Self-assembly from block copolymers is a bottom-up process
a relatively inexpensive and simple approach for the preparation of large-scale nano-patterns. This self-assembly from diblock copolymers is driven by the combination of repulsive and attractive interactions due to the covalent bond linkage. The intrinsic immiscibility or incompatibility among the A or B block segments possesses the repulsive force and then confines into nanoscaled domain through the microphase separation because of the attractive force from the covalent bond linkage of A and B block segments. In general
these diblock copolymers can form different well-defined nanostructures in the bulk state including alternative lamellae
bicontinuous double gyroid
hexagonally packed cylinder
and body-centered cubic (BCC) structures
depending on the relative volume fractions of the block copolymer segments
interaction parameters (
χ
)
and degrees of polymerization (
N
). However
the preparation of block copolymers with controlled volume fraction would be complicated and time-consuming; thus the diblock copolymers (A-
b
-B) blending with their homopolymer or low-molecular-weight compound would be an easier method for preparing different self-assembled nanostructures. Therefore
self-assembly nanostructures of block copolymer mixtures through mediated hydrogen bonding interactions have attracted much interest in polymer science because of their potential applications in photonic
electronic and biomedical fields
which could offer the unique possibility to create new functional polymeric materials with tunable and responsive behaviors. In this review article
we describe the self-assembly nanostructure of the block copolymer mixtures including block copolymer/low molecular weight compound
block copolymer/homopolymer
and block copolymer/block copolymer mixtures in bulk and solution states by mediated hydrogen bonding strength. Mediated strength of hydrogen bonding in block copolymer blending with homopolymer or block copolymer could provide order-order phase transition from typical lamellar
double gyroid
cylinder
and BCC spherical structure
even various hierarchical self-assembly structures such as three-phase lamellae
core-shell cylinder
and cylinder in lamellae structures in bulk state. Furthermore
it also possesses the different micellar structures of block copolymer mixtures such as spheres
rods
vesicles
and even large compound micelles in solution state.
Synthesis of Self-demulsification Thermosensitive Polymeric Surfactants and Their Application in Emulsion Polymerization
Stimuli Responsive Nano-objects via Polymerization Induced Self-assembly
Effect of Steric Hindrance on Microphase-separated Structures of Block Copolymers Constructed by Hydrogen Bonding
Regulation of Polystyrene Blocks on Stereocomplex Crystallization Behavior of Poly(L-lactic acid)/Polystyrene-b-Poly(D-lactic acid) Blends
Synthesis and Investigation on Molecular Conformation of Amphiphilic Dendronized Brush Block Copolymer
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Related Institution
College of Chemical Engineering, Fuzhou University
College of Materials Science and Engineering, Nanjing Tech University
State Key Laboratory of Materials-Oriented Chemical Engineering
College of Biotechnology and Pharmaceutical Engineering
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University