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Nikravan G, Haddadi-Asl V, Salami-Kalajahi M. Stimuli-responsive DOX release behavior of cross-linked poly(acrylic acid) nanoparticles. E-POLYMERS 2019. [DOI: 10.1515/epoly-2019-0021] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
AbstractCross-linked poly(acrylic acid) nanoparticles were synthesized via distillation precipitation polymerization of acrylic acid and ethylene glycol dimethacrylate withdifferent molar ratios. Spherical nanoparticles with diameters between 75 and 122 nm were synthesized and exhibited temperature and pH-responsive behaviors. However, this behavior was less pronounced for samples with higher cross-linking degrees. The potential of all nanoparticles as carriers for controlled release of doxorubicin (DOX) anti-cancer drug was examined at pH values of 1.2, 5.3 and 7.4. An obvious alleviation in burst release behavior and the amount of cumulative drug release was seen for all nanoparticles as the pH of the medium and the cross-linking degree of nanoparticle increased. Also kinetics of drug release was studied using mathematical models of zero-order, first-order, Higuchi, Korsmeyer-Peppas and Hixson-Crowell, where Higuchi and Korsmeyer-Peppas models best defined the kinetics of drug release.
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Dehghani E, Salami-Kalajahi M, Roghani-Mamaqani H. Fabricating cauliflower-like and dumbbell-like Janus particles: Loading and simultaneous release of DOX and ibuprofen. Colloids Surf B Biointerfaces 2019; 173:155-163. [DOI: 10.1016/j.colsurfb.2018.09.068] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Revised: 09/04/2018] [Accepted: 09/26/2018] [Indexed: 01/22/2023]
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53
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Abdollahi A, Roghani-Mamaqani H, Razavi B, Salami-Kalajahi M. The light-controlling of temperature-responsivity in stimuli-responsive polymers. Polym Chem 2019. [DOI: 10.1039/c9py00890j] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Light-controlling of phase separation in temperature-responsive polymer solutions by using light-responsive materials for reversible controlling physical and chemical properties of the media with an out-of-system stimulus with tunable intensity.
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Pirayesh A, Salami-Kalajahi M, Roghani-Mamaqani H, Najafi F. Polysulfide Polymers: Synthesis, Blending, Nanocomposites, and Applications. POLYM REV 2018. [DOI: 10.1080/15583724.2018.1492616] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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55
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Pirayesh A, Salami-Kalajahi M, Roghani-Mamaqani H, Mazloomi-Rezvani M. Synthesis and characterization of bis(oxiranylmethyl)sulfanes as new epoxide-terminated polysulfide prepolymers and their use in synthesis of new amine-cured polysulfide polymers. ADVANCES IN POLYMER TECHNOLOGY 2018. [DOI: 10.1002/adv.22117] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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56
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Dehghani E, Salami-Kalajahi M, Roghani-Mamaqani H, Barzgari-Mazgar T, Nasiri SS. Design of polyelectrolyte core-shell and polyelectrolyte/non-polyelectrolyte Janus nanoparticles as drug nanocarriers. J DISPER SCI TECHNOL 2018. [DOI: 10.1080/01932691.2018.1461647] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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57
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Fallahi-Sambaran M, Salami-Kalajahi M, Dehghani E, Abbasi F. Investigation of different core-shell toward Janus morphologies by variation of surfactant and feeding composition: A study on the kinetics of DOX release. Colloids Surf B Biointerfaces 2018; 170:578-587. [PMID: 29975906 DOI: 10.1016/j.colsurfb.2018.06.064] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 06/10/2018] [Accepted: 06/29/2018] [Indexed: 11/28/2022]
Abstract
Composite particles with two individual hydrophilic parts were synthesized via seeded emulsion polymerization. As first part, nearly-monodisperse ethylene glycol dimethacrylate (EGDMA)-crosslinked poly(acrylic acid) (PAA) particles were synthesized by distillation precipitation polymerization (DPP). These particles were used as seeds in emulsion polymerization of 2-(dimethylamino)ethyl methacrylate (DMAEMA). Effects of type of surfactant, monomers/seed weight ratio and amount of shell crosslinker on the synthesized composite particles' morphology were studied. Different morphologies consisting of core-shell, Janus type, raspberry-like and porous core-shell structures were investigated by variations of polymerization parameters. Different structures were chosen as drug carriers and subjected to DOX loading and release system. Results showed that amount of drug loading and extent of release were strongly dependent on the structure of carriers whereas for all carriers, DOX was released more rapid. Kinetics of release was evaluated by different mathematical models to investigate the release mechanism through composite particles. Results showed that only Korsmeyer-Peppas model fitted the drug release data and other ones were inappropriate in this field.
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Dehghani E, Salami-Kalajahi M, Roghani-Mamaqani H. Simultaneous two drugs release form Janus particles prepared via polymerization-induced phase separation approach. Colloids Surf B Biointerfaces 2018; 170:85-91. [PMID: 29894836 DOI: 10.1016/j.colsurfb.2018.05.067] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 05/23/2018] [Accepted: 05/29/2018] [Indexed: 01/06/2023]
Abstract
Seeded emulsion polymerization of 2-dimethylaminoethylamino methacrylate (DMAEMA) was carried out using monodispersed poly(2-hydroxyehtyl methacrylate) (PHEMA) seeds to produce Janus particles. Three feeding approaches were used comprising one together, rest and continuous feeding methods to investigate different morphologies. However, FE-SEM results showed that all feeding approaches yielded dumbbell-like Janus particles. Furthermore, snowman-like Janus particles were obtained via seeded distillation precipitation polymerization (DPP). It is shown that minimizing the total interfacial free energy alongside difference in solubility parameters of Janus domains are responsible for obtained morphologies. Two different morphologies (dumbbell-like and snowman-like) were chosen as carriers of ibuprofen and DOX simultaneously. Also, simultaneous release of two drugs were investigated in different conditions. Dumbbell-like Janus particles showed higher ibuprofen loading whereas DOX was more loaded onto snowman-like Janus particles. Also, DOX was released more rapidly through Janus particles at different pH values and both types of Janus particles showed similar drugs release behaviors.
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Mazloomi-Rezvani M, Salami-Kalajahi M, Roghani-Mamaqani H. Fabricating core (Au)-shell (different stimuli-responsive polymers) nanoparticles via inverse emulsion polymerization: Comparing DOX release behavior in dark room and under NIR lighting. Colloids Surf B Biointerfaces 2018; 166:144-151. [DOI: 10.1016/j.colsurfb.2018.03.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 03/09/2018] [Accepted: 03/12/2018] [Indexed: 01/05/2023]
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60
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Nikravan G, Haddadi-Asl V, Salami-Kalajahi M. Synthesis of dual temperature – and pH-responsive yolk-shell nanoparticles by conventional etching and new deswelling approaches: DOX release behavior. Colloids Surf B Biointerfaces 2018; 165:1-8. [DOI: 10.1016/j.colsurfb.2018.02.010] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 02/04/2018] [Accepted: 02/06/2018] [Indexed: 01/21/2023]
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61
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Ebrahimi H, Roghani-Mamaqani H, Salami-Kalajahi M. Incorporation of graphene oxide nanolayers into thermally stable hybrid composites of thermosetting resins by combination of curing and sol–gel reactions. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2307-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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62
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Nikravan G, Haddadi-Asl V, Salami-Kalajahi M. Synthesis of pH-responsive magnetic yolk-shell nanoparticles: A comparison between conventional etching and new deswelling approaches. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4272] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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63
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Mousavi A, Roghani-Mamaqani H, Salami-Kalajahi M, Shahi S, Abdollahi A. Modification of graphene with silica nanoparticles for use in hybrid network formation from epoxy, novolac, and epoxidized novolac resins by sol-gel method: Investigation of thermal properties. EXPRESS POLYM LETT 2018. [DOI: 10.3144/expresspolymlett.2018.18] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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64
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Modarresi-Saryazdi SM, Haddadi-Asl V, Salami-Kalajahi M. N,N'-methylenebis(acrylamide)-crosslinked poly(acrylic acid) particles as doxorubicin carriers: A comparison between release behavior of physically loaded drug and conjugated drug via acid-labile hydrazone linkage. J Biomed Mater Res A 2017; 106:342-348. [DOI: 10.1002/jbm.a.36240] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 09/03/2017] [Accepted: 09/14/2017] [Indexed: 12/24/2022]
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65
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Golshan M, Salami-Kalajahi M, Roghani-Mamaqani H, Mohammadi M. Poly(propylene imine) dendrimer-grafted nanocrystalline cellulose: Doxorubicin loading and release behavior. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.047] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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66
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Golshan M, Salami-Kalajahi M, Mirshekarpour M, Roghani-Mamaqani H, Mohammadi M. Synthesis and characterization of poly(propylene imine)-dendrimer-grafted gold nanoparticles as nanocarriers of doxorubicin. Colloids Surf B Biointerfaces 2017; 155:257-265. [PMID: 28433942 DOI: 10.1016/j.colsurfb.2017.04.029] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 03/20/2017] [Accepted: 04/11/2017] [Indexed: 11/18/2022]
Abstract
The aim of current work is synthesis 4th-generation-poly(propylene imine) (PPI)-dendrimer modified gold nanoparticles (Au-G4A) as nanocarriers for doxorubicin (DOX) and studying in vitro drug release kinetics from nanocarriers into different media. Accordingly, AuNPs were synthesized by reduction of chloroauric acid (HAuCl4) aqueous solution with trisodium citrate and modified with cysteamine to obtain amine-functionalized (Au-NH2) nanoparticles. Au-NH2 nanoparticles were used as multifunctional cores and participated in Michael addition of acrylonitrile and reduction process by lithium aluminum hydride (LAH) to synthesize Au-G4A nanoparticles. Also, peripheral primary amine groups of Au-G4A were conjugated with folic acid (FA) (Au-G4F) to study the bioconjugation effect on drug release behavior of nanostructures. Ultraviolet spectroscopy (UV-vis), atomic force microscopy (AFM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), and thermal gravimetric analysis (TGA) were used to approve the synthesis of different nanostructures. Finally, Au-G4A and Au-G4F samples were loaded with DOX and exposed to environments with different pH values to examine the release properties of nanostructures. Also, drug release kinetics was investigated by fitting of experimental data with different release models. As a result, synthesized dendritic structures showed Higuchi and Korsmeyer-Peppas models release behavior due to better solubility of drug in release media with respect to dendrimer cavities and drug release through polymeric matrix respectively.
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67
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Mohammadi M, Salami-Kalajahi M, Roghani-Mamaqani H, Golshan M. Effect of molecular weight and polymer concentration on the triple temperature/pH/ionic strength-sensitive behavior of poly(2-(dimethylamino)ethyl methacrylate). INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2016.1236340] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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68
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Khadem F, Pishvaei M, Salami-Kalajahi M, Najafi F. Morphology control of conducting polypyrrole nanostructures via operational conditions in the emulsion polymerization. J Appl Polym Sci 2017. [DOI: 10.1002/app.44697] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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69
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Mohammadi M, Salami-Kalajahi M, Roghani-Mamaqani H, Golshan M. Synthesis and investigation of dual pH- and temperature-responsive behaviour of poly[2-(dimethylamino)ethyl methacrylate]-grafted gold nanoparticles. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3702] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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70
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Sharifzadeh E, Salami-Kalajahi M, Hosseini MS, Aghjeh MKR. Synthesis of silica Janus nanoparticles by buoyancy effect-induced desymmetrization process and their placement at the PS/PMMA interface. Colloid Polym Sci 2016. [DOI: 10.1007/s00396-016-3977-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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71
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Sharifzadeh E, Salami-Kalajahi M, Salami Hosseini M, Razavi Aghjeh MK, Najafi S, Jannati R, Hatef Z. Defining the characteristics of spherical Janus particles by investigating the behavior of their corresponding particles at the oil/water interface in a Pickering emulsion. J DISPER SCI TECHNOL 2016. [DOI: 10.1080/01932691.2016.1216861] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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72
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Banaei M, Salami-Kalajahi M. A “Grafting to” Approach to Synthesize Low Cytotoxic Poly(aminoamide)-Dendrimer-grafted Fe3O4Magnetic Nanoparticles. ADVANCES IN POLYMER TECHNOLOGY 2016. [DOI: 10.1002/adv.21741] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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73
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Noein L, Haddadi-Asl V, Salami-Kalajahi M. Grafting of pH-sensitive poly (N,N-dimethylaminoethyl methacrylate-co-2-hydroxyethyl methacrylate) onto HNTS via surface-initiated atom transfer radical polymerization for controllable drug release. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2016.1190927] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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74
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Noparvar-Qarebagh A, Roghani-Mamaqani H, Salami-Kalajahi M. Novolac phenolic resin and graphene aerogel organic-inorganic nanohybrids: High carbon yields by resin modification and its incorporation into aerogel network. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2015.11.024] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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75
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Samadaei F, Salami-Kalajahi M, Roghani-Mamaqani H. Grafting of poly(acrylic acid) onto poly(amidoamine)-functionalized graphene oxide via surface-mediated reversible addition-fragmentation chain transfer polymerization. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2015.1119686] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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76
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Abdollahi E, Abdouss M, Salami-Kalajahi M, Mohammadi A. Molecular Recognition Ability of Molecularly Imprinted Polymer Nano- and Micro-Particles by Reversible Addition-Fragmentation Chain Transfer Polymerization. POLYM REV 2016. [DOI: 10.1080/15583724.2015.1119162] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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77
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Abdollahi E, Abdouss M, Salami-Kalajahi M, Mohammadi A, Khalafi-Nezhad A. Synthesis and characterization of diethyl-dithiocarbamic acid 2-[4-(2-diethylthiocarbamoylsulfanyl-2-phenyl-acetyl)-2,5-dioxo-piperazin-1-yl]-2-oxo-1-phenyl-ethyl ester as new reversible addition-fragmentation chain transfer agent for polymerization of ethyl methacrylate. Des Monomers Polym 2015. [DOI: 10.1080/15685551.2015.1092013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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78
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Kariminejad B, Salami-Kalajahi M, Roghani-Mamaqani H. Thermophysical behaviour of matrix-grafted graphene/poly(ethylene tetrasulphide) nanocomposites. RSC Adv 2015. [DOI: 10.1039/c5ra20254j] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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79
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Samadaei F, Salami-Kalajahi M, Roghani-Mamaqani H, Banaei M. A structural study on ethylenediamine- and poly(amidoamine)-functionalized graphene oxide: simultaneous reduction, functionalization, and formation of 3D structure. RSC Adv 2015. [DOI: 10.1039/c5ra12086a] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Graphene oxide was simultaneously modified and reduced with ethylenediamine. Then, it was subjected to a grafting process with a PAMAM dendritic structure.
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80
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Torkpur-Biglarianzadeh M, Salami-Kalajahi M. Multilayer fluorescent magnetic nanoparticles with dual thermoresponsive and pH-sensitive polymeric nanolayers as anti-cancer drug carriers. RSC Adv 2015. [DOI: 10.1039/c5ra01444a] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fluorescent magnetic nanoparticles with dual thermoresponsive and pH-sensitive polymeric nanolayers as anti-cancer drug carriers.
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81
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Roghani-Mamaqani H, Haddadi-Asl V, Khezri K, Salami-Kalajahi M, Najafi M, Sobani M, Mirshafiei-Langari SA. Confinement effect of graphene nanoplatelets on atom transfer radical polymerization of styrene: grafting through hydroxyl groups. IRANIAN POLYMER JOURNAL 2014. [DOI: 10.1007/s13726-014-0299-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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82
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Roghani-Mamaqani H, Haddadi-Asl V, Khezri K, Salami-Kalajahi M, Najafi M. Kinetic study of styrene atom transfer radical polymerization from hydroxyl groups of graphene nanoplatelets: Heterogeneities in chains and graft densities. POLYM ENG SCI 2014. [DOI: 10.1002/pen.24010] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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83
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Amirshaqaqi N, Salami-Kalajahi M, Mahdavian M. Corrosion behavior of aluminum/silica/polystyrene nanostructured hybrid flakes. IRANIAN POLYMER JOURNAL 2014. [DOI: 10.1007/s13726-014-0264-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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84
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Panahian P, Salami-Kalajahi M, Hosseini MS. Synthesis of dual thermoresponsive and pH-sensitive hollow nanospheres by atom transfer radical polymerization. JOURNAL OF POLYMER RESEARCH 2014. [DOI: 10.1007/s10965-014-0455-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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85
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Panahian P, Salami-Kalajahi M, Salami Hosseini M. Synthesis of Dual Thermosensitive and pH-Sensitive Hollow Nanospheres Based on Poly(acrylic acid-b-2-hydroxyethyl methacrylate) via an Atom Transfer Reversible Addition–Fragmentation Radical Process. Ind Eng Chem Res 2014. [DOI: 10.1021/ie500892b] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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86
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Roghani-Mamaqani H, Haddadi-Asl V, Khezri K, Salami-Kalajahi M. Edge-functionalized graphene nanoplatelets with polystyrene by atom transfer radical polymerization: grafting through carboxyl groups. POLYM INT 2014. [DOI: 10.1002/pi.4730] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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87
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Nikdel M, Salami-Kalajahi M, Salami Hosseini M. Synthesis of poly(2-hydroxyethyl methacrylate-co-acrylic acid)-grafted graphene oxide nanosheets via reversible addition–fragmentation chain transfer polymerization. RSC Adv 2014. [DOI: 10.1039/c4ra01701c] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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88
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Roghani-Mamaqani H, Haddadi-Asl V, Khezri K, Salami-Kalajahi M. Polystyrene-grafted graphene nanoplatelets with various graft densities by atom transfer radical polymerization from the edge carboxyl groups. RSC Adv 2014. [DOI: 10.1039/c4ra03451a] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
An initiator containing modifier, 4-hydroxybutyl 2-bromopropionate (CBr), was synthesized by the reaction of 1,4-butanediol and alpha-bromoisobutyryl bromide. Subsequently, graphene oxide was functionalized with CBr to yield initiator-anchored graphene (GCBr). Then, GCBr was used as the precursor for ATRP of styrene.
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89
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Sobani M, Haddadi-Asl V, Mirshafiei-Langari SA, Salami-Kalajahi M, Roghani-Mamaqani H, Khezri K. A kinetics study on thein situreversible addition–fragmentation chain transfer and free radical polymerization of styrene in presence of silica aerogel nanoporous particles. Des Monomers Polym 2013. [DOI: 10.1080/15685551.2013.840496] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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90
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Sarsabili M, Parvini M, Salami-Kalajahi M, Ganjeh-Anzabi P. In Situ Reversible Addition-Fragmentation Chain Transfer Polymerization of Styrene in the Presence of MCM-41 Nanoparticles: Comparing “Grafting from” and “Grafting through” Approaches. ADVANCES IN POLYMER TECHNOLOGY 2013. [DOI: 10.1002/adv.21372] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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91
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Salami-Kalajahi M, Haddadi-Asl V, Rahimi-Razin S, Behboodi-Sadabad F, Roghani-Mamaqani H, Najafi M. Effect of Loading and Surface Modification of Nanoparticles on the Properties of PMMA/Silica Nanocomposites Prepared via In-Situ Free Radical Polymerization. INT J POLYM MATER PO 2013. [DOI: 10.1080/00914037.2012.670826] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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92
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Hatami L, Haddadi-Asl V, Ahmadian-Alam L, Roghani-Mamaqani H, Salami-Kalajahi M. Effect of Nanoclay on Styrene and Butyl Acrylate AGET ATRP in Miniemulsion: Study of Nucleation Type, Kinetics, and Polymerization Control. INT J CHEM KINET 2013. [DOI: 10.1002/kin.20757] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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93
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Sarsabili M, Parvini M, Salami-Kalajahi M, Asfadeh A. Effect of MCM-41 nanoparticles on the kinetics of free radical and RAFT polymerization of styrene. IRANIAN POLYMER JOURNAL 2012. [DOI: 10.1007/s13726-012-0114-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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94
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Ahmadian-Alam L, Haddadi-Asl V, Hatami L, Roghani-Mamaqani H, Salami-Kalajahi M. Kinetic study of in situ normal and AGET atom transfer radical copolymerization ofn-butyl acrylate and styrene: Effect of nanoclay loading and catalyst concentration. INT J CHEM KINET 2012. [DOI: 10.1002/kin.20729] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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95
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Khezri K, Haddadi-Asl V, Roghani-Mamaqani H, Salami-Kalajahi M. Polystyrene–organoclay nanocomposites produced by in situ activators regenerated by electron transfer for atom transfer radical polymerization. JOURNAL OF POLYMER ENGINEERING 2012. [DOI: 10.1515/polyeng-2012-0029] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A newly developed initiation system, activators regenerated by electron transfer (ARGET), was employed to synthesize polystyrene-organoclay nanocomposites via atom transfer radical polymerization (ATRP). ARGET ATRP was applied since it is carried out at significantly low concentrations of the catalyst and environmentally acceptable reducing agents. Conversion and molecular weight evaluations were performed using gravimetry and size exclusion chromatography (SEC), respectively. According to the findings, addition of clay content resulted in a decrease in conversion and molecular weight of nanocomposites. However, an increase of polydispersity index is observed by increasing nanoclay loading. The living nature of the polymerization is revealed by 1H NMR spectroscopy and extracted data from the SEC traces. X-ray diffraction (XRD) analysis shows that organoclay layers are disordered and delaminated in the polymer matrix and exfoliated morphology is obtained. Thermogravimetric analysis (TGA) shows that thermal stability of the nanocomposites is higher than the neat polystyrene. A decrease in glass transition temperature of the samples by increasing organoclay content is observed by differential scanning calorimetry (DSC). Transmission electron microscopy (TEM) reveals that clay layers are partially exfoliated in the polymer matrix containing 2 wt% of organomodified montmorillonite (PSON 2) and a dispersion of partially exfoliated clay stacks is formed.
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96
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Rahimi-Razin S, Haddadi-Asl V, Salami-Kalajahi M, Behboodi-Sadabad F, Roghani-Mamaqani H. Properties of matrix-grafted multi-walled carbon nanotube/poly(methyl methacrylate) nanocomposites synthesized by in situ reversible addition-fragmentation chain transfer polymerization. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2012. [DOI: 10.1007/s13738-012-0104-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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97
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Rahimi-Razin S, Haddadi-Asl V, Salami-Kalajahi M, Behboodi-Sadabad F, Roghani-Mamaqani H. Matrix-grafted multiwalled carbon nanotubes/poly(methyl methacrylate) nanocomposites synthesized by in situ RAFT polymerization: A kinetic study. INT J CHEM KINET 2012. [DOI: 10.1002/kin.20626] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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98
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Roghani-Mamaqani H, Haddadi-Asl V, Najafi M, Salami-Kalajahi M. Well-defined nanofiberous polystyrene nanocomposites with twofold chains by ATRP. POLYMER SCIENCE SERIES B 2012. [DOI: 10.1134/s1560090412030074] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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99
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Roghani-Mamaqani H, Haddadi-Asl V, Salami-Kalajahi M. In Situ Controlled Radical Polymerization: A Review on Synthesis of Well-defined Nanocomposites. POLYM REV 2012. [DOI: 10.1080/15583724.2012.668153] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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100
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Khezri K, Haddadi-Asl V, Roghani-Mamaqani H, Salami-Kalajahi M. Synthesis of well-defined clay encapsulated poly(styrene-co-butyl acrylate) nanocomposite latexes via reverse atom transfer radical polymerization in miniemulsion. JOURNAL OF POLYMER ENGINEERING 2012. [DOI: 10.1515/polyeng-2011-0149] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Well-defined poly(styrene-co-butyl acrylate) nanocomposite latexes were synthesized via reverse atom transfer radical polymerization (RATRP) in miniemulsion. Successful RATRP was carried out by using a hydrophobic ligand of 4,4’-dinonyl-2,2’-bipyridine (dNbpy) and a cationic surfactant of cetyltrimethylammonium bromide (CTAB). Dynamic light scattering (DLS) results show that droplets and particles with sizes in the range of about 170 nm were formed. Overall, conversion and molecular weight evaluation were performed by using gravimetry and size exclusion chromatography (SEC), respectively. Increasing nanoclay loading resulted in an increase in the conversion and molecular weight of the nanocomposites. However, polydispersity index (PDI) values increased by adding nanoclay content. Thermal stability of all the nanocomposites improved in comparison with the neat copolymer, according to the thermogravimetric analysis (TGA) results. Differential scanning calorimetry (DSC) results showed that the glass transition temperature (Tg) increased by increasing nanoclay content. Scanning electron microscopy (SEM) images of the nanocomposite with 1 wt% of nanoclay showed a monodisperse distribution of spherical particles, with sizes in the range of approximately 170 nm, as confirmed by the DLS data. Similarly, transmission electron microscopy (TEM) images show that clay layers are delaminated and well dispersed in the matrix of nanocomposite with 1 wt% clay content.
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