Polymer dispersity control by organocatalyzed living radical polymerization
Molecular weight distribution of polymers, termed dispersity (Đ), is a fundamental parameter for determining polymer material properties. This paper reports a novel approach for controlling Đ by exploiting a temperature‐selective radical generation in organocatalyzed living radical polymerization. T...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | English |
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2020
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| Online Access: | https://hdl.handle.net/10356/137729 |
| _version_ | 1826113447937441792 |
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| author | Liu, Xu Wang, Chen-Gang Goto, Atsushi |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Liu, Xu Wang, Chen-Gang Goto, Atsushi |
| author_sort | Liu, Xu |
| collection | NTU |
| description | Molecular weight distribution of polymers, termed dispersity (Đ), is a fundamental parameter for determining polymer material properties. This paper reports a novel approach for controlling Đ by exploiting a temperature‐selective radical generation in organocatalyzed living radical polymerization. The polymers with tailored Đ were synthesized in a batch system without the assistance of an external pump. A unique aspect of this approach is that Đ was tuneable from 1.11 to 1.50 in any segment in diblock, triblock, and multiblock copolymers and in any form of star and brush polymer without segmental or topological restriction. This approach is amenable to various monomers and free from metals and thus attractive for applications. The approach also generated polymer brushes on surfaces with tailored Đ. An interesting finding was that the polymer brushes exhibited unique interaction with external molecules, depending on the Đ value. |
| first_indexed | 2024-10-01T03:23:23Z |
| format | Journal Article |
| id | ntu-10356/137729 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:23:23Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1377292023-02-28T19:51:40Z Polymer dispersity control by organocatalyzed living radical polymerization Liu, Xu Wang, Chen-Gang Goto, Atsushi School of Physical and Mathematical Sciences Science::Chemistry Block Copolymers Iodine Molecular weight distribution of polymers, termed dispersity (Đ), is a fundamental parameter for determining polymer material properties. This paper reports a novel approach for controlling Đ by exploiting a temperature‐selective radical generation in organocatalyzed living radical polymerization. The polymers with tailored Đ were synthesized in a batch system without the assistance of an external pump. A unique aspect of this approach is that Đ was tuneable from 1.11 to 1.50 in any segment in diblock, triblock, and multiblock copolymers and in any form of star and brush polymer without segmental or topological restriction. This approach is amenable to various monomers and free from metals and thus attractive for applications. The approach also generated polymer brushes on surfaces with tailored Đ. An interesting finding was that the polymer brushes exhibited unique interaction with external molecules, depending on the Đ value. MOE (Min. of Education, S’pore) Accepted version 2020-04-13T01:57:55Z 2020-04-13T01:57:55Z 2019 Journal Article Liu, X., Wang, C.-G., & Goto, A. (2019). Polymer dispersity control by organocatalyzed living radical polymerization. Angewandte Chemie International Edition, 58(17), 5598-5603. doi:10.1002/anie.201814573 1433-7851 https://hdl.handle.net/10356/137729 10.1002/anie.201814573 30786121 2-s2.0-85063278759 17 58 5598 5603 en Angewandte Chemie International Edition This is the peer reviewed version of the following article: Liu, X., Wang, C.-G., & Goto, A. (2019). Polymer dispersity control by organocatalyzed living radical polymerization. Angewandte Chemie International Edition, 58(17), 5598-5603. doi:10.1002/anie.201814573, which has been published in final form at https://doi.org/10.1002/anie.201814573. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. application/pdf |
| spellingShingle | Science::Chemistry Block Copolymers Iodine Liu, Xu Wang, Chen-Gang Goto, Atsushi Polymer dispersity control by organocatalyzed living radical polymerization |
| title | Polymer dispersity control by organocatalyzed living radical polymerization |
| title_full | Polymer dispersity control by organocatalyzed living radical polymerization |
| title_fullStr | Polymer dispersity control by organocatalyzed living radical polymerization |
| title_full_unstemmed | Polymer dispersity control by organocatalyzed living radical polymerization |
| title_short | Polymer dispersity control by organocatalyzed living radical polymerization |
| title_sort | polymer dispersity control by organocatalyzed living radical polymerization |
| topic | Science::Chemistry Block Copolymers Iodine |
| url | https://hdl.handle.net/10356/137729 |
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