Synthesis and characterization of copolymers with 1,3-oxazolic pendant groups
Chemical modification of inexpensive commercial polymers, such as polyacrylamide (PAM), is a safe methodology to obtain new copolymers. These new materials possess properties quite different from their precursors. In this case, we synthesized copolymers containing 1,3-oxazolic pendant groups. Molecu...
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2008
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13815148_v68_n1_p233_Vega http://hdl.handle.net/20.500.12110/paper_13815148_v68_n1_p233_Vega |
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paper:paper_13815148_v68_n1_p233_Vega2023-06-08T16:12:25Z Synthesis and characterization of copolymers with 1,3-oxazolic pendant groups Vega, Isabel Natalia D'Accorso, Norma Beatriz 1,3-Oxazolic pendant groups Chemical modification Fracture fluid Temporary polymer plug Chemical modification Molecular structure Nuclear magnetic resonance Polyacrylates Rheology Synthesis (chemical) Thermodynamic properties Fracture fluid Pendant groups Sinusoidal deformations Temporary polymer plug Copolymers Chemical modification of inexpensive commercial polymers, such as polyacrylamide (PAM), is a safe methodology to obtain new copolymers. These new materials possess properties quite different from their precursors. In this case, we synthesized copolymers containing 1,3-oxazolic pendant groups. Molecular structures were confirmed by IR and 13C NMR. Conversion yields were calculated by means of elemental analysis. Thermal properties were studied by TGA and DSC techniques. The dependence of viscosity with conversion degrees was also analyzed. Amide-5-phenyl-1,3-oxazole copolymer (APOC) of 2 h conversion time showed high viscosity values, for this reason its applicability as fracture fluid and temporary polymer plug was studied. Dynamic experiments with small sinusoidal deformations were also performed to investigate its rheological behavior. © 2007 Elsevier Ltd. All rights reserved. Fil:Vega, I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:D'Accorso, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13815148_v68_n1_p233_Vega http://hdl.handle.net/20.500.12110/paper_13815148_v68_n1_p233_Vega |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
1,3-Oxazolic pendant groups Chemical modification Fracture fluid Temporary polymer plug Chemical modification Molecular structure Nuclear magnetic resonance Polyacrylates Rheology Synthesis (chemical) Thermodynamic properties Fracture fluid Pendant groups Sinusoidal deformations Temporary polymer plug Copolymers |
| spellingShingle |
1,3-Oxazolic pendant groups Chemical modification Fracture fluid Temporary polymer plug Chemical modification Molecular structure Nuclear magnetic resonance Polyacrylates Rheology Synthesis (chemical) Thermodynamic properties Fracture fluid Pendant groups Sinusoidal deformations Temporary polymer plug Copolymers Vega, Isabel Natalia D'Accorso, Norma Beatriz Synthesis and characterization of copolymers with 1,3-oxazolic pendant groups |
| topic_facet |
1,3-Oxazolic pendant groups Chemical modification Fracture fluid Temporary polymer plug Chemical modification Molecular structure Nuclear magnetic resonance Polyacrylates Rheology Synthesis (chemical) Thermodynamic properties Fracture fluid Pendant groups Sinusoidal deformations Temporary polymer plug Copolymers |
| description |
Chemical modification of inexpensive commercial polymers, such as polyacrylamide (PAM), is a safe methodology to obtain new copolymers. These new materials possess properties quite different from their precursors. In this case, we synthesized copolymers containing 1,3-oxazolic pendant groups. Molecular structures were confirmed by IR and 13C NMR. Conversion yields were calculated by means of elemental analysis. Thermal properties were studied by TGA and DSC techniques. The dependence of viscosity with conversion degrees was also analyzed. Amide-5-phenyl-1,3-oxazole copolymer (APOC) of 2 h conversion time showed high viscosity values, for this reason its applicability as fracture fluid and temporary polymer plug was studied. Dynamic experiments with small sinusoidal deformations were also performed to investigate its rheological behavior. © 2007 Elsevier Ltd. All rights reserved. |
| author |
Vega, Isabel Natalia D'Accorso, Norma Beatriz |
| author_facet |
Vega, Isabel Natalia D'Accorso, Norma Beatriz |
| author_sort |
Vega, Isabel Natalia |
| title |
Synthesis and characterization of copolymers with 1,3-oxazolic pendant groups |
| title_short |
Synthesis and characterization of copolymers with 1,3-oxazolic pendant groups |
| title_full |
Synthesis and characterization of copolymers with 1,3-oxazolic pendant groups |
| title_fullStr |
Synthesis and characterization of copolymers with 1,3-oxazolic pendant groups |
| title_full_unstemmed |
Synthesis and characterization of copolymers with 1,3-oxazolic pendant groups |
| title_sort |
synthesis and characterization of copolymers with 1,3-oxazolic pendant groups |
| publishDate |
2008 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13815148_v68_n1_p233_Vega http://hdl.handle.net/20.500.12110/paper_13815148_v68_n1_p233_Vega |
| work_keys_str_mv |
AT vegaisabelnatalia synthesisandcharacterizationofcopolymerswith13oxazolicpendantgroups AT daccorsonormabeatriz synthesisandcharacterizationofcopolymerswith13oxazolicpendantgroups |
| _version_ |
1768546174940217344 |