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Double Responsive Hydrogels based on Tertiary Amine Methacrylate Star Block Copolymers

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Published/Copyright: July 25, 2012
Zeitschrift für Physikalische Chemie
From the journal Zeitschrift für Physikalische Chemie Volume 226 Issue 7-8

Abstract

Double hydrophilic stimuli-responsive star block copolymers with poly(2-(dimethylamino)ethyl methacrylate) (PDMA) inner blocks and poly(2-(diethylamino)ethyl methacrylate) (PDEA) outer blocks were synthesized using ATRP. Different multifunctional initiators based on sugar scaffolds were employed in a core-first approach with sequential polymerization of both blocks yielding stars with 4 and 6 arms, respectively, and varying length of the PDEA outer block. The star block copolymers show pH- and temperature-responsive aggregation as revealed by dynamic light scattering and turbidimetry. The impact of pH, PDEA block length and arm number on the gelation behavior was investigated by tube inversion and rheology.

Keywords: Hydrogel; Stars; Star-Block Copolymer; ATRP; Double Responsive
* Correspondence address: Universität Bayreuth, Macromolecular Chemistry II, 95440 Bayreuth, Deutschland,
Published Online: 2012-7-25
Published in Print: 2012-8-1

© by Oldenbourg Wissenschaftsverlag, München, Germany

Articles in the same Issue

  1. Preface — An energetic life between soft matter and hard X-rays
  2. Optimizing the Sensitivity of FT-Rheology to Quantify and Differentiate for the First Time the Nonlinear Mechanical Response of Dispersed Beer Foams of Light and Dark Beer
  3. Adsorption of Spherical Polyelectrolyte Brushes: from Interactions to Surface Patterning
  4. Complexation of charged colloids with polyelectrolyte stars
  5. Charging and Aggregation of Positively Charged Colloidal Latex Particles in Presence of Multivalent Polycarboxylate Anions
  6. Spherical Polyelectrolyte Brushes on Colloidal Poly(butadiene) Particles
  7. Repulsive Forces between Spherical Polyelectrolyte Brushes in Salt-Free Solution
  8. Structure-Property Relations of Liquid Crystalline Gels with ABA-Triblock Copolymers as Gelators
  9. Direct-Imaging Cryo-SEM of Nanostructure Evolution in Didodecyldimethylammonium Bromide-Based Microemulsions
  10. Solubilisation of Oils of Different Polarity in Aqueous Solutions of Pluronic Triblock Copolymers
  11. Double Responsive Hydrogels based on Tertiary Amine Methacrylate Star Block Copolymers
  12. Coarse-Graining of Ionic Microgels: Theory and Experiment
  13. Non NIPAM Based Smart Microgels: Systematic Variation of the Volume Phase Transition Temperature by Copolymerization
  14. Temperature Controlled Activity of Lipase B from Candida Antarctica after Immobilization within p-NIPAM Microgel Particles
  15. Synthesis of PEG-Stabilized Fluoro-Acrylate Particles and Study of their Glass Transition in Aqueous Dispersion
  16. Probability Densities of a Forced Probe Particle in Glass: Results from Mode Coupling Theory and Simulations of Active Microrheology
  17. Molecular Order and Dynamics of Tris(2-ethylhexyl)phosphate Confined in Uni-Directional Nanopores
  18. The Structure of Fluids with Impurities
  19. Packing of Cylindrical Keggin-Type Polyoxometalate Hybrid Micelles as a Function of Aspect Ratio
  20. Au-TiO2 Yolk-Shell Particles for Photocatalysis Application
  21. Formfactors of Hollow and Massive Rectangular Parallelepipeds at Variable Degree of Anisometry
https://doi.org/10.1524/zpch.2012.0240
Keywords for this article
Hydrogel; Stars; Star-Block Copolymer; ATRP; Double Responsive

Articles in the same Issue

  1. Preface — An energetic life between soft matter and hard X-rays
  2. Optimizing the Sensitivity of FT-Rheology to Quantify and Differentiate for the First Time the Nonlinear Mechanical Response of Dispersed Beer Foams of Light and Dark Beer
  3. Adsorption of Spherical Polyelectrolyte Brushes: from Interactions to Surface Patterning
  4. Complexation of charged colloids with polyelectrolyte stars
  5. Charging and Aggregation of Positively Charged Colloidal Latex Particles in Presence of Multivalent Polycarboxylate Anions
  6. Spherical Polyelectrolyte Brushes on Colloidal Poly(butadiene) Particles
  7. Repulsive Forces between Spherical Polyelectrolyte Brushes in Salt-Free Solution
  8. Structure-Property Relations of Liquid Crystalline Gels with ABA-Triblock Copolymers as Gelators
  9. Direct-Imaging Cryo-SEM of Nanostructure Evolution in Didodecyldimethylammonium Bromide-Based Microemulsions
  10. Solubilisation of Oils of Different Polarity in Aqueous Solutions of Pluronic Triblock Copolymers
  11. Double Responsive Hydrogels based on Tertiary Amine Methacrylate Star Block Copolymers
  12. Coarse-Graining of Ionic Microgels: Theory and Experiment
  13. Non NIPAM Based Smart Microgels: Systematic Variation of the Volume Phase Transition Temperature by Copolymerization
  14. Temperature Controlled Activity of Lipase B from Candida Antarctica after Immobilization within p-NIPAM Microgel Particles
  15. Synthesis of PEG-Stabilized Fluoro-Acrylate Particles and Study of their Glass Transition in Aqueous Dispersion
  16. Probability Densities of a Forced Probe Particle in Glass: Results from Mode Coupling Theory and Simulations of Active Microrheology
  17. Molecular Order and Dynamics of Tris(2-ethylhexyl)phosphate Confined in Uni-Directional Nanopores
  18. The Structure of Fluids with Impurities
  19. Packing of Cylindrical Keggin-Type Polyoxometalate Hybrid Micelles as a Function of Aspect Ratio
  20. Au-TiO2 Yolk-Shell Particles for Photocatalysis Application
  21. Formfactors of Hollow and Massive Rectangular Parallelepipeds at Variable Degree of Anisometry
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