Temperature-selective dual radical generation from alkyl diiodide : applications to synthesis of asymmetric cabc multi-block copolymers and their unique assembly structures

Temperature-selective dual radical generation from alkyl diiodide : applications to synthesis of asymmetric cabc multi-block copolymers and their unique assembly structures

Temperature‐selective radical generation from a newly designed alkyl diiodide (I−R2−R1−I) was studied. R1−I and I−R2 had different reactivities for generating alkyl radicals in the presence of a tetraoctylammonium iodide (ONI) catalyst. Taking advantage of the temperature selectivity, we used the al...

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Bibliographic Details
Main Authors: Zheng, Jie, Wang, Chen-Gang, Yamaguchi, Yu, Miyamoto, Michihiko, Goto, Atsushi
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2019
Subjects:
Block Copolymers
Nanoparticles
Science::Chemistry
Online Access:https://hdl.handle.net/10356/106944
http://hdl.handle.net/10220/50046
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Institution: Nanyang Technological University
Language: English
Description
Summary:Temperature‐selective radical generation from a newly designed alkyl diiodide (I−R2−R1−I) was studied. R1−I and I−R2 had different reactivities for generating alkyl radicals in the presence of a tetraoctylammonium iodide (ONI) catalyst. Taking advantage of the temperature selectivity, we used the alkyl diiodide as a dual initiator in ONI‐catalyzed living radical polymerization to uniquely synthesize CABC non‐symmetric multi‐block copolymers. Because of their non‐symmetric structure, CABC multi‐block copolymers form unique assemblies, that is, Janus‐type particles with hetero‐segment coronas and flower‐like particles with hetero‐segment petals.

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