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Dive into the research topics where Georges Lucotte is active.

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Featured researches published by Georges Lucotte.


Polymer Bulletin | 1991

1,2-bis(3-propargyloxyphenoxy)ethane

Georges Lucotte; Bruno Delfort

Summary1,2-Bis(3-propargyloxyphenoxy)ethane was prepared by phase transfert catalyzed etherification. This monomer exhibits a maximum of the exotherm of polymerization at 280°C. When the reaction was initiated by cupric chloride and by cupric sulfate this temperature respectively shifted to 186°C and 217°C. Conversion of the propargyl group was followed by DSC at different temperatures and increased significantly in the presence of cupric catalysts.


Polymer Bulletin | 1990

Ethynyl terminated ethers. Synthesis and thermal characterization of 2,2 bis (ethynyl-4-phenylcarbonyl-4-phenoxy-4-phenyl) propane and 2,2 bis (ethynyl-4-phenylsulfonyl-4-phenoxy-4-phenyl) propane

Georges Lucotte; Laurent Cormier; Bruno Delfort

SummaryTwo ethynyl end-capped ethers 2,2 Bis [ethynyl-4-phenylsulfonyl-4-phenoxy-4-phenyl] propane and 2,2 Bis [ethynyl-4-phenylcarbonyl-4-phenoxy-4-phenyl] propane have been prepared by a three steps synthesis each. They exhibit melting point followed by the thermal polymerisation of the ethynyl groups in the 200–250°C range. Curing lead to thermoset materials where Tg are respectively of 240°C and not detectable.


Polymer Bulletin | 1991

1,3-bis(4-ethynylbenzoyl)benzene

Georges Lucotte; Bruno Delfort

Summary1,3-Bis(4-ethynylbenzoyl)benzene was prepared in a three steps synthesis. This compound exhibits a maximum of the exotherm of polymerization at 222°C. This temperature schifted to 198°C in presence of dicumul peroxide. The polymerization was followed by DSC analysis and was found to be faster when it was initiated by peroxide.


Polymer Bulletin | 1991

Poly(arylene ether sulfones) and poly(arylene ether ketones) derived from dibenzofuran

Laurent Cormier; Georges Lucotte; Bruno Delfort

SummaryNew polyarylene ether ketones and polyarylene ether sulfones were prepared by polycondensation of various bisphenols with two new dihalide monomers including dibenzofuran structure, respectively 3,6 bis (4-fluorophenylcarbonyl) dibenzofuran and 3,6 bis (4-fluorophenylsulfonyl) dibenzofuran. Most of these thermoplastic polyethers are soluble in NMP and in chlorinated soluents. They exhibit Tgs up to 234°C for the polyetherketones and up to 262°C for the polysulfones, so over 50°C higher than the Tgs of classical available polyethers.


Journal of Polymer Science Part A | 1990

Ethynyl-terminated polyethers from new end-capping agents: Synthesis and characterization

Bruno Delfort; Georges Lucotte; Laurent Cormier


Journal of Polymer Science Part A | 1991

Ethynyl‐terminated polyethers from new end‐capping agents. II. End‐chain functionalization through nitro displacement

Georges Lucotte; Laurent Cormier; Bruno Delfort


Archive | 1990

Acetylene derivatives, their preparation process, new acetylene polymers and their uses

Delfort Bruno; Georges Lucotte; Laurent Cormier


Archive | 1986

Polymerizable compositions producing polymers having good thermal properties, methods for obtaining them and applications thereof

Bruno Delfort; Georges Lucotte


Polymer Bulletin | 1991

1,2-BIS(3-PROPARGYLOXYPHENOXY)ETHANE : SYNTHESIS AND POLYMERIZATION

Georges Lucotte; Bruno Delfort


Archive | 1991

Acetylene derivatives, method of making them, acetylenic polymers and their applications.

Bruno Delfort; Georges Lucotte; Laurent Cormier

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