Browsing by Author "Patrickios, Costas S."
Now showing items 21-40 of 170
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Article
Biosourced amphiphilic degradable elastomers of poly(glycerol sebacate): Synthesis and network and oligomer characterization
Kafouris, Demetris; Kossivas, Fotis; Constantinides, Christakis; Nguyễn, Như Quỳnh; Wesdemiotis, Chrystostomos; Patrickios, Costas S. (2013)Glycerol (G, a triol) and sebacic acid (S, an α,ω-dicarboxylic acid) were condensed in the bulk to obtain poly(glycerol sebacate) (PGS) cross-linked elastomers which were characterized in terms of their swelling, thermal, ...
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Article
Block Methacrylic Polyampholytes as Protein Displacers in Ion‐Exchange Chromatography
Patrickios, Costas S.; Gadam, S. D.; Cramer, S. M.; Hertler, Walter R.; Hatton, T. Alan (1995)Low molecular weight methacrylic triblock copolymers bearing a block of negatively charged (adsorbing) residues, a sequence of positively charged (repelling) units, and a middle neutral hydrophobic block were utilized ...
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Article
Cationic amphiphilic model networks based on symmetrical ABCBA pentablock terpolymers: Synthesis, characterization, and modelling
Triftaridou, Aggeliki I.; Vamvakaki, Maria; Patrickios, Costas S. (2007)Eight isomeric networks based on equimolar terpolymers were synthesized using group transfer polymerization (GTP) and were characterized in terms of their swelling properties. Two hydrophilic monomers, the nonionic methoxy ...
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Article
Cationic amphiphilic model networks: Synthesis by group transfer polymerization and characterization of the degree of swelling
Simmons, M. R.; Yamasaki, E. N.; Patrickios, Costas S. (2000)Group transfer polymerization (GTP) was applied to prepare model networks based on 2-(dimethylamino)ethyl methacrylate (DMAEMA) and methyl methacrylate (MMA). The flexibility of GTP allowed the synthesis of three isomeric ...
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Article
Cationic double-hydrophilic model networks: Synthesis, characterization, modeling and protein adsorption studies
Loizou, Elena; Triftaridou, Aggeliki I.; Georgiou, Theoni K.; Vamvakaki, Maria; Patrickios, Costas S. (2003)Group transfer polymerization (GTP) was used for the preparation of eight networks based on two hydrophilic monomers, 2-(dimethylamino)ethyl methacrylate (DMAEMA) and poly(ethylene glycol) methacrylate (PEGMA). Ethylene ...
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Article
Cationic homopolymer model networks and star polymers: Synthesis by group transfer polymerization and characterization of the aqueous degree of swelling
Simmons, M. R.; Yamasaki, E. N.; Patrickios, Costas S. (2000)A series of hydrophilic model networks based on homopolymers of a weak base were prepared using group transfer polymerization (GTP) and characterized in terms of their aqueous degree of swelling as a function of pH. This ...
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Article
Cationic star polymer siRNA transfectants interconnected with a piperazine-based cationic cross-linker
Pafiti, Kyriaki S.; Patrickios, Costas S.; Georgiou, Theoni K.; Yamasaki, E. N.; Mastroyiannopoulos, Nikolaos P.; Phylactou, Leonidas A. (2012)Cationic star polymers of 2-(dimethylamino)ethyl methacrylate (DMAEMA) were prepared via the "arm-first" method under group transfer polymerization (GTP) conditions, and were interconnected using a novel, hydrophilic, ...
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Article
Cationic telechelic polyelectrolytes: Synthesis by group transfer polymerization and self-organization in aqueous media
Gotzamanis, G. T.; Tsitsilianis, C.; Hadjiyannakou, Stella C.; Patrickios, Costas S.; Lupitskyy, R.; Minko, S. (2006)ABA triblock copolymers comprising a relative long poly(2-(dimethylamino) ethyl methacrylate) end-capped by short poly(methyl methacrylate) blocks (PMMA-b-PDMAEMA-b-PMMA) were synthesized using group transfer polymerization ...
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Book
Characterisation of the adsorption affinity parameters of ionic oligomers by anion-exchange chromatography
Khan, Asad R. [Main author]; Patrickios, Costas S.; UMIST, Chemical Engineering (UMIST, 1997)
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Book Chapter
Cleavable Dimethacrylate-end-linked Amphiphilic Polymer Co-networks Prepared Using Degradable, Hemiacetal Ester Group-containing Bifunctional Initiators
Patrickios, Costas S.; Rikkou-Kalourkoti, Maria (Royal Society of Chemistry, 2020)This chapter presents the synthesis, characterisation and degradation of amphiphilic polymer co-networks (APCNs) based on dimethacrylate-end-linked linear amphiphilic ABA triblock copolymers prepared using labile bifunctional ...
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Article
A cleavable network based on crosslinked star polymers containing acid-labile diacetal crosslinks: Synthesis, characterization and hydrolysis
Themistou, Efrosyni; Patrickios, Costas S. (2008)A hydrolyzable model network comprising interconnected star polymers was prepared by the sequential group transfer polymerization of methyl methacrylate and the acid-labile diacetalbased dimethacrylate crosslinker ...
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Article
Complex Hydrogels Based on Multiply Interpenetrated Polymer Networks: Enhancement of Mechanical Properties via Network Multiplicity and Monomer Concentration
Panteli, Panayiota A.; Patrickios, Costas S. (2018)We present the preparation and study of the compressive mechanical and swelling properties of multiply interpenetrated, from double to quintuple (5-fold), polymeric hydrogels based on N,N-dimethylacrylamide (DMAAm) ...
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Article
Controlled synthesis of coordination block copolymers with β-dicarbonyl ligating segment [5]
Schlaad, H.; Krasia‐Christoforou, Theodora; Patrickios, Costas S. (2001)
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Article
A correction to the calculation of the Gibbs free energy of adsorption for biomolecules in ion-exchange systems
Patrickios, Costas S.; Yamasaki, E. N. (1997)We wish to propose a correction to the methodology introduced by Gerstner et al. [J.A. Gerstner, J.A. Bell, S.M. Cramer, Biophys. Chem. 52 (1994) 97-106] for the calculation of Gibbs free energies of adsorption of biomolecules ...
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Article
CORRECTIONS: Diblock, ABC Triblock, and Random Methacrylic Polyampholytes: Synthesis by Group Transfer Polymerization and Solution Behavior (Macromolecules (1994) 27(4) (930–937))
Patrickios, Costas S.; Hertler, Walter R.; Abbott, Nicholas L.; Hatton, T. Alan (1994)
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Article
Covalent amphiphilic polymer networks
Patrickios, Costas S.; Georgiou, Theoni K. (2003)The recent literature on chemically cross-linked amphiphilic polymer networks is reviewed. The main subjects covered are network synthesis, characterization, modeling and applications. Special mention is made to more modern ...
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Article
Crosslink nature in Cr(III)-polyacrylamide gels
Vamvakaki, Maria; Yamasaki, E. N.; Hadjiyannakou, Stella C.; Patrickios, Costas S. (2001)The equilibrium constants of various candidates for the crosslinking reaction between chromium(III) and partly hydrolysed polyacrylamide have been calculated. For this purpose use has been made of a) the crosslinking index ...
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Article
Degradable amphiphilic end-linked conetworks with aqueous degradation rates determined by polymer topology
Rikkou-Kalourkoti, Maria D.; Loizou, Elena; Porcar, L.; Butler, P.; Patrickios, Costas S. (2009)Degradable amphiphilic conetworks, based on end-linked amphiphilic ABA triblock copolymers with a labile fragment in the middle, were synthesized by sequential group transfer polymerization (GTP) of monomers and cross-linker, ...
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Article
A degradable atom transfer radical polymerization inimer: Synthesis, polymerization, and cleavage of the resulting polymer products
Elladiou, Marios; Patrickios, Costas S. (2017)A novel degradable inimer for atom transfer radical polymerization (ATRP), 2-(6-(2-((2-bromo-2-methylpropanoyl)oxy)ethyl)pyridin-2-yl)ethyl methacrylate (PyDEBrMΑ), was synthesized by the two-step esterification of ...
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Article
Degradable polymer networks and star polymers based on mixtures of two cleavable dimethacrylate crosslinkers: Synthesis, characterization, and degradation
Themistou, Efrosyni; Patrickios, Costas S. (2009)Mixtures of two cleavable dimethacrylate crosslinkers, the hydrolyzable di(methacryloyloxy-1-ethoxy)methane (DMOEM) and the thermolyzable 1,1-ethylenediol dimethacrylate (EDDMA), were used for the preparation of neat ...