A series of new polyamides were synthesized by direct polycondensation of the 1,6-bis(4-aminophenyl)diamantane with various dicarboxylic acids. The soluble polyamides had high inherent viscosities, ranging from 0.73 to 1.21 dL/g. Polyamides derived from 5-tert-butylisophthalic acid and ( {)-1,3-cycl
Preparation and properties of new polycyclic aliphatic polyamides base on diamantane
β Scribed by Yaw-Terng Chern; Jea-Shih Fang; Meng-An Chung
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 397 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0021-8995
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β¦ Synopsis
A series of novel polycyclic aliphatic polyamides was synthesized by direct polycondensation of the 1,6-diamantane dicarboxylic acid with various alicyclic diamines in N-methyl-2pyrrolidone (NMP) containing lithium chloride, using triphenyl phosphite and pyridine as a condensing agent. The polyamides had inherent viscosities of 0.33-0.49 dL/g. The glass transition temperatures of the these polyamides were in the range of 2O0-22O0C, and the 5% weight loss temperatures were in the range were 290-319Β°C in nitrogen. 0 1995
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