Design of Waterborne Isocyanate -free Poly (Hydroxy Urethane)s- Poly (Butyl Methacrilate) Hybrids via Miniemulsion and Properties of the Cast Films.

252 p.The objective of this thesis consists in the development of waterborne hybrid polymers composed of vegetable oil-based poly(hydroxy urethane) PHU and poly(butyl methacrylate) polyBMA. To do so, the design of fatty-acid based bis-cyclic carbonates, as well as their behavior in the bulk polymerization with fatty-acid based diamines was firstly studied. The bis-cyclic carbonate structure was found to influence the microstructure of the formed poly(hydroxy urethane)s as well as the properties of the resulting poly(hydroxy urethane)s. Secondly, the design of waterborne PHU-PolyBMA polymer-polymer hybrids was performed using a miniemulsion process. Both non-crosslinked and crosslinked formulations were developed and compared with respect to kinetics, particle morphology, film formation ability and film morphology. On the one hand, in the case of non-crosslinked hybrids, the ratio between the PHU and the acrylic phase was found to have a strong impact onto the film casting ability as well as the extent of phase segregation. On the other hand, the influence of grafting was analyzed and it was shown to be a potential solution towards the formation of more homogeneous films, exhibiting tunable mechanical properties

Design of Waterborne Isocyanate -free Poly (Hydroxy Urethane)s- Poly (Butyl Methacrilate) Hybrids via Miniemulsion and Properties of the Cast Films.

252 p.The objective of this thesis consists in the development of waterborne hybrid polymers composed of vegetable oil-based poly(hydroxy urethane) PHU and poly(butyl methacrylate) polyBMA. To do so, the design of fatty-acid based bis-cyclic carbonates, as well as their behavior in the bulk polymerization with fatty-acid based diamines was firstly studied. The bis-cyclic carbonate structure was found to influence the microstructure of the formed poly(hydroxy urethane)s as well as the properties of the resulting poly(hydroxy urethane)s. Secondly, the design of waterborne PHU-PolyBMA polymer-polymer hybrids was performed using a miniemulsion process. Both non-crosslinked and crosslinked formulations were developed and compared with respect to kinetics, particle morphology, film formation ability and film morphology. On the one hand, in the case of non-crosslinked hybrids, the ratio between the PHU and the acrylic phase was found to have a strong impact onto the film casting ability as well as the extent of phase segregation. On the other hand, the influence of grafting was analyzed and it was shown to be a potential solution towards the formation of more homogeneous films, exhibiting tunable mechanical properties

Design of Waterborne Isocyanate-free Poly(Hydroxy Urethane)s – Poly(Butyl Methacrylate) Hybrids via Miniemulsion and Properties of the Cast Films

L’objectif de cette these consiste au développement de polymères hybrides en dispersion aqueuse composés de poly(hydroxy uréthane)s – PHUs – issus d’huile végétale, et de poly(méthacrylate de butyle) – PolyBMA. La synthèse de bis-carbonates cycliques issus d’acides gras, ainsi que leur comportement en polymérisation en masse avec des diamines également issues d’acides gras, ont été étudiés dans un premier temps. Il a été montré que la structure du bis-carbonate cyclique influence la microstructure du poly(hydroxy uréthane) formé ainsi que les propriétés des poly(hydroxy uréthane)s résultants. Dans un second temps, la conception de dispersions aqueuses d’hybrides polymère-polymère PHU-PolyBMA a été réalisée via l’utilisation d’un procédé de miniémulsion. Des formulations à la fois non-réticulées et réticulées ont été développées et comparées en termes de cinétique, morphologie des particles, capacité à former des films et morphologie des films. D’une part, dans le cas des hybrides non-réticulés, il a été trouvé que le ratio entre le PHU et la phase acrylique jouait un rôle important dans la possibilité de former des films ainsi que la tendance à la ségrégation de phase. D’autre part, l’influence de la réticulation a été analysée et il a été montré qu’elle pouvait être une solution potentielle pour la conception de films plus homogènes, aux propriétés mécaniques modulables.The objective of this thesis consists in the development of waterborne hybrid polymers composed of vegetable oil-based poly(hydroxy urethane) – PHU – and poly(butyl methacrylate) – polyBMA. To do so, the design of fatty-acid based bis-cyclic carbonates, as well as their behavior in the bulk polymerization with fatty-acid based diamines was firstly studied. The bis-cyclic carbonate structure was found to influence the microstructure of the formed poly(hydroxy urethane)s as well as the properties of the resulting poly(hydroxy urethane)s. Secondly, the design of waterborne PHU-PolyBMA polymer-polymer hybrids was performed using a miniemulsion process. Both non-crosslinked and crosslinked formulations were developed and compared with respect to kinetics, particle morphology, film formation ability and film morphology. On the one hand, in the case of non-crosslinked hybrids, the ratio between the PHU and the acrylic phase was found to have a strong impact onto the film casting ability as well as the extent of phase segregation. On the other hand, the influence of grafting was analyzed and it was shown to be a potential solution towards the formation of more homogeneous films, exhibiting tunable mechanical properties

Conception d’Hybrides Poly(Hydroxy Uréthane)s sans Isocyanate – Poly(Méthacrylate de Butyle) en Mini-émulsion et Propriétés des Films Résultants

The objective of this thesis consists in the development of waterborne hybrid polymers composed of vegetable oil-based poly(hydroxy urethane) – PHU – and poly(butyl methacrylate) – polyBMA. To do so, the design of fatty-acid based bis-cyclic carbonates, as well as their behavior in the bulk polymerization with fatty-acid based diamines was firstly studied. The bis-cyclic carbonate structure was found to influence the microstructure of the formed poly(hydroxy urethane)s as well as the properties of the resulting poly(hydroxy urethane)s. Secondly, the design of waterborne PHU-PolyBMA polymer-polymer hybrids was performed using a miniemulsion process. Both non-crosslinked and crosslinked formulations were developed and compared with respect to kinetics, particle morphology, film formation ability and film morphology. On the one hand, in the case of non-crosslinked hybrids, the ratio between the PHU and the acrylic phase was found to have a strong impact onto the film casting ability as well as the extent of phase segregation. On the other hand, the influence of grafting was analyzed and it was shown to be a potential solution towards the formation of more homogeneous films, exhibiting tunable mechanical properties.L’objectif de cette these consiste au développement de polymères hybrides en dispersion aqueuse composés de poly(hydroxy uréthane)s – PHUs – issus d’huile végétale, et de poly(méthacrylate de butyle) – PolyBMA. La synthèse de bis-carbonates cycliques issus d’acides gras, ainsi que leur comportement en polymérisation en masse avec des diamines également issues d’acides gras, ont été étudiés dans un premier temps. Il a été montré que la structure du bis-carbonate cyclique influence la microstructure du poly(hydroxy uréthane) formé ainsi que les propriétés des poly(hydroxy uréthane)s résultants. Dans un second temps, la conception de dispersions aqueuses d’hybrides polymère-polymère PHU-PolyBMA a été réalisée via l’utilisation d’un procédé de miniémulsion. Des formulations à la fois non-réticulées et réticulées ont été développées et comparées en termes de cinétique, morphologie des particles, capacité à former des films et morphologie des films. D’une part, dans le cas des hybrides non-réticulés, il a été trouvé que le ratio entre le PHU et la phase acrylique jouait un rôle important dans la possibilité de former des films ainsi que la tendance à la ségrégation de phase. D’autre part, l’influence de la réticulation a été analysée et il a été montré qu’elle pouvait être une solution potentielle pour la conception de films plus homogènes, aux propriétés mécaniques modulables

Water-based Non-Isocyanate Polyurethanes-Polyureas (NIPUUs)

Non-isocyanate polyurethane-ureas (NIPUUs) are a greener alternative to the traditional isocyanate-based polyurethane-ureas. These materials are synthesized by transurethanization and aminolysis of cyclic carbonate, commonly performed in solvents and in bulk. For several reasons including scalability, properties and environmental impact, there is a growing interest in developing water-based NPUUs. This review aims at discussing the achievements and the remaining challenges in the development of water-soluble NIPUUs, NIPUUs-based hydrogels as well as water-borne NIPUU dispersions

VOC-free Synthesis of Waterborne Poly(hydroxy urethane)-(meth)Acrylics Hybrids by Miniemulsion Polymerization

A VOC-free method for the synthesis of Poly(hydroxyurethane)-(meth)acrylic waterborne hybrid dispersions was developed. Poly(hydroxyurethane)s (PHU) synthesized by bulk aminolysis of cyclic-carbonate derivatives using bio-sourced vegetable oil-based diamines was dissolved in (meth)acrylate monomers, the solution dispersed in water and polymerized in miniemulsion. Hybrid particles exhibiting core-shell morphology with the PHU in the shell were obtained. The performance of the 2 coating cast from these dispersions was studied, finding that by simply varying the PHU content and the casting conditions, widely different mechanical properties of PHU-(meth)acrylic hybrids could be obtained. The versatility of the synthetic method that is not limited to the type of (meth)acrylic monomers, opens the way for obtaining a broad range of environmentally friendly VOC and isocyanate free waterborne urethane-acrylic coatings and adhesives

Sinfonía en do ; El mandarín maravilloso ; La fuente de Bakhchissarai ; Corazón de mazapán

De cada obra s'ha digitalitzat un programa sencer. De la resta s'han digitalitzat les parts que són diferents.Direcció: Dusan Miladinovic, Angel SurevEmpresa: Juan A. Pamia

Temporada coreogràfica 1983-84

Programa de la temporada coreogràfica 1983-1984, que va tenir lloc de l'11 al 23 d'octubre i en la qual van actuar el Ballet de les estrelles del Bolshoi i el Cos de ball de l'Òpera d'Odessa. Van interpretar "Anna Karènina" amb música de R. Schedrin, "Giselle" amb música d'A. Adams i coreografia de P. K. Pettipa, "Chopiniana", amb música de F. Chopin i coreografia de M. Fokine, "La bella dorment del bosc", amb música de P. I. Txaikovski, "Primavera", amb música de S. Rakhmaninov , "La mort de la rosa", amb música de G. Mahler, "Flames de París", amb música d'Asaiev, "Paquita" amb música de L. Minkus, "La noia capritxosa" amb música de Gertelli, "La mort del cigne" amb coreografia de M. Fokine, "El llac dels cignes" amb música de P. I. Txaikovski, "Grand pass de "Don Quixot"" i "Carmen", amb coreografia d'A. Alonso. La música que els acompanyava era un enregistrament de l'Orquestra Simfònica del Teatre Bolshoi de MoscouEnregistrament de l'Orquestra Simfònica del Teatre Bolshoi de Mosco