Hierarchical self-assembled structures from POSS-containing block copolymers synthesized by living anionic polymerization

Tomoyasu Hirai, Melvina Leolukman, Sangwoo Jin, Raita Goseki, Yoshihito Ishida, Masa Aki Kakimoto, Teruaki Hayakawa, Moonhor Ree, Padma Gopalan

Research output: Contribution to journalArticle

130 Citations (Scopus)

Abstract

Two kinds of polyhedral oligomeric silsesquioxane (POSS)-containing block copolymers (BCPs), namely PS-b-PMAPOSS and PMMA-b-PMAPOSS, were synthesized by living anionic polymerization. A wide range of molecular weights were obtained with a very narrow polydispersity index of less than 1.09. The bulk samples prepared by slow evaporation from a polymer solution in chloroform exhibit welldefined microphase-separated structures with long-range order. Thermal annealing induced hierarchical structures consisting of a smaller length scale ordered crystalline POSS domains within the larger microphaseseparated structures. We report detailed structural characterization of these hierarchical structures in bulk and thin films by transmission electron microscopy and grazing incidence wide-angle X-ray scattering (GIWAXS). On the basis of this structural analysis, we propose a model for the formation of an orthorhombic lattice structure through the aggregation of POSS segments which formed a helix-like structure.

Original languageEnglish
Pages (from-to)8835-8843
Number of pages9
JournalMacromolecules
Volume42
Issue number22
DOIs
Publication statusPublished - Nov 24 2009

Fingerprint

Living polymerization
Anionic polymerization
Polydispersity
Polymer solutions
Chloroform
Chlorine compounds
X ray scattering
Structural analysis
Block copolymers
Evaporation
Agglomeration
Molecular weight
Annealing
Crystalline materials
Transmission electron microscopy
Thin films
polystyrene-block-poly(methyl methacrylate)
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry

Cite this

Hirai, T., Leolukman, M., Jin, S., Goseki, R., Ishida, Y., Kakimoto, M. A., ... Gopalan, P. (2009). Hierarchical self-assembled structures from POSS-containing block copolymers synthesized by living anionic polymerization. Macromolecules, 42(22), 8835-8843. https://doi.org/10.1021/ma9018944

Hierarchical self-assembled structures from POSS-containing block copolymers synthesized by living anionic polymerization. / Hirai, Tomoyasu; Leolukman, Melvina; Jin, Sangwoo; Goseki, Raita; Ishida, Yoshihito; Kakimoto, Masa Aki; Hayakawa, Teruaki; Ree, Moonhor; Gopalan, Padma.

In: Macromolecules, Vol. 42, No. 22, 24.11.2009, p. 8835-8843.

Research output: Contribution to journalArticle

Hirai, T, Leolukman, M, Jin, S, Goseki, R, Ishida, Y, Kakimoto, MA, Hayakawa, T, Ree, M & Gopalan, P 2009, 'Hierarchical self-assembled structures from POSS-containing block copolymers synthesized by living anionic polymerization', Macromolecules, vol. 42, no. 22, pp. 8835-8843. https://doi.org/10.1021/ma9018944
Hirai, Tomoyasu ; Leolukman, Melvina ; Jin, Sangwoo ; Goseki, Raita ; Ishida, Yoshihito ; Kakimoto, Masa Aki ; Hayakawa, Teruaki ; Ree, Moonhor ; Gopalan, Padma. / Hierarchical self-assembled structures from POSS-containing block copolymers synthesized by living anionic polymerization. In: Macromolecules. 2009 ; Vol. 42, No. 22. pp. 8835-8843.
@article{3ebe5f7362744e4d9900c6c8e24b07b7,
title = "Hierarchical self-assembled structures from POSS-containing block copolymers synthesized by living anionic polymerization",
abstract = "Two kinds of polyhedral oligomeric silsesquioxane (POSS)-containing block copolymers (BCPs), namely PS-b-PMAPOSS and PMMA-b-PMAPOSS, were synthesized by living anionic polymerization. A wide range of molecular weights were obtained with a very narrow polydispersity index of less than 1.09. The bulk samples prepared by slow evaporation from a polymer solution in chloroform exhibit welldefined microphase-separated structures with long-range order. Thermal annealing induced hierarchical structures consisting of a smaller length scale ordered crystalline POSS domains within the larger microphaseseparated structures. We report detailed structural characterization of these hierarchical structures in bulk and thin films by transmission electron microscopy and grazing incidence wide-angle X-ray scattering (GIWAXS). On the basis of this structural analysis, we propose a model for the formation of an orthorhombic lattice structure through the aggregation of POSS segments which formed a helix-like structure.",
author = "Tomoyasu Hirai and Melvina Leolukman and Sangwoo Jin and Raita Goseki and Yoshihito Ishida and Kakimoto, {Masa Aki} and Teruaki Hayakawa and Moonhor Ree and Padma Gopalan",
year = "2009",
month = "11",
day = "24",
doi = "10.1021/ma9018944",
language = "English",
volume = "42",
pages = "8835--8843",
journal = "Macromolecules",
issn = "0024-9297",
publisher = "American Chemical Society",
number = "22",

}

TY - JOUR

T1 - Hierarchical self-assembled structures from POSS-containing block copolymers synthesized by living anionic polymerization

AU - Hirai, Tomoyasu

AU - Leolukman, Melvina

AU - Jin, Sangwoo

AU - Goseki, Raita

AU - Ishida, Yoshihito

AU - Kakimoto, Masa Aki

AU - Hayakawa, Teruaki

AU - Ree, Moonhor

AU - Gopalan, Padma

PY - 2009/11/24

Y1 - 2009/11/24

N2 - Two kinds of polyhedral oligomeric silsesquioxane (POSS)-containing block copolymers (BCPs), namely PS-b-PMAPOSS and PMMA-b-PMAPOSS, were synthesized by living anionic polymerization. A wide range of molecular weights were obtained with a very narrow polydispersity index of less than 1.09. The bulk samples prepared by slow evaporation from a polymer solution in chloroform exhibit welldefined microphase-separated structures with long-range order. Thermal annealing induced hierarchical structures consisting of a smaller length scale ordered crystalline POSS domains within the larger microphaseseparated structures. We report detailed structural characterization of these hierarchical structures in bulk and thin films by transmission electron microscopy and grazing incidence wide-angle X-ray scattering (GIWAXS). On the basis of this structural analysis, we propose a model for the formation of an orthorhombic lattice structure through the aggregation of POSS segments which formed a helix-like structure.

AB - Two kinds of polyhedral oligomeric silsesquioxane (POSS)-containing block copolymers (BCPs), namely PS-b-PMAPOSS and PMMA-b-PMAPOSS, were synthesized by living anionic polymerization. A wide range of molecular weights were obtained with a very narrow polydispersity index of less than 1.09. The bulk samples prepared by slow evaporation from a polymer solution in chloroform exhibit welldefined microphase-separated structures with long-range order. Thermal annealing induced hierarchical structures consisting of a smaller length scale ordered crystalline POSS domains within the larger microphaseseparated structures. We report detailed structural characterization of these hierarchical structures in bulk and thin films by transmission electron microscopy and grazing incidence wide-angle X-ray scattering (GIWAXS). On the basis of this structural analysis, we propose a model for the formation of an orthorhombic lattice structure through the aggregation of POSS segments which formed a helix-like structure.

UR - http://www.scopus.com/inward/record.url?scp=71549124970&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=71549124970&partnerID=8YFLogxK

U2 - 10.1021/ma9018944

DO - 10.1021/ma9018944

M3 - Article

AN - SCOPUS:71549124970

VL - 42

SP - 8835

EP - 8843

JO - Macromolecules

JF - Macromolecules

SN - 0024-9297

IS - 22

ER -