✦ LIBER ✦

Polyamides incorporating phosphine oxide groups. I. Wholly aromatic polymers

✍ Scribed by Yuehua Zhang; John C. Tebby; John W. Wheeler

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 414 KB
Volume: 34
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(199606)34:8<1561::aid-pola20>3.0.co;2-5

No coin nor oath required. For personal study only.

✦ Synopsis

Five novel polyamides incorporating phosphine oxide groups have been synthesized by the condensation reaction of bis(4-carboxypheny1)phenylphosphine oxide with a series of aromatic diamines. The thermal properties of these polymers were investigated by differential scanning calorimetry and thermogravimetric analysis. Glass transition temperatures in the 225-254°C range were recorded, together with good thermooxidative stability (5% weight loss occurring at >42OoC) and high char yield upon prolonged heating at 650-800°C (24-50%). Also, good solubility in aprotic polar solvents was observed for all polyamides synthesized.

📜 SIMILAR VOLUMES

Polyamides incorporating phosphine oxide

Polyamides incorporating phosphine oxide groups. III. Polymerisation of bis[4-(2-aminoethyl)aminophenyl]-phenylphosphine oxide with dicarboxylic acids

✍ Yuehua Zhang; John C. Tebby; John W. Wheeler 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 122 KB 👁 1 views

The new polymerisation monomer bis [4-(2-aminoethyl)aminophenyl]phenylphosphine oxide (p-BAPPO) was prepared in good yield by the nucleophilic substitution reaction between bis(4-fluorophenyl)phenylphosphine oxide and a large excess of 1,2-diaminoethane. Five novel polyamides, incorporating phosphin