Polymerization-Induced Cooperative Assembly of Block Copolymer and Homopolymer via RAFT Dispersion Polymerization was written by Zhu, Anqi;Lv, Xiaoqing;Shen, Liangliang;Zhang, Baohua;An, Zesheng. And the article was included in ACS Macro Letters in 2017.Electric Literature of C7H6Cl2O This article mentions the following:
Polymerization-induced cooperative assembly (PICA) is developed to promote morphol. transitions at high solids via RAFT dispersion polymerization, using both a macromol. chain transfer agent (macro-CTA) and a small mol. chain transfer agent (CTA) to generate nano-objects consisting of well-defined block copolymer and homopolymer. PICA is demonstrated to promote morphol. transitions under various conditions. Elemental mapping provides unambiguous evidence for the uniform distribution of the homopolymer within the core of the nano-objects. It is proposed that the growing homopolymer first reaches its solubility limit and forms aggregates, which induce the adsorption of the growing block copolymer. This effective and robust PICA approach significantly expands the capability to promote morphol. transitions in RAFT dispersion polymerization and will facilitate the efficient synthesis of various higher-order morphologies at high solids. In the experiment, the researchers used many compounds, for example, (2,4-Dichlorophenyl)methanol (cas: 1777-82-8Electric Literature of C7H6Cl2O).
(2,4-Dichlorophenyl)methanol (cas: 1777-82-8) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Electric Literature of C7H6Cl2O
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts