Interpenetrating polymer networks of poly(butyl methacrylate) and poly(α-terpineol-co-styrene): Synthesis and characterization
| Autor: | Asheesh Srivastava, Shalini Pathak |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Thermogravimetric analysis
Polymers and Plastics Azobisisobutyronitrile General Chemistry Surfaces Coatings and Films Styrene chemistry.chemical_compound Monomer Differential scanning calorimetry chemistry Polymer chemistry Materials Chemistry Copolymer Molar mass distribution Interpenetrating polymer network |
| Zdroj: | Journal of Applied Polymer Science. 100:343-352 |
| ISSN: | 1097-4628 0021-8995 |
| DOI: | 10.1002/app.23114 |
| Popis: | Simultaneous interpenetrating polymer networks (IPNs) based on poly(butyl methacrylate) and poly(α-terpineol-co-styrene) were synthesized with azobisisobutyronitrile (AIBN) as the initiator and divinyl benzene as the crosslinking agent in xylene under an inert nitrogen atmosphere. Fourier transform infrared spectra provided structural evidence for the IPNs, indicating characteristic frequencies of ester groups of butyl methacrylate at 1723 cm−1 and alcoholic groups of α-terpineol at 3436 cm−1. Scanning electron microscopy revealed threadlike network structures. Properties such as percentage swelling and average molecular weight between crosslinks were direct functions of the copolymer and initiator (AIBN) concentrations and inverse functions of the monomer (butyl methacrylate) and crosslinking agent (divinyl benzene) concentrations. Differential scanning calorimetry showed an IPN glass-transition temperature at 80.2°C. The thermal decompositions of the IPNs were established with the help of thermogravimetric analysis. The value of the activation energy, calculated from thermogravimetric analysis with the Coats and Redfern equation, was 23 kJ/mol. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 343–352, 2006 |
| Databáze: | OpenAIRE |
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