Novel bismaleimide with naphthalene and aryl ether linkages
โ Scribed by Chun-Shan Wang; Tsu-Shang Leu
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 162 KB
- Volume
- 73
- Category
- Article
- ISSN
- 0021-8995
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โฆ Synopsis
A novel bismaleimide (BMI), bis(4-maleimidophenoxy-3,5-dimethylphenyl)naphthylmethane, containing a pendant naphthalene and aryl ether linkage, was synthesized from bis(4-hydroxy-3,5-dimethylphenyl)naphthylmethane through multistep reactions. The BMI was characterized by Fourier transform infrared spectroscopy, elemental analysis, and mass spectroscopy. Owing to the pendant naphthalene group and aryl ether linkage in the backbone, the BMI possessed an excellent balance of properties; solubility, processability, and thermal stability. The BMI was cured with 4,4ะ-diaminodiphenylmethane at various mole ratios, and their thermal properties were investigated by differential scanning calorimetry and thermogravimetric analysis.
๐ SIMILAR VOLUMES
To improve the ablativity of bismaleimide-type resins, a series of novel allyl compounds containing boron in their molecular structure, designated as ACB, were synthesized and characterized. The copolymers made up of 4,4ะ-bismaleimidodiphenyl methane (BDM) and each ACB were prepared. The properties
Novel poly(aryl ether ketone)s were synthesized by nucleophilic substitution reactions of difluoromonomer with 4,49-biphenol and substituted hydroquinone. The results showed that the novel polymers exhibited multiple phase transitions and formed optical birefringence textures above their melting tra