两亲性
共聚物
聚合
丙烯酸酯
化学
动态光散射
聚合物
高分子化学
自由基聚合
水溶液
磺酸盐
组合化学
材料科学
有机化学
纳米技术
纳米颗粒
钠
作者
Théophile Pelras,Anton H. Hofman,Lieke M. H. Germain,Anna M. C. Maan,Katja Loos,Marleen Kamperman
出处
期刊:Macromolecules
[American Chemical Society]
日期:2022-09-26
卷期号:55 (19): 8795-8807
被引量:6
标识
DOI:10.1021/acs.macromol.2c01487
摘要
Despite recent developments in controlled polymerization techniques, the straightforward synthesis of block copolymers that feature both strong anionic and charge-neutral segments remains a difficult endeavor. In particular, solubility issues may arise during the direct synthesis of strong amphiphiles and typical postpolymerization deprotection often requires harsh conditions. To overcome these challenges, we employed Cu(0)-mediated reversible deactivation radical polymerization (Cu(0)-RDRP) on a hydrophobic isobutoxy-protected 3-sulfopropyl acrylate. Cu(0)-RDRP enables the rapid synthesis of the polymer, reaching high conversions and low dispersities while using a single solvent system and low amounts of copper species. These macromolecules are straightforward to characterize and can subsequently be deprotected in a mild yet highly efficient fashion to expose their strongly charged nature. Furthermore, a protected sulfonate segment could be grown from a variety of charge-neutral macroinitiators to produce, after the use of the same deprotection chemistry, a library of amphiphilic, double-hydrophilic as well as thermoresponsive block copolymers (BCPs). The ability of these various BCPs to self-assemble in aqueous media was further studied by dynamic light scattering, ζ-potential measurements as well as atomic force and electron microscopy.
科研通智能强力驱动
Strongly Powered by AbleSci AI