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Zhang R, Li Q, Ji D, Pan Y, Xu B, Huang Y, Zhao L. Preparation of a novel polymer monolith with high loading capacity by grafting block poly(PEGA–mPEGA) for high-efficiency solid phase synthesis. REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2015.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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2
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Zhang C, Chen L, Tan L, Zheng X, Wang Y. Poly(dopamine)-assisted preparation of star poly(ethylene glycol)-based coatings: A detailed study of their protein resistance and application in CE. REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2015.05.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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3
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Synthesis and self-assembly of Chitosan- g -Polystyrene copolymer: A new route for the preparation of heavy metal nanoparticles. J Colloid Interface Sci 2015; 438:110-115. [DOI: 10.1016/j.jcis.2014.09.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 09/12/2014] [Accepted: 09/15/2014] [Indexed: 11/22/2022]
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Zhang C, Liu S, Tan L, Zhu H, Wang Y. Star-shaped poly(2-methyl-2-oxazoline)-based films: rapid preparation and effects of polymer architecture on antifouling properties. J Mater Chem B 2015; 3:5615-5628. [DOI: 10.1039/c5tb00732a] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Star-shaped poly(2-methyl-2-oxazoline)-based films prepared through polydopamine-assistance provided enhanced antifouling properties than the linear ones, and showed superior stability than PEG films.
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Affiliation(s)
- Chong Zhang
- CAS Key Laboratory of Soft Matter Chemistry
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- P. R. China
| | - Songtao Liu
- CAS Key Laboratory of Soft Matter Chemistry
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- P. R. China
| | - Lin Tan
- CAS Key Laboratory of Soft Matter Chemistry
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- P. R. China
| | - Haikun Zhu
- CAS Key Laboratory of Soft Matter Chemistry
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- P. R. China
| | - Yanmei Wang
- CAS Key Laboratory of Soft Matter Chemistry
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- P. R. China
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Nagasaki Y. Construction of a densely poly(ethylene glycol)-chain-tethered surface and its performance. Polym J 2011. [DOI: 10.1038/pj.2011.93] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Felipe MJ, Estillore N, Pernites RB, Nguyen T, Ponnapati R, Advincula RC. Interfacial behavior of OEG-linear dendron monolayers: aggregation, nanostructuring, and electropolymerizability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:9327-9336. [PMID: 21696202 DOI: 10.1021/la200916n] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report on the interesting interfacial behavior of oligoethylene glycol or OEGylated linear dendron monolayers at the air-water interface as a function of (a) carbazole dendron generation, (b) the length of the OEG units, and (c) the surface pressure applied upon compression. Surface pressure-area isotherms, hysteresis studies, and isobaric creep measurement revealed a structure-property relationship consistent with the hydrophilic-lipophilic balance of a linear dendron with the OEG group serving as the surface anchor to the water subphase. AFM studies revealed that all the OEGylated carbazole dendrons self-assemble into spherical morphology at low surface pressures but form ribbonlike structures as the surface pressure is increased. This nanostructuring is primarily imparted by the increase in van der Waals forces with increasing amount of carbazole units per dendron generation on a hydrophilic mica surface. Further, electrochemical cross-linking of the carbazole molecules by cyclic voltammetery (CV) on doped Si wafer has enabled the formation of an LB film monolayer with a secondary level of organization in the monolayer imparted by the inter- and intramolecular cross-linking among the carbazole units. This study should provide a basis for monolayer film materials based on combining the LB technique and electrochemical cross-linking for nanostructuring superstructures at the air-water interface.
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Affiliation(s)
- Mary Jane Felipe
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, USA
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Choi I, Gunawidjaja R, Suntivich R, Tsitsilianis C, Tsukruk VV. Surface Behavior of PSn(P2VP-b-PtBA)n Heteroarm Stars. Macromolecules 2010. [DOI: 10.1021/ma101083a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- I. Choi
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245
| | - R. Gunawidjaja
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245
| | - R. Suntivich
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245
| | - C. Tsitsilianis
- Department of Chemical Engineering, University of Patras, 26504 Patras and Institute of Chemical Engineering and High Temperature Processes (FORTH/ICE-HT), Greece
| | - V. V. Tsukruk
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245
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Rother M, Barqawi H, Pfefferkorn D, Kressler J, Binder WH. Synthesis and Organization of Three-Arm-Star PIB-PEO Block Copolymers at the Air/Water Interface: Langmuir- and Langmuir-Blodgett Film Investigations. MACROMOL CHEM PHYS 2009. [DOI: 10.1002/macp.200900435] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Zhao L, Byun M, Rzayev J, Lin Z. Polystyrene−Polylactide Bottlebrush Block Copolymer at the Air/Water Interface. Macromolecules 2009. [DOI: 10.1021/ma9016345] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lei Zhao
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
| | - Myunghwan Byun
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
| | - Javid Rzayev
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260-3000
| | - Zhiqun Lin
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
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13
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Creation of dense polymer brush layers by the controlled deposition of an amphiphilic responsive comb polymer. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.05.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Gou PF, Zhu WP, Zhu N, Shen ZQ. Synthesis and characterization of novel resorcinarene-centered amphiphilic star-block copolymers consisting of eight ABA triblock arms by combination of ROP, ATRP, and click chemistry. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23371] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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16
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Gunawidjaja R, Huang F, Gumenna M, Klimenko N, Nunnery GA, Shevchenko V, Tannenbaum R, Tsukruk VV. Bulk and surface assembly of branched amphiphilic polyhedral oligomer silsesquioxane compounds. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:1196-1209. [PMID: 19090655 DOI: 10.1021/la803182n] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This study probes the behavior of two series of organic-functionalized core-shell silsesquioxane (POSS-M)p-(x/y) derivatives with various hydrophobic-hydrophilic terminal group compositions in the bulk state and within mono- and multilayered films at the air-water interface and on solid surface. POSS-M refers to mixed silsesquioxane cores, in contrast to the geometrically specific POSS compounds. It is composed of polyhedra, incompletely condensed polyhedra, ladder-type structures, linear structures, and all the possible combinations thereof and attracts great interest because of its facile preparation, low polydispersity, high yield, and low cost. The two series of (POSS-M)p-(x/y) molecules are different in hydrophobic-hydrophilic balance of their terminal groups, with x and y respectively referring to the molar percent of -OCONH-C(18)H(37) tails and -OH for p = 1 and the percent of -OCONH-C(18)H(37) tails and -OCO-C(6)H(4)COOH terminal groups for p = 2. In the bulk state, the presence of aromatic rings in (POSS-M)2-(x/y) series resulted in a lower symmetry crystal structure than the (POSS-M)1-(x/y) series. Moreover, the (POSS-M)p-(x/y) molecules that contain a sufficient amount of -OCONH-C(18)H(37) tails exhibit double endothermic transition, which attributed to the melting of alkyl chains followed by the melting of the unit cells of (POSS-M) cores. The surface morphologies for the various hydrophobic-hydrophilic combinations at surface pressure p = 0.5 mN/m are similar to that observed for the classical amphiphilic star polymers. However, at higher surface pressure (p > or = 5 mN/m), the POSS-M compounds with lower content of hydrophilic groups form a uniform monolayer.
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Affiliation(s)
- Ray Gunawidjaja
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, USA
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17
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Njikang GN, Cao L, Gauthier M. Pressure- and temperature-induced association of arborescent polystyrene-graft-poly(ethylene oxide) copolymers at the air-water interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:12919-12927. [PMID: 18850728 DOI: 10.1021/la802163k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The influence of surface pressure and subphase temperature on the association of arborescent polystyrene- graft-poly(ethylene oxide) (PS- g-PEO) copolymers at the air-water interface was investigated using the Langmuir balance and atomic force microscopy (AFM) techniques. These dendritic molecules form stable condensed monolayers with surface compressional moduli >250 mN/m. The variation in film thickness observed as a function of surface pressure suggests that at low surface pressures (gaslike phase) the PEO chains remain adsorbed at the air-water interface. At higher surface pressures (condensed phase), the PEO chains partially desorb into the subphase and adopt a more brushlike conformation. Large islandlike clusters with a broad size distribution were observed for samples with PEO contents of up to 15% by weight. In contrast, copolymers with PEO contents of 22-43% displayed enhanced side-by-side association into ribbonlike superstructures upon compression. The same effect was observed even in the absence of compression when the subphase temperature was increased from 12 to 27 degrees C. The temperature-induced association was attributed to increased van der Waals attractive forces between the PS cores relative to the steric repulsive forces between PEO chains in the coronas because the solvent quality for the PEO segments decreased at higher temperatures. The restricted number of superstructures observed for arborescent copolymers as compared with linear- and star-branched PS-PEO block copolymers is attributed to the enhanced structural rigidity of the molecules due to branching.
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Affiliation(s)
- Gabriel N Njikang
- Department of Chemistry, Institute for Polymer Research, University of Waterloo, Ontario, Canada
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18
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Wen G, Chung B, Chang T. Aggregation Behavior of Homo‐PS/PS‐b‐P2VP Blends at the Air/Water Interface. Macromol Rapid Commun 2008. [DOI: 10.1002/marc.200800106] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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19
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Njikang GN, Cao L, Gauthier M. Self-Assembly of Arborescent Polystyrene-graft-Poly(ethylene oxide) Copolymers at the Air/Water Interface. MACROMOL CHEM PHYS 2008. [DOI: 10.1002/macp.200700619] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Peetla C, Graf K, Kressler J. Langmuir monolayer and Langmuir–Blodgett films of amphiphilic triblock copolymers with water-soluble middle block. Colloid Polym Sci 2006. [DOI: 10.1007/s00396-006-1527-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Gunawidjaja R, Peleshanko S, Genson KL, Tsitsilianis C, Tsukruk VV. Surface morphologies of Langmuir-Blodgett monolayers of PEOnPSn multiarm star copolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:6168-76. [PMID: 16800672 DOI: 10.1021/la060299k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Star polymers composed of equal numbers of poly(ethylene oxide) (PEO) and polystyrene (PS) arms with variable lengths and a large (up to 38 total) number of arms, PEO(n)PS(n), have been examined for their ability to form domain nanostructures at the air-water and air-solid interfaces. All PEO(n)PS(n) star polymers formed stable Langmuir-Blodgett (LB) monolayers transferable to a solid substrate. A range of nanoscale surface morphologies have been observed, ranging from cylindrical to circular domains to bicontinuous structures as the weight fraction of the PEO block varied from 19% to 88% and n from 8 to 19. For the PS-rich stars and at elevated surface pressure, a two-dimensional supramolecular netlike nanostructure was formed. In contrast, in the PEO-rich star polymer with the highest PEO content, we observed peculiar dendritic superstructures caused by intramolecular segregation of nonspherical core-shell micellar structures. On the basis of Langmuir isotherms and observed monolayer morphologies, three different models of possible surface behavior of the star polymers at the interfaces were proposed.
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Affiliation(s)
- Ray Gunawidjaja
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, USA
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24
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Peleshanko S, Gunawidjaja R, Petrash S, Tsukruk VV. Synthesis and Interfacial Behavior of Amphiphilic Hyperbranched Polymers: Poly(ethylene oxide)−Polystyrene Hyperbranches. Macromolecules 2006. [DOI: 10.1021/ma060442g] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. Peleshanko
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, and Corporate Researches, National Starch and Chemical Company, Bridgewater, New Jersey 08807
| | - R. Gunawidjaja
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, and Corporate Researches, National Starch and Chemical Company, Bridgewater, New Jersey 08807
| | - S. Petrash
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, and Corporate Researches, National Starch and Chemical Company, Bridgewater, New Jersey 08807
| | - V. V. Tsukruk
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, and Corporate Researches, National Starch and Chemical Company, Bridgewater, New Jersey 08807
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25
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Taton D, Gnanou Y, Matmour R, Angot S, Hou S, Francis R, Lepoittevin B, Moinard D, Babin J. Controlled polymerizations as tools for the design of star-like and dendrimer-like polymers. POLYM INT 2006. [DOI: 10.1002/pi.2014] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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26
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Gunawidjaja R, Peleshanko S, Tsukruk VV. Functionalized (X-PEO)2-(PS-Y)2 Star Block Copolymers at the Interfaces: Role of Terminal Groups in Surface Behavior and Morphology. Macromolecules 2005. [DOI: 10.1021/ma050463v] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- R. Gunawidjaja
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
| | - S. Peleshanko
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
| | - V. V. Tsukruk
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
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27
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Matmour R, Francis R, Duran RS, Gnanou Y. Interfacial Behavior of Anionically Synthesized Amphiphilic Star Block Copolymers Based on Polybutadiene and Poly(ethylene oxide) at the Air/Water Interface. Macromolecules 2005. [DOI: 10.1021/ma050578z] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rachid Matmour
- Laboratoire de Chimie des Polymères Organiques (LCPO), ENSCPB−CNRS-Université Bordeaux 1, 16 Avenue Pey-Berland, 33607 Pessac Cedex, France, and The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200
| | - Raju Francis
- Laboratoire de Chimie des Polymères Organiques (LCPO), ENSCPB−CNRS-Université Bordeaux 1, 16 Avenue Pey-Berland, 33607 Pessac Cedex, France, and The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200
| | - Randolph S. Duran
- Laboratoire de Chimie des Polymères Organiques (LCPO), ENSCPB−CNRS-Université Bordeaux 1, 16 Avenue Pey-Berland, 33607 Pessac Cedex, France, and The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200
| | - Yves Gnanou
- Laboratoire de Chimie des Polymères Organiques (LCPO), ENSCPB−CNRS-Université Bordeaux 1, 16 Avenue Pey-Berland, 33607 Pessac Cedex, France, and The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200
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Logan JL, Masse P, Gnanou Y, Taton D, Duran RS. Polystyrene-block-poly(ethylene oxide) stars as surface films at the air/water interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:7380-9. [PMID: 16042469 DOI: 10.1021/la050787c] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Star diblock copolymers containing polystyrene (PS) and poly(ethylene oxide) (PEO) were investigated as surface films at the air/water interface. Both classic and dendritic-like stars were prepared containing either a PS core and PEO corona or the reverse. The investigated polymers, consisting of systematic variations in architectures and compositions, were spread at the air/water interface, generating reproducible surface pressure-area isotherms. All of the films could be compressed to higher pressures than would be possible for pure PEO. For stars containing 20% or more PEO, three distinct regions appeared. At higher areas, the PEO absorbs in pancakelike structures at the interface with PS globules sitting atop. Upon compression, a pseudoplateau transition region appeared. Both regions strongly depended on PEO composition. The pancake area and the pseudoplateau width and pressure increased in a linear fashion with an increasing amount of PEO. In addition, minimum limits of PEO chain length and mass percentage were determined for observing a pseudoplateau. At small areas, the film proved less compressible, producing a rigid film in which PS dominated. Here, the film area increased with both molecular weight and the amount of PS. Comparison with pure linear PS showed the stars spread more, occupying greater areas. Among the stars, the PEO-core stars were more compact while the PS-core stars spread more. The influence of architecture in terms of the core/corona polymers and branching were also examined. The effects of architecture were subtle, proving less important than PEO chain length or mass percentage.
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Affiliation(s)
- Jennifer L Logan
- The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, USA
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Peleshanko S, Gunawidjaja R, Jeong J, Shevchenko VV, Tsukruk VV. Surface behavior of amphiphilic heteroarm star-block copolymers with asymmetric architecture. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2004; 20:9423-9427. [PMID: 15491169 DOI: 10.1021/la049269c] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We study the surface behavior of the asymmetric amphiphilic heteroarm poly(ethylene oxide) (PEO)/polystyrene (PS) star polymer on solid substrate. These star polymers differ in both architecture (four- and three-arm molecules, PEO-b-PS(3) and PEO-b-PS(2)) and in the length of PS chains (molecular weight from about 10 000 up to 24 000). We observed that, for a given chemical composition with a predominant content of hydrophobic blocks, the compression behavior of the PS domain structure controls the surface behavior and the final morphology of the monolayers. New features of the surface behavior of star-block copolymers are high stretching of the PS arms from the interface and enhanced stability of the circular PS domain structure, even at high compression. We suggest that for asymmetric star-block copolymers both architecture and chemical composition heavily favor the formation of highly curved interfaces and, thus, more stable circular domain structure with stretched PS arms.
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Genson KL, Hoffman J, Teng J, Zubarev ER, Vaknin D, Tsukruk VV. Interfacial micellar structures from novel amphiphilic star polymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2004; 20:9044-9052. [PMID: 15461485 DOI: 10.1021/la048548x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
An amphiphilic heteroarm star polymer containing 12 alternating hydrophobic/hydrophilic arms of polystyrene (PS) and poly(acrylic acid) (PAA) connected to a well-defined rigid aromatic core was studied at the air-water and the air-solid interfaces. At the air-water interface, the molecules spontaneously form pancakelike micellar aggregates which measure up to several microns in diameter and 5 nm in thickness. Upon reduction of the surface area per molecule to 7 nm2, the two-dimensional micelles merged into a dense monolayer. We suggest that confined phase separation of dissimilar polymer arms occurred upon their segregation on the opposite sides of the rigid disklike aromatic core, forcing the rigid cores to adopt a face-on orientation with respect to the interface. Upon transfer onto solid supports the PS chains face the air-film interface making it completely hydrophobic, and the PAA chains were found to collapse and form a thin flattened underlayer. This study points toward new strategies to create large 2D microstructures with facial amphiphilicity and suggests a profound influence of star molecular architecture on the self-assembly of amphiphiles at the air-water interface.
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Affiliation(s)
- Kirsten L Genson
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, USA
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Peleshanko S, Jeong J, Shevchenko VV, Genson KL, Pikus Y, Ornatska M, Petrash S, Tsukruk VV. Synthesis and Properties of Asymmetric Heteroarm PEOn-b-PSm Star Polymers with End Functionalities. Macromolecules 2004. [DOI: 10.1021/ma0497557] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. Peleshanko
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, The Institute of Macromolecular Chemistry, Kiev, 02160, Ukraine, and Corporate Research, National Starch and Chemical Company, Bridgewater, New Jersey 08807
| | - J. Jeong
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, The Institute of Macromolecular Chemistry, Kiev, 02160, Ukraine, and Corporate Research, National Starch and Chemical Company, Bridgewater, New Jersey 08807
| | - V. V. Shevchenko
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, The Institute of Macromolecular Chemistry, Kiev, 02160, Ukraine, and Corporate Research, National Starch and Chemical Company, Bridgewater, New Jersey 08807
| | - K. L. Genson
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, The Institute of Macromolecular Chemistry, Kiev, 02160, Ukraine, and Corporate Research, National Starch and Chemical Company, Bridgewater, New Jersey 08807
| | - Yu. Pikus
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, The Institute of Macromolecular Chemistry, Kiev, 02160, Ukraine, and Corporate Research, National Starch and Chemical Company, Bridgewater, New Jersey 08807
| | - M. Ornatska
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, The Institute of Macromolecular Chemistry, Kiev, 02160, Ukraine, and Corporate Research, National Starch and Chemical Company, Bridgewater, New Jersey 08807
| | - S. Petrash
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, The Institute of Macromolecular Chemistry, Kiev, 02160, Ukraine, and Corporate Research, National Starch and Chemical Company, Bridgewater, New Jersey 08807
| | - V. V. Tsukruk
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, The Institute of Macromolecular Chemistry, Kiev, 02160, Ukraine, and Corporate Research, National Starch and Chemical Company, Bridgewater, New Jersey 08807
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Peleshanko S, Jeong J, Gunawidjaja R, Tsukruk VV. Amphiphilic Heteroarm PEO-b-PSm Star Polymers at the Air−Water Interface: Aggregation and Surface Morphology. Macromolecules 2004. [DOI: 10.1021/ma0493170] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. Peleshanko
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
| | - J. Jeong
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
| | - R. Gunawidjaja
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
| | - V. V. Tsukruk
- Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
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Wei M, Bullions TA, Rusa CC, Wang X, Tonelli AE. Unique morphological and thermal behaviors of reorganized poly(ethylene terephthalates). ACTA ACUST UNITED AC 2004. [DOI: 10.1002/polb.10681] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Francis R, Taton D, Logan JL, Masse P, Gnanou Y, Duran RS. Synthesis and Surface Properties of Amphiphilic Star-Shaped and Dendrimer-like Copolymers Based on Polystyrene Core and Poly(ethylene oxide) Corona. Macromolecules 2003. [DOI: 10.1021/ma030258k] [Citation(s) in RCA: 141] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Raju Francis
- Laboratoire de Chimie des Polymères Organiques, ENSCPB, Université Bordeaux 1, 16 Avenue Pey-Berland, 33607 Pessac Cedex, France, and The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200
| | - Daniel Taton
- Laboratoire de Chimie des Polymères Organiques, ENSCPB, Université Bordeaux 1, 16 Avenue Pey-Berland, 33607 Pessac Cedex, France, and The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200
| | - Jennifer L. Logan
- Laboratoire de Chimie des Polymères Organiques, ENSCPB, Université Bordeaux 1, 16 Avenue Pey-Berland, 33607 Pessac Cedex, France, and The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200
| | - Pascal Masse
- Laboratoire de Chimie des Polymères Organiques, ENSCPB, Université Bordeaux 1, 16 Avenue Pey-Berland, 33607 Pessac Cedex, France, and The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200
| | - Yves Gnanou
- Laboratoire de Chimie des Polymères Organiques, ENSCPB, Université Bordeaux 1, 16 Avenue Pey-Berland, 33607 Pessac Cedex, France, and The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200
| | - Randolph S. Duran
- Laboratoire de Chimie des Polymères Organiques, ENSCPB, Université Bordeaux 1, 16 Avenue Pey-Berland, 33607 Pessac Cedex, France, and The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200
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