𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis, characterization of novel dihydrazide containing polyurethanes based on N1,N2-bis[(4-hydroxyphenyl)methylene]ethanedihydrazide and various diisocyanates

✍ Scribed by A. V. Raghu; Han Mo Jeong


Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
294 KB
Volume
107
Category
Article
ISSN
0021-8995

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Synthesis, characterization, and acousti
✍ A. V. Raghu; G. S. Gadaginamath; N. Mathew; S. B. Halligudi; T. M. Aminabhavi 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 286 KB 👁 2 views

## Abstract Eight novel polyurethanes based on 2,2′‐[1,4‐phenylenebis(nitrilomethylylidene)]diphenol and 2,2′‐[4,4′‐methylene‐di‐2‐methylphenylene‐1,1′‐bis(nitrilomethylylidene)]diphenol acting as hard segments with two aromatic and two aliphatic diisocyanates (4,4′‐diphenylmethane diisocyanate, to

Synthesis and characterization of novel
✍ Xiaolong Wang; Yanfeng Li; Chengliang Gong; Shujiang Zhang; Tao Ma 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 269 KB 👁 2 views

## Abstract A new kind of pyridine‐containing aromatic diamine monomer, 4‐phenyl‐2,6‐bis[4‐(4‐aminophenoxy)phenyl]‐pyridine (PAPP), was successfully synthesized by a modified chichibabin reaction of benzaldehyde and a substituted acetophenone, 4‐(4‐nitrophenoxy)‐acetophenone (NPAP), followed by a r