CAS: 1823-59-2; 5,5'-Oxybis(Isobenzofuran-1,3-Dione)

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CAS号118-45-6 4-氯代苯酐 | CAS号584-08-7 碳酸钾 | CAS号101-02-0 亚磷酸三苯酯 | CAS号2751-90-8 四苯基溴化磷 | CAS号74-11-3 对氯苯甲酸 | CAS号319-03-9 4-氟邻苯二甲酸酐 | CAS号7717-76-2 4,4'-氧基双邻苯二甲酸 | CAS号120-82-1 1,2,4-三氯苯 | CAS号5466-84-2 4-硝基邻苯二甲酸酐 | CAS号89-20-3 4-氯邻苯二酸 | CAS号7717-76-2 4,4'-氧基双邻苯二甲酸

二(3,4-二羧基苯基)醚置于2,6-双[(2,2,6,6-四甲基-1-哌啶基)甲基]苯硼酸体系中,用 丁腈 用作溶剂,化学反应 12.0H,以90%的收率获得4,4'-氧双邻苯二甲酸酐
参考文献:布朗斯台德碱辅助硼酸催化二羧酸脱水分子内缩合
标题:布朗斯台德碱辅助硼酸催化二羧酸脱水分子内缩合
摘要:描述了布朗斯台德碱辅助硼酸催化羧酸的脱水自缩合反应.在2,6-位带有大的(n,N-二烷基氨基)甲基的芳基硼酸可以催化二羧酸和四羧酸的分子内脱水缩合.这是羧酸催化脱水自缩合的第一个成功方法.
Doi:10.1021/ol102926N

专利信息

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-2024246574-A1
优先权日:2023-06-02
标题:METHOD OF SYNTHESIS OF COLLOIDAL InSb QUANTUM DOTS
发明人：REISS PETER; KWON YONGJU
权利人:COMMISSARIAT A LENERGIE ATOMATIQUE ET AUX ENERGIES ALTERNATIVES; CENTRE NAT RECH SCIENT; UNIV GRENOBLE ALPES
摘要:The present invention relates to a method of synthesis of colloidal InSb quantum dots (InSb QDs) comprising a premixing step of In and Sb precursors at a temperature of less than 100°C, under stirring.

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:US-5003078-A
优先权日:1989-05-16
标 题:Synthesis of phthalonitrile resins containing ether and imide linkages
发明人：KELLER TEDDY M
权利人:US NAVY
摘要:Imide-containing phthalonitrile monomers are prepared from a phthalonitrile and an aromatic dianhydride. The monomer and a method for preparing the monomer is disclosed. These monomers are synthesized into heat resistant polymers and copolymers with aromatic ring structure incorporating imide and ether linkages. The synthesis of the high temperature thermosetting polymers and copolymers is also disclosed.

专利号:US-5292854-A
优先权日:1989-05-16
标题 :Synthesis of phthalonitrile resins containing ether and imide linkages with aromatic diamine curing agent
发明人：KELLER TEDDY M
权利人:US ARMY
摘要:Imide-containing phthalonitrile monomers are prepared from a phthalonitrile and an aromatic dianhydride. The monomer and a method for preparing the monomer is disclosed. These monomers are synthesized into heat resistant polymers and copolymers with aromatic ring structure incorporating imide and ether linkages. The synthesis of the high temperature thermosetting polymers and copolymers is also disclosed.