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Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction
Published on: January 19, 2016
Thermal degradation behavior of methyl methacrylate derived copolymer
Esin Kaya1, Adnan Kurt, Mustafa Er
1Faculty of Education, Department of Science Education, Mus Alparslan University, 49100 Mus, Turkey.
Journal of Nanoscience and Nanotechnology
|February 21, 2013
Summary
A novel copolymer, poly(2-hydroxy-3-menthyloxy-1-(4-methoxyphenyl)-3-oxopropyl methacrylate-co-methyl methacrylate) [poly(HMOPMA-co-MMA)], was synthesized. Thermal analysis revealed a decomposition mechanism following one-dimensional diffusion kinetics.
Area of Science:
- Polymer Chemistry
- Materials Science
- Organic Synthesis
Background:
- Copolymers offer tunable properties for diverse applications.
- Understanding thermal degradation is crucial for material stability and processing.
- Methacrylate-based polymers are widely used in various industries.
Purpose of the Study:
- To synthesize and characterize a novel copolymer of HMOPMA and MMA.
- To determine the copolymer's solubility parameter.
- To investigate the thermal degradation kinetics and mechanism of the synthesized copolymer.
Main Methods:
- Free radical polymerization for copolymer synthesis.
- Turbidimetric titration for solubility parameter determination.
- Thermogravimetric analysis (TGA) coupled with Kissinger and Flyn-Wall-Ozawa methods for thermal degradation studies.
Main Results:
- Copolymer composition: 19% HMOPMA and 81% MMA.
- Solubility parameter of poly(HMOPMA-co-MMA) determined as 10.3 cal(1/2) cm(-3/2).
- Decomposition activation energies calculated as 119.99 kJ/mol (Kissinger) and 125.34 kJ/mol (Flyn-Wall-Ozawa).
Conclusions:
- The novel poly(HMOPMA-co-MMA) was successfully synthesized with defined composition and solubility.
- Thermal degradation analysis indicates a solid-state mechanism (D1) involving one-dimensional diffusion.
- The kinetic data provides insights into the thermal stability and decomposition pathways of the copolymer.
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