Synthesis of three novel phosphorus-containing flame retardants and their application in epoxy resins
✍ Scribed by Dechao Sun; Youwei Yao
- Book ID
- 113856925
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 348 KB
- Volume
- 96
- Category
- Article
- ISSN
- 0141-3910
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## Abstract A novel phosphorus‐containing epoxy resin (EPN‐D) was prepared by addition reaction of 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene 10‐oxide (DOPO) and epoxy phenol‐ formaldehyde novolac resin (EPN). The reaction was monitored by epoxide equivalent weight (EEW) titration, and its structure
A new type of epoxy resin, which contained phosphorus oxide and nitrogen groups in the main chain, was synthesized. The structure of the new type of epoxy resin was confirmed by infrared (IR) spectroscopy, 1 H nuclear magnetic resonance ( 1 H-NMR), and 13 C-NMR spectroscopic techniques. In addition,