One-Step Photocontrolled Polymerization-Induced Self-Assembly (Photo-PISA) by Using In Situ Bromine-Iodine Transformation Reversible-Deactivation Radical Polymerization

Li, Haihui; Xu, Qinghua; Xu, Xiang; Zhang, Lifen; Cheng, Zhenping; Zhu, Xiulin

doi:10.3390/polym12010150

Open AccessArticle

One-Step Photocontrolled Polymerization-Induced Self-Assembly (Photo-PISA) by Using In Situ Bromine-Iodine Transformation Reversible-Deactivation Radical Polymerization

by

Haihui Li

^†,

Qinghua Xu

^†,

Xiang Xu

^†,

Lifen Zhang

^*

,

Zhenping Cheng

^* and

Xiulin Zhu

State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-ai Road, Suzhou 215123, China

^*

Authors to whom correspondence should be addressed.

^†

Haihui Li, Qinghua Xu and Xiang Xu contributed equally to this work.

Polymers 2020, 12(1), 150; https://doi.org/10.3390/polym12010150

Submission received: 10 December 2019 / Revised: 31 December 2019 / Accepted: 6 January 2020 / Published: 7 January 2020

(This article belongs to the Section Polymer Chemistry)

Download

Browse Figures

Versions Notes

Abstract

Polymerization-induced self-assembly (PISA) has become an effective strategy to synthesize high solid content polymeric nanoparticles with various morphologies in situ. In this work, one-step PISA was achieved by in situ photocontrolled bromine-iodine transformation reversible-deactivation radical polymerization (hereinafter referred to as Photo-BIT-RDRP). The water-soluble macroinitiator precursor α-bromophenylacetate polyethylene glycol monomethyl ether ester (mPEG_1k-BPA) was synthesized in advance, and then the polymer nanomicelles (mPEG_1k-b-PBnMA and mPEG_1k-b-PHPMA, where BnMA means benzyl methacrylate and HPMA is hydroxypropyl methacrylate) were successfully formed from a PISA process of hydrophobic monomer of BnMA or HPMA under irradiation with blue LED light at room temperature. In addition, the typical living features of the photocontrolled PISA process were confirmed by the linear increase of molecular weights of the resultant amphiphilic block copolymers with monomer conversions and narrow molecular weight distributions (M_w/M_n < 1.20). Importantly, the photocontrolled PISA process is realized by only one-step method by using in situ photo-BIT-RDRP, which avoids the use of transition metal catalysts in the traditional ATRP system, and simplifies the synthesis steps of nanomicelles. This strategy provides a promising pathway to solve the problem of active chain end (C-I) functionality loss in two-step polymerization of BIT-RDRP.

Keywords: photopolymerization; reversible-deactivation radical polymerization (RDRP); polymerization-induced self-assembly (PISA); bromine-iodine transformation; photocontrolled

Graphical Abstract

Share and Cite

MDPI and ACS Style

Li, H.; Xu, Q.; Xu, X.; Zhang, L.; Cheng, Z.; Zhu, X. One-Step Photocontrolled Polymerization-Induced Self-Assembly (Photo-PISA) by Using In Situ Bromine-Iodine Transformation Reversible-Deactivation Radical Polymerization. Polymers 2020, 12, 150. https://doi.org/10.3390/polym12010150

AMA Style

Li H, Xu Q, Xu X, Zhang L, Cheng Z, Zhu X. One-Step Photocontrolled Polymerization-Induced Self-Assembly (Photo-PISA) by Using In Situ Bromine-Iodine Transformation Reversible-Deactivation Radical Polymerization. Polymers. 2020; 12(1):150. https://doi.org/10.3390/polym12010150

Chicago/Turabian Style

Li, Haihui, Qinghua Xu, Xiang Xu, Lifen Zhang, Zhenping Cheng, and Xiulin Zhu. 2020. "One-Step Photocontrolled Polymerization-Induced Self-Assembly (Photo-PISA) by Using In Situ Bromine-Iodine Transformation Reversible-Deactivation Radical Polymerization" Polymers 12, no. 1: 150. https://doi.org/10.3390/polym12010150

APA Style

Li, H., Xu, Q., Xu, X., Zhang, L., Cheng, Z., & Zhu, X. (2020). One-Step Photocontrolled Polymerization-Induced Self-Assembly (Photo-PISA) by Using In Situ Bromine-Iodine Transformation Reversible-Deactivation Radical Polymerization. Polymers, 12(1), 150. https://doi.org/10.3390/polym12010150

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Menu

One-Step Photocontrolled Polymerization-Induced Self-Assembly (Photo-PISA) by Using In Situ Bromine-Iodine Transformation Reversible-Deactivation Radical Polymerization

Abstract

Share and Cite

Article Metrics

Article Access Statistics

Further Information

Guidelines

MDPI Initiatives

Follow MDPI