Dislocation-controlled perforated layer phase in a PEO- b-PS diblock copolymer. Academic Article

abstract

• Small angle x-ray analyses show that the shear-induced hexagonal perforated layer phase in a poly(ethylene oxide)- b-polystyrene diblock copolymer consists of trigonal (R3;m) twins and a hexagonal (P6(3)/mmc) structure, with trigonal twins being majority components. Transmission electron microscopy reveals that the hexagonal structure is generated through sequential intrinsic stacking faults on the second layer from a previous edge dislocation line, while the trigonal twins are formed by successive intrinsic stacking faults on neighboring layers due to the plastic deformation under mechanical shear.

authors

• Thomas, Edwin

published proceedings

• Phys Rev Lett

author list (cited authors)

• Zhu, L., Huang, P., Cheng, S. Z., Ge, Q., Quirk, R. P., Thomas, E. L., ... Liu, L.

citation count

• 62

complete list of authors

• Zhu, L||Huang, P||Cheng, SZ||Ge, Q||Quirk, RP||Thomas, EL||Lotz, B||Wittmann, JC||Hsiao, BS||Yeh, F||Liu, L

publication date

• June 2001

publisher

• American Physical Society (APS)  Publisher

published in

• Physical Review Letters  Journal

keywords

• 40 Engineering
• 4016 Materials Engineering

PubMed Central ID

• 11415421

Digital Object Identifier (DOI)

• 10.1103/PhysRevLett.86.6030

start page

• 6030

end page

• 6033

volume

• 86

issue

• 26 Pt 1

URL

• http://dx.doi.org/10.1103/physrevlett.86.6030