Synthesis and Characteristics of Phosphonate-Containing Maleimide Polymers.
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- Shu Wei-Jye
- Department of Chemical Engineering, Ta-Hwa Institute of Technology Department of Chemical Engineering, National Tsing Hua University
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- Perng Li-Hsiang
- Department of Chemical Engineering, Ta-Hwa Institute of Technology
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- Chin Wei-Kuo
- Department of Chemical Engineering, National Tsing Hua University
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Description
Phosphonate-containing N-phenyl maleimide monomers were synthesized by a two-step reaction. All maleimide polymers were synthesized by free radical polymerization in toluene solution using azobis(isobutyronitrile) (AIBN) as initiator. The structures of the maleimide monomers were identified by 1H, 13C, 31P-NMR, and element analysis. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TG) were used to analyze the thermal properties of the polymers. The degree of polymerization in phosphonate-containing maleimide polymers should be affected by side chains. The introduction of phosphonate into a side chain of maleimide polymer may reduce the glass transition temperature (Tg) and thermal stability, but increase char yield of solid residue as an excellent flame retardant. Tg and thermal stability of the phosphonate-containing maleimide polymers depended on substitution of the phenyl ring in the side chain. Phosphonate-containing maleimide polymers with halogen or sulfur atom may combine the flame retarding mechanism of gas-phase and solid-phase to promote their flame retardancy.
Journal
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- Polymer Journal
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Polymer Journal 33 (9), 676-684, 2001
The Society of Polymer Science, Japan
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Details 詳細情報について
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- CRID
- 1390282681265836544
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- NII Article ID
- 130004430342
- 10010077544
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- NII Book ID
- AA00777013
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- COI
- 1:CAS:528:DC%2BD3MXntVGktrs%3D
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- ISSN
- 13490540
- 00323896
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- NDL BIB ID
- 5914232
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed