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Linear poly(alkyl ethylene imine) with varying side chain length: synthesis and physical properties

Hanneke ML Lambermont-Thijs, Lies Bonami UGent, Filip Du Prez UGent and Richard Hoogenboom UGent (2010) POLYMER CHEMISTRY. 1(5). p.747-754
abstract
The synthesis of a series of poly(alkyl ethylene imine) (PalkylEI) with varying side chain lengths of 1, 2, 3 and 10 carbon atoms as well as a benzyl side group was performed. A series of polymers was synthesized from a direct reduction reaction of the corresponding poly(2-oxazoline) while another series was prepared by (reductive) alkylation of linear poly(ethylene imine) (PEI). The thermal and solubility properties of the resulting polymers were investigated and compared to the starting poly(2-oxazoline)s in order to study the effects of removing the carbonyl from the polymer structure. H-1 NMR spectroscopy revealed quantitative formation of the PalkylEI, i.e. no residual signals of the poly(2-oxazoline) or linear PEI were observed. Thermal investigations revealed that the thermal transitions, melting and glass transition temperatures, significantly decreased after decarboxylation due to an increase in chain flexibility. Furthermore, solubility measurements indicated that the PalkylEIs are more hydrophobic compared to the corresponding poly(2-oxazoline)s, whereby poly(ethyl ethylene imine) revealed pH and temperature responsive solubility behavior in water.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
2-PHENYL-2-OXAZOLINE, 2-NONYL-2-OXAZOLINE, OXAZOLINES, 2-ETHYL-2-OXAZOLINE, POLY(2-OXAZOLINE)S, POLY(N-METHYLETHYLENIMINE), MICROWAVE-ASSISTED SYNTHESIS, POLYMERIZATION, COPOLYMERS, MIXTURES
journal title
POLYMER CHEMISTRY
Polym. Chem.
volume
1
issue
5
pages
747 - 754
Web of Science type
Article
Web of Science id
000279777100024
ISSN
1759-9954
DOI
10.1039/b9py00344d
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1060595
handle
http://hdl.handle.net/1854/LU-1060595
date created
2010-10-19 15:31:25
date last changed
2011-05-01 00:30:26
@article{1060595,
  abstract     = {The synthesis of a series of poly(alkyl ethylene imine) (PalkylEI) with varying side chain lengths of 1, 2, 3 and 10 carbon atoms as well as a benzyl side group was performed. A series of polymers was synthesized from a direct reduction reaction of the corresponding poly(2-oxazoline) while another series was prepared by (reductive) alkylation of linear poly(ethylene imine) (PEI). The thermal and solubility properties of the resulting polymers were investigated and compared to the starting poly(2-oxazoline)s in order to study the effects of removing the carbonyl from the polymer structure. H-1 NMR spectroscopy revealed quantitative formation of the PalkylEI, i.e. no residual signals of the poly(2-oxazoline) or linear PEI were observed. Thermal investigations revealed that the thermal transitions, melting and glass transition temperatures, significantly decreased after decarboxylation due to an increase in chain flexibility. Furthermore, solubility measurements indicated that the PalkylEIs are more hydrophobic compared to the corresponding poly(2-oxazoline)s, whereby poly(ethyl ethylene imine) revealed pH and temperature responsive solubility behavior in water.},
  author       = {Lambermont-Thijs, Hanneke ML and Bonami, Lies and Du Prez, Filip and Hoogenboom, Richard},
  issn         = {1759-9954},
  journal      = {POLYMER CHEMISTRY},
  keyword      = {2-PHENYL-2-OXAZOLINE,2-NONYL-2-OXAZOLINE,OXAZOLINES,2-ETHYL-2-OXAZOLINE,POLY(2-OXAZOLINE)S,POLY(N-METHYLETHYLENIMINE),MICROWAVE-ASSISTED SYNTHESIS,POLYMERIZATION,COPOLYMERS,MIXTURES},
  language     = {eng},
  number       = {5},
  pages        = {747--754},
  title        = {Linear poly(alkyl ethylene imine) with varying side chain length: synthesis and physical properties},
  url          = {http://dx.doi.org/10.1039/b9py00344d},
  volume       = {1},
  year         = {2010},
}

Chicago
Lambermont-Thijs, Hanneke ML, Lies Bonami, Filip Du Prez, and Richard Hoogenboom. 2010. “Linear Poly(alkyl Ethylene Imine) with Varying Side Chain Length: Synthesis and Physical Properties.” Polymer Chemistry 1 (5): 747–754.
APA
Lambermont-Thijs, H. M., Bonami, L., Du Prez, F., & Hoogenboom, R. (2010). Linear poly(alkyl ethylene imine) with varying side chain length: synthesis and physical properties. POLYMER CHEMISTRY, 1(5), 747–754.
Vancouver
1.
Lambermont-Thijs HM, Bonami L, Du Prez F, Hoogenboom R. Linear poly(alkyl ethylene imine) with varying side chain length: synthesis and physical properties. POLYMER CHEMISTRY. 2010;1(5):747–54.
MLA
Lambermont-Thijs, Hanneke ML, Lies Bonami, Filip Du Prez, et al. “Linear Poly(alkyl Ethylene Imine) with Varying Side Chain Length: Synthesis and Physical Properties.” POLYMER CHEMISTRY 1.5 (2010): 747–754. Print.