Synthesis and characterization of inorganic-organic polymer microgels for catalytic reduction of 4-nitroaniline in aqueous medium

2016 ◽  
Vol 39 (3) ◽  
pp. 645-653 ◽  
Author(s):  
Zahoor Hussain Farooqi ◽  
Aysha Ijaz ◽  
Robina Begum ◽  
Khalida Naseem ◽  
Muhammad Usman ◽  
...  
1993 ◽  
Vol 48 (12) ◽  
pp. 1781-1783 ◽  
Author(s):  
Abdel-Fattah Shihada

(Me3Sn)3PO3S has been prepared from the reaction of Me3SnCl with Na3PO3S • 12 H2O under cooling in aqueous medium. Its IR and Raman spectra are found to be consistent with a polymeric structure with tetra- and penta-coordinated tin atoms. The 31P NMR and mass spectra of (Me3Sn)3PO3S are reported and discussed.


1999 ◽  
Vol 14 (2) ◽  
pp. 315-318 ◽  
Author(s):  
Phillip B. Messersmith ◽  
Paul Osenar ◽  
Samuel I. Stupp

We described previously the liquid phase synthesis and characterization of a nanostructured composite from an aqueous solution containing organic polymer and inorganic ions [J. Mater. Res. 7, 2599 (1992)]. The nanocomposite, termed an organoceramic, consisted of poly(vinyl alcohol) chains intercalated between the principal layers of a hydrated calcium aluminate ceramic. A key structural feature of the organoceramic is the polymer-induced expansion of the interlayer spacing by approximately 10 Å compared to the unmodified ceramic. In this paper, we describe the synthetic scheme that favors organoceramic formation and prove the existence of intercalated polymer by observation of reversible interlayer expansion and contraction in response to changes in ambient humidity. This property is unique to the organoceramic and is not observed in the unmodified calcium aluminate ceramic.


Sign in / Sign up

Export Citation Format

Share Document