ETD system

Electronic theses and dissertations repository

 

Tesi etd-01102012-200623


Thesis type
Tesi di dottorato di ricerca
Author
MENGHETTI, SARA
URN
etd-01102012-200623
Title
New azobenzene block copolymers for high density optical writing
Settore scientifico disciplinare
CHIM/05
Corso di studi
SCIENZE CHIMICHE
Commissione
tutor Prof. Galli, Giancarlo
Parole chiave
  • optical writing
  • block copolymers
  • azobenzene
Data inizio appello
30/01/2012;
Consultabilità
completa
Riassunto analitico
The work is focused on investigations on azobenzene-based nematic homopolymer, random copolymer and block copolymer samples as candidate materials for high density, purely optical nanowriting. Block copolymers were also dispersed in polymer blends at different weight percent contents.<br>The materials were studied by several techniques, including electron spin resonance spectroscopy and dynamic-mechanical and rheological analyses, in order to confirm suitability for optical nanowriting. Purely optical, reversible nanowriting was effected by scanning near-field optical microscopy (SNOM) at the ∼100 nm scale.
File