RAFT 分散聚合诱导自组装制备 PDMAs-PSx 嵌段共聚物纳米颗粒

doi:10.12066/j.issn.1007-2861.2166

Abstract

Abstract:

Reversible addition-fragmentation-chain transfer (RAFT) polymerization-induced self-assembly (PISA) is a versatile and powerful strategy for preparing block copolymer nanoparticles with specific morphologies. Ethanol was used for the RAFT dispersion polymerisation of styrene (St) at 70 $^\circ$C. PDMA$_{23}$ and PDMA$_{38}$ were chosen as macromolecular chain transfer agents (CTAs). The transformation of the morphologies was altered by varying the degree of polymerizations (DPs). The experimental results showed that spheres, worms, vesicles, and compound vesicles were obtained using PDMA$_{23 }$ as the CTA. However, only well-distributed spherical nanoparticles were obtained when PDMA$_{38 }$was employed as the CTA.

Key words: reversible addition-fragmentation-chain transfer (RAFT) dispersion polymerization, polymerization-induced self-assembly (PISA), PDMA$_{s}$-PS$_{x }$ nanoparticles

CLC Number:

TQ316.3

LIANG Haiyang, YANG Yongqi, ZHANG Ling. Preparation of PDMA_s-PS_x block copolymer nanoparticles by RAFT dispersion PISA[J]. Journal of Shanghai University（Natural Science Edition）, 2021, 27(4): 741-748.

Figures/Tables 7

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References 28

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Preparation of PDMA_s-PS_x block copolymer nanoparticles by RAFT dispersion PISA

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Preparation of PDMA_s-PS_x block copolymer nanoparticles by RAFT dispersion PISA