Kaizheng Zhu
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Kaizheng Zhu has a total of 16 co-authors. Here are the top co-authors by number of shared publications:
- Bo Nyström
Department of Chemistry, University of Oslo, Oslo, Norway
4 shared publications - Anne Røv-Johnsen
Department of Pharmacy, School of Pharmacy, University of Oslo, P O Box 1068, Blindern, N-0316 Oslo, Norway
1 shared publication - Gro Smistad
SiteDel Group, School of Pharmacy, University of Oslo, P. O. Box 1068, Blindern, 0316 Oslo, Norway
1 shared publication - Kenneth Dahl Knudsen
Institute for Energy Technology, P.O. box 40, N-2027 Kjeller, Norway
1 shared publication - Kristoffer Almdal
Technical University of Denmark
1 shared publication - Lennart Piculell
Division of Physical Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden
1 shared publication
Latest Publications
- 1 August 2017
- Published by Elsevier in Colloids and Surfaces B: Biointerfaces
- Vol. 156, 79-86
Liposomes coated with hydrophobically modified hydroxyethyl cellulose: Influence of hydrophobic chain length and degree of modification
- 1 August 2017
- Published by Elsevier in Colloids and Surfaces B: Biointerfaces
- Vol. 156, 79-86
Liposomes coated with hydrophobically modified hydroxyethyl cellulose: Influence of hydrophobic chain length and degree of modification
- 5 June 2014
- Published by Springer Nature in Journal of Materials Science
- Vol. 49 (17) , 6102-6110
Structure, swelling, and drug release of thermoresponsive poly(amidoamine) dendrimer–poly(N-isopropylacrylamide) hydrogels
- 5 June 2014
- Published by Springer Nature in Journal of Materials Science
- Vol. 49 (17) , 6102-6110
Structure, swelling, and drug release of thermoresponsive poly(amidoamine) dendrimer–poly(N-isopropylacrylamide) hydrogels
- 6 December 2012
- Published by Royal Society of Chemistry (RSC) in Soft Matter
- Vol. 9 (5) , 1540-1555
Micro- and nanophase separations in hierarchical self-assembly of strongly amphiphilic block copolymer-based ionic supramolecules
By a selective complexation between different alkyltrimethylammonium amphiphiles (C8, C12 and C16) and three different diblock copolymer systems of poly(styrene)-b-poly(methacrylic acid) at various grafting densities X (X = number of alkyl chains per acidic group of the poly(methacrylic acid) PMAA block), a class of ionic supramolecules are successfully synthesized whose molecular architecture consists of a poly(styrene) PS block (Linear block) covalently connected to a strongly amphiphilic comb-like block (AmphComb block), i.e. Linear-b-AmphComb. In the melt state, these ionic supramolecules can show simultaneous microphase (between Linear and AmphComb blocks) and nanophase (within the AmphComb blocks) separations. This leads to the formation of various structure-in-structure two-scale hierarchical self-assemblies, including S-in-SLL, S-in-SBCC, S-in-C, S-in-L and C-in-L, where S, SLL, SBCC, C and L stand for spherical, spherical in liquid-like state, spherical in body-centered-cubic arrangement, cylindrical and lamellar, respectively. Synchrotron small angle X-ray scattering (SAXS) and crossed polarizers, together with SAXS modelling analysis, were used for a detailed structural study of the samples. The morphology of the microphase separated state was mapped out on ‘master’ microdomain morphology diagrams as a function of the volume fraction of the AmphComb blocks (ΦAmphComb) and the compositional window of each microdomain morphology was determined. It was observed that, (i) within samples based on the same parent diblock copolymer system, the occurrence of a specific microdomain morphology is only dependent on the value of ΦAmphComb, regardless of the grafting density X and the length of the alkyl side-chains, and (ii) microdomain morphological boundaries occur at ΦAmphComb values of ∼0.20 (SLL/C and SBCC/C) and ∼0.28 (C/L). Finally, the specific influences of the strongly amphiphilic nature of the AmphComb blocks on the observed morphological and hierarchical behaviours of our system are discussed. For reference, stoichiometric strongly amphiphilic comb-like (AmphComb) ionic supramolecules, based on complexation between a homopolymer of PMAA and the various alkyltrimethylammonium amphiphiles, were prepared, which nanophase separated into S (C8) or C (C12 and C16) domains.
- 6 December 2012
- Published by Royal Society of Chemistry (RSC) in Soft Matter
- Vol. 9 (5) , 1540-1555
Micro- and nanophase separations in hierarchical self-assembly of strongly amphiphilic block copolymer-based ionic supramolecules
By a selective complexation between different alkyltrimethylammonium amphiphiles (C8, C12 and C16) and three different diblock copolymer systems of poly(styrene)-b-poly(methacrylic acid) at various grafting densities X (X = number of alkyl chains per acidic group of the poly(methacrylic acid) PMAA block), a class of ionic supramolecules are successfully synthesized whose molecular architecture consists of a poly(styrene) PS block (Linear block) covalently connected to a strongly amphiphilic comb-like block (AmphComb block), i.e. Linear-b-AmphComb. In the melt state, these ionic supramolecules can show simultaneous microphase (between Linear and AmphComb blocks) and nanophase (within the AmphComb blocks) separations. This leads to the formation of various structure-in-structure two-scale hierarchical self-assemblies, including S-in-SLL, S-in-SBCC, S-in-C, S-in-L and C-in-L, where S, SLL, SBCC, C and L stand for spherical, spherical in liquid-like state, spherical in body-centered-cubic arrangement, cylindrical and lamellar, respectively. Synchrotron small angle X-ray scattering (SAXS) and crossed polarizers, together with SAXS modelling analysis, were used for a detailed structural study of the samples. The morphology of the microphase separated state was mapped out on ‘master’ microdomain morphology diagrams as a function of the volume fraction of the AmphComb blocks (ΦAmphComb) and the compositional window of each microdomain morphology was determined. It was observed that, (i) within samples based on the same parent diblock copolymer system, the occurrence of a specific microdomain morphology is only dependent on the value of ΦAmphComb, regardless of the grafting density X and the length of the alkyl side-chains, and (ii) microdomain morphological boundaries occur at ΦAmphComb values of ∼0.20 (SLL/C and SBCC/C) and ∼0.28 (C/L). Finally, the specific influences of the strongly amphiphilic nature of the AmphComb blocks on the observed morphological and hierarchical behaviours of our system are discussed. For reference, stoichiometric strongly amphiphilic comb-like (AmphComb) ionic supramolecules, based on complexation between a homopolymer of PMAA and the various alkyltrimethylammonium amphiphiles, were prepared, which nanophase separated into S (C8) or C (C12 and C16) domains.