Home
Resources
Publications
Synthesis and Spectroscopic Analysis of Polydiphenylamine via Oxidation With Bentonite Clay in the Solid State

Synthesis and Spectroscopic Analysis of Polydiphenylamine via Oxidation With Bentonite Clay in the Solid State

Mayara Masae Kubota, Bruno Luis Sacco, Danielly Cristina Bento, Henrique de Santana

Spectrochim Acta A Mol Biomol Spectrosc. 2015 Dec 5;151:80-8.

PMID: 26125986

Abstract:

In this study, solids of polydiphenylamine (PDPA) synthesized mechanochemically by reaction with bentonite (PDPAOB) were studied using Raman spectroscopy. It was possible to identify the chemical species in the PDPA-bentonite compound. The spectra obtained were compared to the spectra of PDPA prepared chemically by oxidation of DPA with K2S2O8 in the solid state, and PDPA produced electrochemically, with the aim of studying the characteristic frequencies of the aromatic segments (DPB), radical cation (DPB(+)) and dication (DPB(2+)) of N,N-diphenylbenzidine (DPB) in the polymer structure of the PDPA. To analyze the segments present, the band characteristic of CC asymmetric stretching of the aromatic ring in the Raman spectra was deconvoluted because of the widening of the band and shifts observed by irradiation at wavelengths of 532 and 785 nm. This procedure showed that there are three distinct contributions in the spectra which facilitate the monitoring of changes in the contributions of the segments in the materials doped with HCl (PDPAOBD) and de-doped with NH4OH, (PDPAOBR).

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP531919	N,N′-Diphenylbenzidine		531-91-9	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: