Reaction kinetics of irradiation- prepolymerized methyl methacrylate-polyurethane interpenetrating polymer networks by FTIR

1991 ◽  
Vol 25 (4) ◽  
pp. 237-243 ◽  
Author(s):  
Geng-Chao Wang ◽  
Jia-Xun Wang ◽  
Zhi-Ping Zhang
Keyword(s):  
Methyl Methacrylate ◽  
Reaction Kinetics ◽  
Polymer Networks ◽  
Interpenetrating Polymer Networks ◽  
Kinetics Of

Room-temperature kinetics of formation of castor-oil-based polyurethane/poly(methyl methacrylate) interpenetrating polymer networks

1993 ◽  
Vol 5 (2) ◽  
pp. 155-160 ◽  
Author(s):  
Bhikhu Suthar ◽  
Kanak Jadav ◽  
Mayank Dave
Keyword(s):  
Infrared Spectroscopy ◽  
Methyl Methacrylate ◽  
Castor Oil ◽  
Room Temperature ◽  
Polymer Networks ◽  
Interpenetrating Polymer Networks ◽  
Poly Methyl Methacrylate ◽  
Kinetics Of Formation ◽  
The Individual ◽  
Kinetics Of

Infrared spectroscopy was used to follow the kinetics of formation of castor-oil-based polyurethane/poly(methyl methacrylate) interpenetrating polymer networks (PU/PMMA IPNs) at room temperature. The synthesis of the individual networks, PU, PMMA and IPNs was studied by measuring the decrease of characteristic absorption peaks of each system.

scholarly journals Reaction kinetics and macromolecule-metal chelate complex formation in metal containing semi-interpenetrating polymer networks based on crosslinked polyurethane and linear polymethylmethacrylate

2008 ◽  
Vol 2 (4) ◽  
pp. 263-270
Author(s):  
Ludmila Kosyanchuk ◽  
◽  
Nataly Kozak ◽  
Oksana Antonenko ◽  
Yury Nizelskii ◽  
...  
Keyword(s):  
Complex Formation ◽  
Reaction Kinetics ◽  
Metal Chelate ◽  
Polymer Networks ◽  
Interpenetrating Polymer Networks ◽  
The Other ◽  
System Composition ◽  
Kinetics Of Formation ◽  
Kinetics Of ◽  
Formation Of Complexes

According to DSC and EPR data kinetics of formation of simultaneous semi-interpenetrating polymer networks based on crosslinked polyurethane and linear polymethylmethacrylate with 50:50 and 70:30 ratio obtained in the presence of 3d-metal chelates depends on type of metal. On the other hand system composition determines polyurethane or polymethylmethacrylate selection during formation of complexes with metal -diketonates.

scholarly journals EFFECT OF AZOINITIATORS OF METHYL METHACRYLATE POLYMERIZATION ON THE FORMATION PROCESS AND MORFOLOGY OF POLYURETHANE /POLYMETHYL METHACRYLATE INTERPENETRATING POLYMER NETWORKS

2020 ◽  
Vol 86 (9) ◽  
pp. 39-54
Author(s):  
Liudmyla Kosynchuk ◽  
Oksana Antonenko ◽  
Volodymyr Grishchenko ◽  
Nataliia Busko ◽  
Taisa Ignatova ◽  
...  
Keyword(s):  
Phase Separation ◽  
Methyl Methacrylate ◽  
Chemical Reactions ◽  
Polymer Networks ◽  
Heterogeneous Systems ◽  
Interpenetrating Polymer Networks ◽  
Methyl Methacrylate Polymerization ◽  
Negative Effect ◽  
Kinetics Of

Interpenetrating polymer networks (IPN) are mixtures of two cross-linked polymers formed as a result of chemical reactions of in situ synthesis of components from single-phase initial mixtures. As a rule, due to the incompatibility of the components, a physical process of phase separation takes place with the formation of heterogeneous systems with insignificant interphase adhesion, which can have a negative effect on the physicochemical properties. To increase the compatibility of the components and to stabilize the systems, compatibilizers are introduced into the reaction mixtures. In this work the kinetics of the in situ formation of the components of polyurethane/poly(methyl methacrylate) interpenetrating polymer networks and the phase separation induced by chemical reactions in the presence of methyl methacrylate polymerization oligoazoinitiators in the reaction mixture were studied. Oligoazoinitiators contained fragments of a polyurethane chain also. It has been shown that the introduction of oligoazoinitiators of various chemical natures can control the process of IPN formation due to the formation of block copolymers during synthesis, which are compatibilizers of the mixture. They slow down the phase separation process and favor the formation of a finer IPN structure.

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