title: Monolayered organosilicate toroids and related structures: A phase diagram for templating from block copolymers.
abstract: Here we report the controlled generation of micelle-templated organosilicate nanostructures resulting from self-assembly of a block copolymer/organosilicate mixture followed by organosilicate vitrification and copolymer thermolysis. Variation of solution condition and the copolymer/organosilicate mixture composition generates widely different film morphologies ranging from toroids to linear features to contiguous nanoporous monolayers. The use of reactive organosilicates for block copolymer templation generates functional inorganic nanostructures with thermal and mechanical stability.
authors.affiliation: IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, USA.
authors.forename: Jeongsoo
authors.initials: J
authors.lastname: Choi
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Hermans
authors.forename: Bas G G
authors.initials: BG
authors.lastname: Lohmeijer
authors.forename: Russell C
authors.initials: RC
authors.lastname: Pratt
authors.forename: Geraud
authors.initials: G
authors.lastname: Dubois
authors.forename: Jane
authors.initials: J
authors.lastname: Frommer
authors.forename: Robert M
authors.initials: RM
authors.lastname: Waymouth
authors.forename: James L
authors.initials: JL
authors.lastname: Hedrick
mesh_terms: D000178:Acrylamides / Q000032:analysis / Q000737:chemistry*; D003102:Colloids / Q000032:analysis / Q000737:chemistry; D003460:Crystallization / Q000379:methods*; D006358:Hot Temperature; D019344:Lactic Acid / Q000032:analysis / Q000737:chemistry*; D008422:Materials Testing; D008567:Membranes, Artificial; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D044367:Phase Transition; D011091:Polyesters; D011108:Polymers / Q000032:analysis / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D000178:Acrylamides; D003102:Colloids; D008567:Membranes, Artificial; D011091:Polyesters; D011108:Polymers; C429790:poly(N,N-dimethylacrylamide); D019344:Lactic Acid; C033616:poly(lactide)