Nanotube Self-Assembly of a Styrene and Maleimide Alternating Copolymer
2008; American Chemical Society; Volume: 41; Issue: 18 Linguagem: Inglês
10.1021/ma800926a
ISSN1520-5835
AutoresThomas D. Lazzara, Theo G. M. van de Ven, M. A. Whitehead,
Tópico(s)Conducting polymers and applications
ResumoThe self-assembly of poly(styrene-alt-dimethyl-N,N-propylamide) (SMI) polymers into nanotubes was studied using semiempirical PM3 calculations. Ordered polymer self-assembly results from π-stacking of styrenes and van der Waals interactions between the maleimide chains. Every styrene, and half of the maleimide chains, in a racemo-di-isotactic SMI polymer form π-stacks and chain−chain pairs with neighboring racemo-di-isotactic polymer. Racemo-di-isotactic polymers in bent associations form a minimum-energy nanotube structure. Nanorods were observed experimentally with diameters of ∼5 nm.
Referência(s)