Open AccessCover Image, Volume 54, Issue 9
Publication year - 2016
Publication title -
journal of polymer science part a: polymer chemistry
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.768
H-Index - 152
eISSN - 1099-0518
pISSN - 0887-624X
DOI - 10.1002/pola.28076
Subject(s) - siloxane , copolymer , materials science , cover (algebra) , star (game theory) , polymer , polymer chemistry , polymer science , computer science , physics , composite material , mechanical engineering , astrophysics , engineering
On page 1175 (DOI: 10.1002/pola.27960 ) Tomokazu Iyoda and co‐workers discuss the synthesis of well‐defined A 3 B‐, A 2 B 2 ‐, and AB 3 ‐type 4‐miktoarm star copolymers consisting of poly(ethylene oxide) (PEO) and polymethacrylate bearing an azobenzene mesogen [PMA(Az)] as the arms and cyclotetrasiloxane as the core unit. The A 3 B‐type star ‐(PEO) 3 [PMA(Az)] 1 copolymer formed a more highly ordered PEO cylinder array with perpendicular alignment in the PMA(Az) matrix than that of the corresponding linear‐type block copolymer. Moreover, the highly ordered star ‐(PEO) 3 [PMA(Az)] 1 thin film was directly transferred to a siloxane‐based nanodot array by oxygen reactive ion etching.