Synthesis, characterization, and modeling of ABC triblock terpolymers: the effect of block sequence

Aggeliki I. Triftaridou, Maria Vamvakaki, Costas S. Patrickios, L. Lue

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Four equimolar terpolymers comprising ten units from each of the monomers methoxy hexa(ethylene glycol) methacrylate (HEGMA), 2(dimethylamino)ethyl methacrylate (DMAEMA) and methyl methacrylate (MMA) were prepared by group transfer polymerization (GTP), and characterized by gel permeation chromatography (GPC) and proton nuclear magnetic resonance (H-1 NMR) spectroscopy to confirm size homogeneity and composition. These terpolymers were the three block sequence isomers, ABC, BAC and ACB, as well as the statistical isomer. Aqueous solutions of the terpolymers were characterized by dynamic light scattering and turbidimetry to determine the hydrodynamic sizes and cloud points. The results indicated micelle formation in the triblocks, and absence of micellization with the statistical terpolymer. in general, a strong dependence of the hydrodynamic size and cloud point on polymer architecture was observed. Monte Carlo simulations on non-aggregating isomeric terpolymers of similar structure also showed a strong dependence of the radius of gyration on polymer architecture.
LanguageEnglish
Pages133-138
Number of pages6
JournalMacromolecular Symposia
Volume183
Issue number1
DOIs
Publication statusPublished - 2002

Fingerprint

Terpolymers
synthesis
isomers
hydrodynamics
nuclear magnetic resonance
gel chromatography
proton magnetic resonance
Isomers
gyration
polymers
Polymers
Hydrodynamics
homogeneity
Nuclear magnetic resonance
glycols
micelles
ethylene
light scattering
polymerization
monomers

Keywords

  • triblock terpolymers
  • block sequence

Cite this

Triftaridou, Aggeliki I. ; Vamvakaki, Maria ; Patrickios, Costas S. ; Lue, L. / Synthesis, characterization, and modeling of ABC triblock terpolymers: the effect of block sequence. In: Macromolecular Symposia. 2002 ; Vol. 183, No. 1. pp. 133-138.
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abstract = "Four equimolar terpolymers comprising ten units from each of the monomers methoxy hexa(ethylene glycol) methacrylate (HEGMA), 2(dimethylamino)ethyl methacrylate (DMAEMA) and methyl methacrylate (MMA) were prepared by group transfer polymerization (GTP), and characterized by gel permeation chromatography (GPC) and proton nuclear magnetic resonance (H-1 NMR) spectroscopy to confirm size homogeneity and composition. These terpolymers were the three block sequence isomers, ABC, BAC and ACB, as well as the statistical isomer. Aqueous solutions of the terpolymers were characterized by dynamic light scattering and turbidimetry to determine the hydrodynamic sizes and cloud points. The results indicated micelle formation in the triblocks, and absence of micellization with the statistical terpolymer. in general, a strong dependence of the hydrodynamic size and cloud point on polymer architecture was observed. Monte Carlo simulations on non-aggregating isomeric terpolymers of similar structure also showed a strong dependence of the radius of gyration on polymer architecture.",
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Synthesis, characterization, and modeling of ABC triblock terpolymers: the effect of block sequence. / Triftaridou, Aggeliki I.; Vamvakaki, Maria; Patrickios, Costas S.; Lue, L.

In: Macromolecular Symposia, Vol. 183, No. 1, 2002, p. 133-138.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Synthesis, characterization, and modeling of ABC triblock terpolymers: the effect of block sequence

AU - Triftaridou, Aggeliki I.

AU - Vamvakaki, Maria

AU - Patrickios, Costas S.

AU - Lue, L.

PY - 2002

Y1 - 2002

N2 - Four equimolar terpolymers comprising ten units from each of the monomers methoxy hexa(ethylene glycol) methacrylate (HEGMA), 2(dimethylamino)ethyl methacrylate (DMAEMA) and methyl methacrylate (MMA) were prepared by group transfer polymerization (GTP), and characterized by gel permeation chromatography (GPC) and proton nuclear magnetic resonance (H-1 NMR) spectroscopy to confirm size homogeneity and composition. These terpolymers were the three block sequence isomers, ABC, BAC and ACB, as well as the statistical isomer. Aqueous solutions of the terpolymers were characterized by dynamic light scattering and turbidimetry to determine the hydrodynamic sizes and cloud points. The results indicated micelle formation in the triblocks, and absence of micellization with the statistical terpolymer. in general, a strong dependence of the hydrodynamic size and cloud point on polymer architecture was observed. Monte Carlo simulations on non-aggregating isomeric terpolymers of similar structure also showed a strong dependence of the radius of gyration on polymer architecture.

AB - Four equimolar terpolymers comprising ten units from each of the monomers methoxy hexa(ethylene glycol) methacrylate (HEGMA), 2(dimethylamino)ethyl methacrylate (DMAEMA) and methyl methacrylate (MMA) were prepared by group transfer polymerization (GTP), and characterized by gel permeation chromatography (GPC) and proton nuclear magnetic resonance (H-1 NMR) spectroscopy to confirm size homogeneity and composition. These terpolymers were the three block sequence isomers, ABC, BAC and ACB, as well as the statistical isomer. Aqueous solutions of the terpolymers were characterized by dynamic light scattering and turbidimetry to determine the hydrodynamic sizes and cloud points. The results indicated micelle formation in the triblocks, and absence of micellization with the statistical terpolymer. in general, a strong dependence of the hydrodynamic size and cloud point on polymer architecture was observed. Monte Carlo simulations on non-aggregating isomeric terpolymers of similar structure also showed a strong dependence of the radius of gyration on polymer architecture.

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