Premium
Liquid Crystalline Dendritic Networks Derived from Poly(propylene imine) (PPI) Dendrimers
Author(s) -
Marcos Mercedes,
MartínRapún Rafael,
Serrano JoséLuis,
SánchezFerrer Antoni
Publication year - 2005
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200500443
Subject(s) - dendrimer , imine , materials science , polymer chemistry , liquid crystalline , polymer science , chemical engineering , chemistry , organic chemistry , composite material , polymer , engineering , catalysis
Abstract Summary: A nematic liquid crystalline network based on a poly(propylene imine) dendrimer [PPI‐(NH 2 ) 32 (G = 4)] was prepared in the form of films. In the network the PPI dendritic molecules are partially functionalised with a chiral aldehyde and are connected to each other by an achiral dialdehyde. The phase behaviour of the network was investigated by polarising‐light optical microscopy, differential scanning calorimetry, and X‐ray diffractometry. Thermoelastic measurements ruled out the possible elastomeric nature of the material.Schematic of the nematic dendritic network prepared here.