Browsing by Author "Vamvakaki, Maria"
Now showing items 1-20 of 22
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Article
Amphiphilic diblock and ABC triblock methacrylate copolymers: Synthesis and aqueous solution characterization
Triftaridou, Aggeliki I.; Vamvakaki, Maria; Patrickios, Costas S. (2002)Three isomeric, linear, equimolar, amphiphilic ABC triblock copolymers comprising methyl methacrylate (MMA, nonionic hydrophobic), 2-(dimethylamino)ethyl methacrylate, (DMAEMA, ionizable hydrophilic) and hexa(ethylene ...
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Article
Amphiphilic networks based on cross-linked star polymers: A small-angle neutron scattering study
Vamvakaki, Maria; Patrickios, Costas S.; Lindner, P.; Gradzielski, M. (2007)Four different polymer model networks of identical molecular architecture based on cross-linked stars (CLSs) were investigated by small-angle neutron scattering (SANS). One of the model networks was a hydrophilic homopolymer ...
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Article
Binding of sodium dodecyl sulfate to linear and star homopolymers of the nonionic poly(methoxyhexa(ethylene glycol) methacrylate) and the polycation poly(2-(dimethylamino)ethyl methacrylate): Electromotive force, isothermal titration calorimetry, surface tension, and small-angle neutron scattering measurements
Couderc-Azouani, S.; Sidhu, J.; Georgiou, Theoni K.; Charalambous, Despina C.; Vamvakaki, Maria; Patrickios, Costas S.; Bloor, D. M.; Penfold, J.; Holzwarth, J. F.; Wyn-Jones, E. (2004)The process of binding of sodium dodecyl sulfate (SDS) to various linear and star polymers of the nonionic methoxyhexa(ethylene glycol) methacrylate (PMHEGMA) and the ionic 2-(dimethylamino)ethyl methacrylate (PDMAEMA) was ...
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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 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
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
Microphase separation under constraints: A molecular thermodynamic theory for polyelectrolytic amphiphilic model networks in water
Georgiou, Theoni K.; Vamvakaki, Maria; Patrickios, Costas S. (2004)The aqueous aggregation behavior of covalent model networks comprising amphiphilic ABA triblock copolymers with hydrophilic ionic mid-blocks and hydrophobic non-ionic end-blocks was studied by formulating a molecular ...
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Conference Object
Nano-engineered model networks: Synthesis, characterization and modeling
Georgiou, Theoni K.; Themistou, Efrosyni; Triftaridou, Aggeliki I.; Hadjiyannakou, Stella C.; Vamvakaki, Maria; Patrickios, Costas S. (Polymer Preprints ACS, 2002)
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Article
Nanoscopic cationic methacrylate star homopolymers: Synthesis by group transfer polymerization, characterization and evaluation as transfection reagents
Georgiou, Theoni K.; Vamvakaki, Maria; Patrickios, Costas S.; Yamasaki, E. N.; Phylactou, Leonidas A. (2004)Seven star polymers with degrees of polymerization (DPs) of the arms from 10 to 100 and dimensions in the nanometer range were prepared using sequential group transfer polymerization of 2-(dimethylamino)-ethyl methacrylate ...
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Article
Polyelectrolytic amphiphilic model networks in water: A molecular thermodynamic theory for their microphase separation
Vamvakaki, Maria; Patrickios, Costas S. (2002)The aqueous aggregation behavior of networks comprising hydrophilic ionic blocks and hydrophobic nonionic blocks was studied by formulating a molecular thermodynamic theory, which considers the Gibbs free energies of the ...
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Article
Synthesis and aqueous solution characterization of novel diblock polyampholytes containing imidazole
Hadjikallis, G.; Hadjiyannakou, Stella C.; Vamvakaki, Maria; Patrickios, Costas S. (2002)A series of diblock copolymers of 2-(1-imidazolyl)ethyl methacrylate and tetrahydropyranyl methacrylate (THPMA) were synthesized by group transfer polymerization using propylene carbonate rather than tetrahydrofuran as the ...
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Article
Synthesis and characterization of double-hydrophilic model networks based on cross-linked star polymers of poly(ethylene glycol) methacrylate and methacrylic acid
Georgiades, Savvas N.; Vamvakaki, Maria; Patrickios, Costas S. (2002)A series of model networks based on cross-linked star polymers of poly(ethylene glycol) methacrylate (PEGMA) and tetrahydropyranyl methacrylate (THPMA), a protected form of methacrylic acid (MAA), were synthesized by group ...
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Article
Synthesis and characterization of electrolytic amphiphilic model networks based on cross-linked star polymers: Effect of star architecture
Vamvakaki, Maria; Patrickios, Costas S. (2002)Amphiphilic model networks of a new structure, that of cross-linked "in-out" star copolymers, were synthesized by a one-pot preparation using group-transfer polymerization. The networks comprised hydrophobic methyl ...
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Article
Synthesis and characterization of novel networks with nano-engineered structures: Cross-linked star homopolymers
Vamvakaki, Maria; Hadjiyannakou, Stella C.; Loizidou, Efi; Patrickios, Costas S.; Armes, S. P.; Billingham, N. C. (2001)Group transfer polymerization was used for the one-pot preparation of a network structure comprising cross-linked star homopolymers. The structure contains many dangling chains (constituting the arms of the primary stars), ...
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Article
Synthesis and characterization of polyampholytic model networks: Effects of polymer composition and architecture
Demosthenous, Elena; Hadjiyannakou, Stella C.; Vamvakaki, Maria; Patrickios, Costas S. (2002)Synthesis and characterization of polyampholytic model networks were studied using group transfer polymerization (GTP). The degrees of swelling (DSs) of all the polyampholytic networks were also measured as a function of ...
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Article
Synthesis and characterization of the swelling and mechanical properties of amphiphilic ionizable model co-networks containing n-butyl methacrylate hydrophobic blocks
Vamvakaki, Maria; Patrickios, Costas S. (2008)Amphiphilic ionizable model co-networks based on near-monodisperse, linear ABA and BAB triblock and statistical copolymers of 2-(dimethylamino)ethyl methacrylate (DMAEMA, hydrophilic ionizable) and n-butyl methacrylate ...
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Article
Synthesis of amphiphilic (ABC)n multiarm star triblock terpolymers
Triftaridou, Aggeliki I.; Vamvakaki, Maria; Patrickios, Costas S.; Stavrouli, N.; Tsitsilianis, C. (2005)The multiarm star-shaped ABC triblock terpolymers of the (ABC)n type and their linear counterparts were synthesized by group transfer polymerization (GTP). The linear and star ABC triblock and statistical terpolymers as ...
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Article
Synthesis, characterization and evaluation of amphiphilic diblock copolymer emulsifiers based on methoxy hexa(ethylene glycol) methacrylate and benzyl methacrylate
Hadjiyannakou, Stella C.; Vamvakaki, Maria; Patrickios, Costas S. (2004)Linear, amphiphilic diblock copolymers based on the nonionic, hydrophilic monomer methoxy hexa(ethylene glycol) methacrylate (HEGMA) and the hydrophobic monomer benzyl methacrylate (BzMA) of different molecular weights and ...
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Article
Synthesis, characterization and modeling of ABC triblock terpolymers: The effect of block sequence
Triftaridou, Aggeliki I.; Vamvakaki, Maria; Patrickios, Costas S.; Lue, L. (2002)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 ...
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Article
Synthesis, characterization, and evaluation as emulsifiers of amphiphilic-ionizable aromatic methacrylate ABC triblock terpolymers
Kyriacou, M. S.; Hadjiyannakou, Stella C.; Vamvakaki, Maria; Patrickios, Costas S. (2004)Four isomeric terpolymers based on benzyl methacrylate (BzMA, nonionic hydrophobic), 2-(dimethylamino)ethyl methacrylate (DMAEMA, ionizable hydrophilic), and methoxyhexa(ethylene glycol) methacrylate (HEGMA, nonionic ...