A noncentrosymmetric, star-shaped polymeric system is presented, which forms unimolecular micelles upon complexation of poly(propylene oxide) (PPO) with poly(dimethylaminoethyl methacrylate) (PDMAEMA). The influence of macromolecular architecture on the hydrophobicity of PPO and its interaction with PDMAEMA is investigated. Within stars, a complex between PPO and PDMAEMA is formed, lowering the interfacial tension of the hydrophobic domain (PDMAEMA acts as a "microsurfactant" for PPO). This leads to a pronounced drop in aggregation number compared to similar diblock copolymers, as corroborated by a scaling approach.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/mz300043s | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Self-Assembly of Poly(Janus particle)s into Unimolecular and Oligomeric Spherical Micelles.
ACS Macro Lett
December 2021
College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.
Using shape-persistent Janus particles to construct poly(Janus particle)s and studying their self-assembly behaviors are of great interest, but remain largely unexplored. In this work, we reported a type of amphiphiles constructed by the ring-opening metathesis polymerization of nonspherical molecular Janus particles (APOSS-BPOSS), called poly(Janus particle)s (poly(APOSS-BPOSS), = 12, 17, 22, and 35, and = 35-100 kg/mol). Unlike traditional bottlebrush polymers consisting of flexible side chains, these poly(Janus particles) consist of rigid hydrophilic and hydrophobic polyhedral oligomeric silsesquioxane (POSS) cages as side chains.
View Article and Find Full Text PDFAmphiphilic Arborescent Copolymers and Microgels: From Unimolecular Micelles in a Selective Solvent to the Stable Monolayers of Variable Density and Nanostructure at a Liquid Interface.
ACS Appl Mater Interfaces
September 2017
Physics Department, Lomonosov Moscow State University, Moscow 119991, Russian Federation.
Amphiphilic arborescent block copolymers of two generations (G2 and G3) and polymer microgels, obtained via cross-linking of diblock copolymers, were studied in a selective solvent and at liquid interface via dissipative particle dynamics (DPD) simulations. Depending on the primary structure, single arborescent macromolecules in selective solvent can have both core-corona and multicore structures. Self-assembly of the G2, G3, and microgels in the selective solvent is compared with equivalent linear diblock copolymers.
View Article and Find Full Text PDFUnimolecular Janus Micelles by Microenvironment-Induced, Internal Complexation.
ACS Macro Lett
April 2012
Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52056 Aachen, Germany.
A noncentrosymmetric, star-shaped polymeric system is presented, which forms unimolecular micelles upon complexation of poly(propylene oxide) (PPO) with poly(dimethylaminoethyl methacrylate) (PDMAEMA). The influence of macromolecular architecture on the hydrophobicity of PPO and its interaction with PDMAEMA is investigated. Within stars, a complex between PPO and PDMAEMA is formed, lowering the interfacial tension of the hydrophobic domain (PDMAEMA acts as a "microsurfactant" for PPO).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!