Issue 5, 2015
From the journal:

RSC Advances

Amine- and blocked isocyanate-terminated polyurethane dendrimers: integrated synthesis, photophysical properties and application in a heat curable system†

S. Veerapandiana  and  A. Sultan Nasar*a  

* Corresponding authors

a Department of polymer Science, University of Madras, Guindy Campus, Chennai 600 025, India
E-mail: drasultannasar@yahoo.com, drasultannasar@unom.ac.in
Tel: +044-22202820

Abstract

A highly efficient, scalable, three step divergent synthesis of blocked isocyanate-terminated polyurethane dendrimers up to fourth generation (G4) has been developed avoiding the formation of free isocyanate. Amine-terminated polyurethane dendrimers were obtained as complementary functional materials in the second step. The blocked isocyanate moiety possessing easily cleavable blocking agents facilitated the dendrimer construction. Heat-curable adhesives based on G2 dendrimers tested on aluminum plates showed tensile shear strength of 2.41 MPa.

Graphical abstract: Amine- and blocked isocyanate-terminated polyurethane dendrimers: integrated synthesis, photophysical properties and application in a heat curable system

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Article information

DOI
https://doi.org/10.1039/C4RA12751J
Article type
Paper
Submitted
20 Oct 2014
Accepted
04 Dec 2014
First published
04 Dec 2014

RSC Adv., 2015,5, 3799-3806

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Amine- and blocked isocyanate-terminated polyurethane dendrimers: integrated synthesis, photophysical properties and application in a heat curable system

S. Veerapandian and A. S. Nasar, RSC Adv., 2015, 5, 3799 DOI: 10.1039/C4RA12751J

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