Synthesis and characterization of bis-triethoxysilane endcapped polyurethane/urea
✍ Scribed by Feng Gao; Bin Ku; Shiqiang Huang
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 504 KB
- Volume
- 122
- Category
- Article
- ISSN
- 0021-8995
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## Abstract This paper reports synthesis and characterization of polyurethane–urea (PU‐urea) and the nanocomposites derived from the PU‐urea with silicate clays. Organophilic montmorillonite cotreated by cetyl trimethyl ammonium bromide (CTAB) was synthesized and used to prepare PU‐urea/montmorillo
## Abstract A novel chelating chiral bis(formamidine–urea) ligand was synthesized and used to prepare the corresponding Ni^II^ and Cu^II^ complexes. Spectroscopic and X‐ray crystallographic analysis of the former revealed that the urea moiety of the acyclic tetradentate ligand is deprotonated and b