Related Experiment Video
Updated: Aug 7, 2026

Synthesis of Monodisperse Cylindrical Nanoparticles via Crystallization-driven Self-assembly of Biodegradable Block Copolymers
Published on: June 20, 2019
Molecularly asymmetric triblock copolymers as a single-molecule route to ordered bidisperse polymer brushes
Steven D Smith1, Mark W Hamersky, Michelle K Bowman
1Miami Valley Innovation Center, Procter & Gamble Company, Cincinnati, OH 45061, USA.
Abstract:
The conditions signaling the formation of bidisperse brushes in ordered block copolymers are investigated as an A(2) block is progressively grown onto an A(1)B diblock copolymer to form a series of molecularly asymmetric, isomorphic A(1)BA(2) triblock copolymers. Small-angle scattering and self-consistent field theory confirm that the microphase-ordered period decreases when the A(2) block is short relative to the A(1) block, but then increases as A(1)+A(2) bidisperse brushes develop. The mechanical properties systematically follow the spatial distribution of the A(2) block.
Related Concept Videos
Characteristics and Nomenclature of Copolymers
Molecular Weight of Step-Growth Polymers
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...
Cationic Chain-Growth Polymerization: Mechanism
Determination of Molar Masses of Polymers I
Polymer Classification: Architecture
Anionic Chain-Growth Polymerization: Mechanism

