Amphiphilic Dendrimer-like Copolymers with High Chain Density by Living Anionic Polymerization

Ke Zheng; Jun-Po He

doi:10.1007/s10118-019-2247-7

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Amphiphilic Dendrimer-like Copolymers with High Chain Density by Living Anionic Polymerization

ARTICLE | Updated：2021-02-18

- Amphiphilic Dendrimer-like Copolymers with High Chain Density by Living Anionic Polymerization
- Chinese Journal of Polymer Science Vol. 37, Issue 9, Pages: 875-883(2019)
- Affiliations：
  
  State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
- Author bio：
  
  jphe@fudan.edu.cn
- Funds：
- DOI：10.1007/s10118-019-2247-7
  CLC：
- Received：09 January 2019，
  
  Revised：2019-2-25，
  
  Accepted：01 March 2019，
  
  Online First：12 April 2019，
  
  Published：2019-09
- Accepted：
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Citation: Zheng, K.; He, J. P. Amphiphilic dendrimer-like copolymers with high chain density by living anionic polymerization. Chinese J. Polym. Sci. 2019, 37, 875–883

Ke Zheng, Jun-Po He. Amphiphilic Dendrimer-like Copolymers with High Chain Density by Living Anionic Polymerization[J]. Chinese Journal of Polymer Science, 2019, 37(9): 875-883.
Citation: Zheng, K.; He, J. P. Amphiphilic dendrimer-like copolymers with high chain density by living anionic polymerization. Chinese J. Polym. Sci. 2019, 37, 875–883 DOI： 10.1007/s10118-019-2247-7.

Ke Zheng, Jun-Po He. Amphiphilic Dendrimer-like Copolymers with High Chain Density by Living Anionic Polymerization[J]. Chinese Journal of Polymer Science, 2019, 37(9): 875-883. DOI： 10.1007/s10118-019-2247-7.

摘要

Abstract

We report here a method for the preparation of amphiphilic dendrimer-like copolymers with dendritic polystyrene (PS) core and protonated poly(2-vinyl pyridine) (P2VP) or poly(methacrylic acid) (PMAA) shell. The method employed the efficient coupling reaction of anionic living polymer chains and chlorosilane. The synthesis started from a functionalized 3

generation dendritic polystyrene

G3PS-

-SiCl

used as the precursor. The dendrimer-like copolymer of styrene and 2-vinyl pyridine

G3PS-

-P2VP

was synthesized by direct coupling of living P2VPLi to the precursor. The dendrimer-like copolymer of styrene and

tert

-butyl methacrylate

G3PS-

-P

BMA

was synthesized by an indirect procedure in which a living polymer containing mainly P

BMA segment was attached to the precursor. Both methods resulted in the formation of dendrimer-like copolymers with the high molecular weights (up to 8.5 × 10

Da)

large molecular sizes (diameter up to 73 nm)

and dense shells (number of arms up to 1300). These products

G3PS-

-P2VP and G3PS-

-P

BMA

were protonated with trifluoroacetic acid and acidic hydrolyzed

respectively. After transformation

amphiphilic dendrimer-like copolymers

G3PS-

-P2VPH

and G3PS-

-PMAA

were obtained. Preliminary results on the solution properties of the amphiphilic products were presented.

关键词

Keywords

references

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