the components wherein the residence time is less than 10 minutes; and recovering a polyamide-polyimide blend being a ductile polyamide comprising a continuous polyamide phase and a dispersed polyimide phase.

专利号:WO-2024140771-A1
优先权日:2022-12-30
标 题 :Catalyst for synthesis of polyimide, preparation method therefor and use thereof
发明人：DUAN PINGPING; HE JUNPENG; DING MINGYUE; WU HONGSHENG
权利人:BYD CO LTD
摘要:A catalyst for synthesis of polyimide. The structural formula of the catalyst is as shown in formula (I), wherein Ar 1 and Ar 2 are independently selected from a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic aryl group, and R 1 is oxygen, sulfur, a sulfone group, a sulfoxide group, a carbonyl group, a secondary amine group, an alkylene group, an alkenylene group, an alkynylene group, an alicyclic group, a heterocycloarylene group, a fused ring arylene group, or a single bond.