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Synthesis and Self-Assembly of Styrene–[1]Dimethylsilaferrocenophane–Methyl Methacrylate Pentablock Copolymers

✍ Scribed by Uttam Datta; Matthias Rehahn

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
332 KB
Volume
25
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Summary: Well‐defined pentablock copolymers of styrene–[1]dimethylsilaferrocenophane–methyl methacrylate (PMMA‐b‐PFS‐b‐PS‐b‐PFS‐b‐PMMA) are synthesized using lithium naphthalide as initiator and a 1,1‐dimethylsilacyclobutane‐mediated 1,1‐diphenylethylene (DPE) end‐capping technique. Annealing under various conditions followed by analysis by transmission electron microscopy revealed good phase separation by the copolymers and the presence of ordered microstructures, such as spheres‐on/in‐spheres, and spheres‐on/in‐lamellae micromorphologies.

Structure of the styrene–[1]dimethylsilaferrocenophane–methyl methacrylate pentablock copolymers.

magnified imageStructure of the styrene–[1]dimethylsilaferrocenophane–methyl methacrylate pentablock copolymers.

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