SYSTHESIS OF DOUBLE-HYDROPHILIC CORE-SHELL TYPE MULTIARM STAR COPOLYMER POLYETHYLENIMINE-<italic style="font-style: italic">block</italic>-POLY(2-HYDROXYETHYL METHACRYLATE)

Qiang Tang; Fa Cheng; Jin Cui; Yu Chen

doi:10.1007/s10118-013-1298-4

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SYSTHESIS OF DOUBLE-HYDROPHILIC CORE-SHELL TYPE MULTIARM STAR COPOLYMER POLYETHYLENIMINE-block-POLY(2-HYDROXYETHYL METHACRYLATE)

PAPER | Updated：2023-01-03

- SYSTHESIS OF DOUBLE-HYDROPHILIC CORE-SHELL TYPE MULTIARM STAR COPOLYMER POLYETHYLENIMINE-block-POLY(2-HYDROXYETHYL METHACRYLATE)
- Chinese Journal of Polymer Science Vol. 31, Issue 7, Pages: 1046-1055(2013)
- Affiliations：
  
  a.School of Chemical and Environmental Engineering, Hubei University of Technology, Wuhan 430068, China
  b.Department of Chemistry, School of Sciences, Tianjin University, Tianjin 300072, China
  c.National Foodstuff Inspection Center, Tianjin Product Quality Inspection Technology Research Institute, Tianjin 300384, China
- Author bio：
  
  **Yu Chen (陈宇), E-mail: chenyu@tju.edu.cn
- Funds：
- DOI：10.1007/s10118-013-1298-4
  CLC：
- Received：18 December 2012，
  
  Revised：2013-02-06，
  
  Accepted：22 February 2013，
  
  Published：2013-07
- Accepted：
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Qiang Tang, Fa Cheng, Jin Cui, et al. SYSTHESIS OF DOUBLE-HYDROPHILIC CORE-SHELL TYPE MULTIARM STAR COPOLYMER POLYETHYLENIMINE-block-POLY(2-HYDROXYETHYL METHACRYLATE)[J]. Chinese Journal of Polymer Science, 2013, 31(7): 1046-1055. DOI: 10.1007/s10118-013-1298-4.
DOI：

Qiang Tang, Fa Cheng, Jin Cui, et al. SYSTHESIS OF DOUBLE-HYDROPHILIC CORE-SHELL TYPE MULTIARM STAR COPOLYMER POLYETHYLENIMINE-block-POLY(2-HYDROXYETHYL METHACRYLATE)[J]. Chinese Journal of Polymer Science, 2013, 31(7): 1046-1055. DOI: 10.1007/s10118-013-1298-4. DOI：

摘要

Abstract

Multiarm star block copolymers hyperbranched polyethylenimine-

-poly(2-hydroxyethyl methacrylate) (HPEI-

-PHEMA) with average 28 PHEMA arms have been prepared by atom transfer radical polymerization (ATRP) of HEMA in a mixed solvent of methanol and water using a core-first strategy. The hyperbranched macroinitiator employed was prepared on the basis of well-defined hyperbranched polyethylenimine with

of 1.04 by amidation with 2-bromo-isobutyryl bromide. The polymerization condition was optimized to prepare star copolymers with narrow dispersity

and the variables included the volume ratio of methanol to water

the molar ratio of initiating site to CuCl and the molar ratio of [CuCl]:[CuBr2]

. Under the optimized polymerization condition

the lowest

value of the obtained star copolymers was around 1.3. Kinetic analysis showed that an induction period existed in the polymerization of HEMA. After this induction period

a linear dependence of ln([M]

/[M]

) on time was observed. The obtained HPEI-

-PHEMA could adsorb hydrophilic molecules. The comparison with the star copolymer with hydrophobic core and hydrophilic PHEMA shell verified that both the hydrophilic core and shell could host the hydrophilic guests

but the amidated HPEI core was more effective than the PHEMA shell.

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SYSTHESIS OF DOUBLE-HYDROPHILIC CORE-SHELL TYPE MULTIARM STAR COPOLYMER POLYETHYLENIMINE-block-POLY(2-HYDROXYETHYL METHACRYLATE)

DOI：10.1007/s10118-013-1298-4

摘要

Abstract

关键词

Keywords

references