RAFT Dispersion Polymerization of Styrene in Supercritical CO2

doi:10.7503/cjcu20130006

Abstract

Abstract:

A block copolymer polydimethyllsiloxane-b-polystyrene(PDMS-b-PS) was prepared by reversible addition fragmentation chain transfer(RAFT) polymerization of styrene in supercritical CO₂(scCO₂), using polydimethylsiloxane terminated by trithiocarbonate(PDMS-TTC) as a macromolecular chain transfer agent. The polymerization reaction kinetics, composition, molecular weight and morphology of the product were investigated by FTIR, ¹H NMR, GPC and SEM. Since PDMS chain segments could be dissolved in scCO₂ while PS segments were insoluble, the polymerization was a RAFT dispersion polymerization using the block copolymer itself as a dispersion stabilizer, and the resultant products were spherical particles with more uniform particle size, which was proved by SEM characterization.

Key words: Reversible addition fragmentation chain transfer(RAFT) polymerization, Supercritical CO₂, Dispersion polymerization, Block copolymer

CLC Number:

O631

TrendMD:

LIU Xiao-Wei, LI Hui, ZHAO Zhen, MIAO Xia-Ran, HAN Zhe-Wen. RAFT Dispersion Polymerization of Styrene in Supercritical CO₂[J]. Chem. J. Chinese Universities, 2013, 34(6): 1536.

[1]	FAN Juanjuan, HAN Yuanyuan, CUI Jie. Monte Carlo Simulation of the Transformation Control of ABC Triblock Copolymer Micelles from Multicompartment Structure to Multicore Structure [J]. Chem. J. Chinese Universities, 2021, 42(3): 857.
[2]	LI Boxin, YANG Junge, YIN Dezhong, GAO Chengqian, ZHANG Qiuyu. Preparation of Large-sized Microencapsulated Phase Change Materials Through Pickering Emulsion Stabilized by Monodisperse Polymer Microspheres [J]. Chem. J. Chinese Universities, 2020, 41(9): 2085.
[3]	SHI Xiaoyu, WANG Songmeng, LIU Lingyan, CHANG Weixing, LI Jing. Controllable Synthesis of Amphiphilic Block Copolymer PMnEOS-b-PAA and co-Assembly Morphologies of PMDEOS-b-PAA/PS-b-PAA [J]. Chem. J. Chinese Universities, 2020, 41(11): 2545.
[4]	WANG Lin, ZHANG Yanhui, Arzugul Muslim, LAN Haidie. Morphology and Size Regulation of Polyaniline Induced by PS-b-P2VP as Template and Its Electrochemical Characters [J]. Chem. J. Chinese Universities, 2019, 40(8): 1748.
[5]	FENG Wenya, QIAO Juan, QI Li, LI Zhiwei. Sepatation of Antipyretic Analgesics by CapillaryElectrochromatography with Block Copolymer Coating^† [J]. Chem. J. Chinese Universities, 2018, 39(8): 1640.
[6]	ZHAO Junqiang, YAN Caixia, CHEN Ze, YANG Ning, FENG Xia, ZHAO Yiping, CHEN Li. Synthesis and Self-assembly Properties of Intracellular Redox Bioresponsive Block Copolymers with Hepatoma-targeting Groups^† [J]. Chem. J. Chinese Universities, 2018, 39(7): 1592.
[7]	LI Aiju, WANG Yuxi, LU Shaoyong, LIU Kun. Ligand Exchange of Gold Nanoparticles with Thiol-terminated Polystyrene^† [J]. Chem. J. Chinese Universities, 2018, 39(3): 552.
[8]	RONG Jingjing,MA Lan,ZHU Youliang,HUANG Yineng,SUN Zhaoyan. Simulation of Perforated Lamelar Structures of Diblock Copolymer Induced by Surface Patterns^† [J]. Chem. J. Chinese Universities, 2018, 39(12): 2805.
[9]	ZHANG Yixin, WANG Mengxue, ZHANG Zheyuan, MI Puke, WANG Tinglan. Polyethylene-b-poly(ethylene/1-octene) Block Copolymer Prepared via Novel Dinuclear FI/Nickel(Ⅱ) α-Diiminecatalytic Systems [J]. Chem. J. Chinese Universities, 2017, 38(8): 1497.
[10]	LU Zhiwei, CHEN Shun, JU Yanyun, ZHANG Yang, XIONG Chuanxi, DONG Lijie. Synthesis and Properties of PS-b-P(DMS-stat-VMS) Block Copolymer [J]. Chem. J. Chinese Universities, 2017, 38(8): 1484.
[11]	DONG Xiaoming, YUAN Baoming, CHEN Bingpeng, HE Chaoliang, WANG Jincheng, CHEN Xuesi. In vitro Antibacterial Activity of PLGA-PEG-PLGA Thermosensitive Hydrogels Loaded with Vancomycin [J]. Chem. J. Chinese Universities, 2017, 38(5): 866.
[12]	WANG Xiaoqing, LING Jun, SHEN Zhiquan. Synthesis and Self-assembly of Thermoplastic Elastomer Poly(ε-decalactone)-Poly(L-lactide)-PEG with Rare Earth Catalyst^† [J]. Chem. J. Chinese Universities, 2016, 37(6): 1182.
[13]	WANG Yingying, CUI Jie, HAN Yuanyuan, JIANG Wei, SUN Yingchun. Monte Carlo Simulation on Self-assembly of AB Diblock Copolymers/Nanoparticles Complex Confined in Parallel Walls^† [J]. Chem. J. Chinese Universities, 2016, 37(5): 1010.
[14]	ZHANG Lixin, WANG Jintao, YANG Yongfang, ZHAO Hanying. Novel Method of Preparation of Diblock Copolymers with Disulfide Bonds at Junction Points^† [J]. Chem. J. Chinese Universities, 2016, 37(1): 161.
[15]	ZHANG Lili, CHEN Qiaoyue, ZHOU Hengwei, SHI Tongfei, HUANG Yineng. Influences of Topological Chain Structures to the Crystallization of Block Copolymers^† [J]. Chem. J. Chinese Universities, 2015, 36(9): 1832.

RAFT Dispersion Polymerization of Styrene in Supercritical CO₂

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments