Synthesis 2021; 53(15): 2602-2611
DOI: 10.1055/s-0040-1706743
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Thia-Bridged Triarylamine[4]helicene-Functionalized Polynorbor­nenes as Redox-Active pH-Sensitive Polymers

Michela Lupi
a   Department of Chemistry ‘Ugo Schiff’, University of Florence, Via Della Lastruccia 3–13, Sesto Fiorentino, 50019 Firenze, Italy
,
Stefano Menichetti
a   Department of Chemistry ‘Ugo Schiff’, University of Florence, Via Della Lastruccia 3–13, Sesto Fiorentino, 50019 Firenze, Italy
,
Paola Stagnaro
b   Institute of Chemical Sciences and Technologies (SCITEC) ‘Giulio Natta’, Italian National Research Council, Via De Marini 6, 16149 Genova, Italy
,
Roberto Utzeri
b   Institute of Chemical Sciences and Technologies (SCITEC) ‘Giulio Natta’, Italian National Research Council, Via De Marini 6, 16149 Genova, Italy
,
a   Department of Chemistry ‘Ugo Schiff’, University of Florence, Via Della Lastruccia 3–13, Sesto Fiorentino, 50019 Firenze, Italy
› Author Affiliations
The authors thank MIUR-Italy (‘Progetto Dipartimenti di Eccellenza 2018–2022’ allocated to Department of Chemistry ‘Ugo Schiff’, University of Florence, Italy) for financial support.


Abstract

A series of thia-bridged triarylamine[4]helicene-functionalized polynorbornenes P1, P2, and P3 were synthesized via ring-opening metathesis polymerization (ROMP). The polymers obtained undergo a reversible one-electron oxidation, in both solution and solid state, responding to the pH changes in the surrounding medium showing a clear reversible electrochromic behavior.

Supporting Information



Publication History

Received: 23 December 2020

Accepted after revision: 11 February 2021

Article published online:
11 March 2021

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