Patrick Guyot - Academia.edu (original) (raw)

Papers by Patrick Guyot

Research paper thumbnail of Autonomia e redução de custo no controle do imunógeno da vacina inativada de poliomielite (IPV): teste de identidade do antígeno D

VAC 07-Autonomia e redução de custo no controle do imunógeno da vacina inativada de poliomielite ... more VAC 07-Autonomia e redução de custo no controle do imunógeno da vacina inativada de poliomielite (IPV): teste de identidade do antígeno D.

Research paper thumbnail of New bifunctional organolithium polymerization initiators and their use in particular for the production of thermoplastic elastomeric

Research paper thumbnail of New initiators polymerization bifunctional organolithium and their applications, especially for obtaining thermoplastic elastomers

Research paper thumbnail of Autonomia e redução de custo no controle do imunógeno da vacina inativada de poliomielite (IPV): teste de identidade do antígeno D

Anais do V Seminário Anual Científico e Tecnológico de Bio-Manguinhos, 2017

VAC 07-Autonomia e redução de custo no controle do imunógeno da vacina inativada de poliomielite ... more VAC 07-Autonomia e redução de custo no controle do imunógeno da vacina inativada de poliomielite (IPV): teste de identidade do antígeno D.

Research paper thumbnail of New perfectly difunctional organolithium initiators for block copolymer synthesis: 2. Difunctional polymers of dienes and of their triblocks copolymers with styrene

Polymer, 1982

Abstract New organodilithium initiators were prepared in a hydrocarbon solvent in the absence of ... more Abstract New organodilithium initiators were prepared in a hydrocarbon solvent in the absence of any polar additive. Although these initiators are insoluble when they are synthesized, they may be easily purified and reacted with dienes to give perfectly telechelic polydienes having unimodal distributions and low dispersity. A good agreement between experimental and theoretical molecular weights was observed. The polymer microstructures were similar to those of polymers initiated by butyllithium in the same solvent. Triblock thermoplastic elastomers were also prepared, the characteristics of which are given. The mechanical properties of a S.B.S. sample support also the claim of a good initiating ability and difunctionality of these initiators.

Research paper thumbnail of New perfectly difunctional organolithium initiators for block copolymer synthesis: Synthesis of dilithium initiators in the absence of polar additives

Polymer, 1981

Abstract New types of difunctional organolithium initiators have been prepared by addition of sec... more Abstract New types of difunctional organolithium initiators have been prepared by addition of sec or tert-butyl lithium on two families of non polymerizable precursors having two non-conjugated double bonds. They were made in pure hydrocarbon solvents such as n-hexane, the dilithium adducts being insoluble and easily purified by elimination of monofunctional species. However, they easily initiate the polymerization of monomers such as conjugated dienes, giving soluble and stable difunctional living polymers in the complete absence of any polar additive.

Research paper thumbnail of Les ouvrages de mathématiques dans l’histoire. Entre recherche, enseignement et culture

Llull Revista De La Sociedad Espanola De Historia De Las Ciencias Y De Las Tecnicas, 2014

Evelyne Barbin & Marc Moyon (Coords.) Collection «Savoirs scientifiques et Pratiques d’enseig... more Evelyne Barbin & Marc Moyon (Coords.) Collection «Savoirs scientifiques et Pratiques d’enseignement» Presses Universitaires de Limoges (PULIM), Limoges, 2013, 337 pp. ISBN: 2-84287-563-X, EAN: 9782842875633

Research paper thumbnail of On great mathematical challenges. From Euclid to Condorcet. Edited by Évelyne Barbin. (De grands défis mathématiques d’Euclide à Condorcet.)

Books by Patrick Guyot

Research paper thumbnail of Let History into the Mathematics Classroom

New York: Springer, 146 p., 2018

This book brings together 10 experiments which introduce historical perspectives into mathematics... more This book brings together 10 experiments which introduce historical perspectives into mathematics classrooms for 11 to 18-year-olds. The authors suggest that students should not only read ancient texts, but also should construct, draw and manipulate. The different chapters refer to ancient Greek, Indian, Chinese and Arabic mathematics as well as to contemporary mathematics. Students are introduced to well-known mathematicians—such as Gottfried Leibniz and Leonard Euler—as well as to less famous practitioners and engineers. Always, there is the attempt to associate the experiments with their scientific and cultural contexts. One of the main values of history is to show that the notions and concepts we teach were invented to solve problems. The different chapters of this collection all have, as their starting points, historic problems—mathematical or not. These are problems of exchanging and sharing, of dividing figures and volumes as well as engineers’ problems, calculations, equations and congruence. The mathematical reasoning which accompanies these actions is illustrated by the use of drawings, folding, graphical constructions and the production of machines.

Research paper thumbnail of Autonomia e redução de custo no controle do imunógeno da vacina inativada de poliomielite (IPV): teste de identidade do antígeno D

VAC 07-Autonomia e redução de custo no controle do imunógeno da vacina inativada de poliomielite ... more VAC 07-Autonomia e redução de custo no controle do imunógeno da vacina inativada de poliomielite (IPV): teste de identidade do antígeno D.

Research paper thumbnail of New bifunctional organolithium polymerization initiators and their use in particular for the production of thermoplastic elastomeric

Research paper thumbnail of New initiators polymerization bifunctional organolithium and their applications, especially for obtaining thermoplastic elastomers

Research paper thumbnail of Autonomia e redução de custo no controle do imunógeno da vacina inativada de poliomielite (IPV): teste de identidade do antígeno D

Anais do V Seminário Anual Científico e Tecnológico de Bio-Manguinhos, 2017

VAC 07-Autonomia e redução de custo no controle do imunógeno da vacina inativada de poliomielite ... more VAC 07-Autonomia e redução de custo no controle do imunógeno da vacina inativada de poliomielite (IPV): teste de identidade do antígeno D.

Research paper thumbnail of New perfectly difunctional organolithium initiators for block copolymer synthesis: 2. Difunctional polymers of dienes and of their triblocks copolymers with styrene

Polymer, 1982

Abstract New organodilithium initiators were prepared in a hydrocarbon solvent in the absence of ... more Abstract New organodilithium initiators were prepared in a hydrocarbon solvent in the absence of any polar additive. Although these initiators are insoluble when they are synthesized, they may be easily purified and reacted with dienes to give perfectly telechelic polydienes having unimodal distributions and low dispersity. A good agreement between experimental and theoretical molecular weights was observed. The polymer microstructures were similar to those of polymers initiated by butyllithium in the same solvent. Triblock thermoplastic elastomers were also prepared, the characteristics of which are given. The mechanical properties of a S.B.S. sample support also the claim of a good initiating ability and difunctionality of these initiators.

Research paper thumbnail of New perfectly difunctional organolithium initiators for block copolymer synthesis: Synthesis of dilithium initiators in the absence of polar additives

Polymer, 1981

Abstract New types of difunctional organolithium initiators have been prepared by addition of sec... more Abstract New types of difunctional organolithium initiators have been prepared by addition of sec or tert-butyl lithium on two families of non polymerizable precursors having two non-conjugated double bonds. They were made in pure hydrocarbon solvents such as n-hexane, the dilithium adducts being insoluble and easily purified by elimination of monofunctional species. However, they easily initiate the polymerization of monomers such as conjugated dienes, giving soluble and stable difunctional living polymers in the complete absence of any polar additive.

Research paper thumbnail of Les ouvrages de mathématiques dans l’histoire. Entre recherche, enseignement et culture

Llull Revista De La Sociedad Espanola De Historia De Las Ciencias Y De Las Tecnicas, 2014

Evelyne Barbin & Marc Moyon (Coords.) Collection «Savoirs scientifiques et Pratiques d’enseig... more Evelyne Barbin & Marc Moyon (Coords.) Collection «Savoirs scientifiques et Pratiques d’enseignement» Presses Universitaires de Limoges (PULIM), Limoges, 2013, 337 pp. ISBN: 2-84287-563-X, EAN: 9782842875633

Research paper thumbnail of On great mathematical challenges. From Euclid to Condorcet. Edited by Évelyne Barbin. (De grands défis mathématiques d’Euclide à Condorcet.)

Research paper thumbnail of Let History into the Mathematics Classroom

New York: Springer, 146 p., 2018

This book brings together 10 experiments which introduce historical perspectives into mathematics... more This book brings together 10 experiments which introduce historical perspectives into mathematics classrooms for 11 to 18-year-olds. The authors suggest that students should not only read ancient texts, but also should construct, draw and manipulate. The different chapters refer to ancient Greek, Indian, Chinese and Arabic mathematics as well as to contemporary mathematics. Students are introduced to well-known mathematicians—such as Gottfried Leibniz and Leonard Euler—as well as to less famous practitioners and engineers. Always, there is the attempt to associate the experiments with their scientific and cultural contexts. One of the main values of history is to show that the notions and concepts we teach were invented to solve problems. The different chapters of this collection all have, as their starting points, historic problems—mathematical or not. These are problems of exchanging and sharing, of dividing figures and volumes as well as engineers’ problems, calculations, equations and congruence. The mathematical reasoning which accompanies these actions is illustrated by the use of drawings, folding, graphical constructions and the production of machines.