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Percec V, Rudick J, Peterca M, Yurchenko M, Smidrkal J, Heiney P. Supramolecular Structural Diversity among First-Generation Hybrid Dendrimers and Twin Dendrons. Chemistry 2008; 14:3355-62. [DOI: 10.1002/chem.200701658] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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52
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Lligadas G, Percec V. Ultrafast SET-LRP of methyl acrylate at 25 °C in alcohols. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22607] [Citation(s) in RCA: 205] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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53
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Lligadas G, Percec V. Alkyl chloride initiators for SET-LRP of methyl acrylate. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22844] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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54
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Srinivasa Rao V, Samui AB. Effect of molecular architecture and size of mesogen on phase behavior and photoactive properties of photoactive liquid crystalline hyperbranched polyester epoxies containing benzylidene moiety. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pola.22405] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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55
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Murali M, Srinivasa Rao V, Samui AB. Liquid crystalline photoactive hyperbranched and linear benzylidene polyester with terminal epoxy and pendant hydroxyl groups. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pola.22066] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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56
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Tang X, Gao L, Fan X, Zhou Q. Effect of the terminal substituent of azobenzene on the properties of ABA triblock copolymers via atom transfer radical polymerization. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pola.22263] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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57
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Percec V, Holerca MN, Nummelin S, Morrison JJ, Glodde M, Smidrkal J, Peterca M, Rosen BM, Uchida S, Balagurusamy VSK, Sienkowska MJ, Heiney PA. Exploring and Expanding the Structural Diversity of Self-Assembling Dendrons through Combinations of AB, Constitutional Isomeric AB2, and AB3 Biphenyl-4-Methyl Ether Building Blocks. Chemistry 2006; 12:6216-41. [PMID: 16841348 DOI: 10.1002/chem.200600178] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
General, efficient and inexpensive methods for the synthesis of dendritic building blocks methyl 3',4'-dihydroxybiphenyl-4-carboxylate, 3',5'-dihydroxybiphenyl-4-carboxylate, and methyl 3',4',5'-trihydroxybiphenyl-4-carboxylate were elaborated. In all syntheses the major step involved an inexpensive Ni(II)-catalyzed Suzuki cross-coupling reaction. These three building blocks were employed together with methyl 4'-hydroxybiphenyl-4-carboxylate in a convergent iterative strategy to synthesize seven libraries containing up to three generations of 3',4'-, 3',5'-, and 3',4',5'-substituted biphenyl-4-methyl ether based amphiphilic dendrons. These dendrons self-assemble into supramolecular dendrimers that self-organize into periodic assemblies. Structural and retrostructural analysis of their assemblies demonstrated that these dendrons self-assemble into hollow and non-hollow supramolecular dendrimers exhibiting dimensions of up to twice those reported for architecturally related dendrons based on benzyl ether repeat units. These new dendrons expand the structural diversity and demonstrate the generality of the concept of self-assembling dendrons based on amphiphilic arylmethyl ethers.
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Affiliation(s)
- Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323, USA.
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58
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Giamberini M, Reina JA, Ronda JC. Influence of the side group shape on the arrangement of liquid-crystalline polyethers obtained by ring opening polymerization of oxiranes. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/pola.21280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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59
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Donnio B, Guillon D. Liquid Crystalline Dendrimers and Polypedes. SUPRAMOLECULAR POLYMERS POLYMERIC BETAINS OLIGOMERS 2006. [DOI: 10.1007/12_079] [Citation(s) in RCA: 118] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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60
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Murali M, Samui AB. Synthesis, photochemical and phase behavior of linear and hyperbranched photoactive benzylidene liquid-crystalline polyesters. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/pola.21501] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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61
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Tian Y, Kamata K, Yoshida H, Iyoda T. Synthesis, Liquid-Crystalline Properties, and Supramolecular Nanostructures of Dendronized Poly(isocyanide)s and Their Precursors. Chemistry 2006; 12:584-91. [PMID: 16187371 DOI: 10.1002/chem.200500868] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A series of novel dendronized pi-conjugated poly(isocyanide)s were synthesized successfully by using a Pd-Pt mu-ethynediyl dinuclear complex ([ClPt{P(C2H5)3}2C[triple bond]CPt{P(C2H5)3}2Cl]) as the initiator. The polymerizations of the dendronized monomers follow first-order kinetics, indicating that living polymerization takes place. The obtained polymers exhibit narrow polydispersities in the range of 1.03-1.20. Thermal properties of the poly(isocyanide)s as well as their isocyanide monomers and precursors with formamido (HCONH-) moieties as apexes were investigated by using differential scanning calorimetry (DSC), polarized optical microscopy (POM) and wide-angle X-ray diffraction (WAXD). Both the peripheries and the apex groups of the dendrons affect the formation of supramolecular column and/or cubic phases of the precursors and monomers. The formamido precursor forms a liquid-crystalline phase due to intermolecular hydrogen bonding. The isocyanide monomer lacks this hydrogen-bonding ability and does not display an organized mesophase. All of the rigid poly(isocyanide)s with the monodendrons exhibit columnar liquid-crystalline phases. Interestingly, cylindrical structures of a poly(isocyanide) were directly visualized by using transmission electron microscopy (TEM).
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Affiliation(s)
- Yanqing Tian
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji, Tokyo, 192-0397, Japan.
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62
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Lee EH, Yoon DK, Jung JM, Lee SR, Kim YH, Kim YA, Kim G, Jung HT. Alignment of Perfluorinated Supramolecular Columns on the Surfaces of Various Self-Assembled Monolayers. Macromolecules 2005. [DOI: 10.1021/ma050427w] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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63
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64
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Murali M, Samui AB. Photoactive, liquid-crystalline, hyperbranched benzylidene polyesters: Synthesis and characterization. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/pola.21118] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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65
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Barberá J, Donnio B, Gehringer L, Guillon D, Marcos M, Omenat A, Serrano JL. Self-organization of nanostructured functional dendrimers. ACTA ACUST UNITED AC 2005. [DOI: 10.1039/b502464a] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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66
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68
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Lecommandoux S, Klok HA, Sayar M, Stupp SI. Synthesis and self-organization of rod-dendron and dendron-rod-dendron molecules. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/pola.10855] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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69
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Ronda JC, Reina JA, Cádiz V, Giamberini M, Nicolais L. Self-organized liquid-crystalline polyethers obtained by grafting tapered mesogenic groups onto poly(epichlorohydrin): Toward biomimetic ion channels. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/pola.10888] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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70
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Percec V, Glodde M, Johansson G, Balagurusamy VSK, Heiney PA. Transformation of a Spherical Supramolecular Dendrimer into a Pyramidal Columnar Supramolecular Dendrimer Mediated by the Fluorophobic Effect. Angew Chem Int Ed Engl 2003; 42:4338-42. [PMID: 14502705 DOI: 10.1002/anie.200351804] [Citation(s) in RCA: 117] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, PA 19104-6323, USA.
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71
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Cheng CX, Tang RP, Zhao YL, Xi F. Synthesis of dendronized poly(methacrylates) and their diblock copolymers by atom transfer radical polymerization. J Appl Polym Sci 2003. [DOI: 10.1002/app.13483] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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72
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Ronda JC, Reina JA, Giamberini M. Self-organized liquid-crystalline polyethers obtained by grafting tapered mesogenic groups onto poly(epichlorohydrin): Toward biomimetic ion channels 2. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/pola.11016] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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73
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Elemans JAAW, Rowan AE, Nolte RJM. Mastering molecular matter. Supramolecular architectures by hierarchical self-assembly. ACTA ACUST UNITED AC 2003. [DOI: 10.1039/b304972h] [Citation(s) in RCA: 411] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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74
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Synthesis and Liquid Crystalline Properties of Hyperbranched Aromatic Polyesters Consisting of Azoxybenzene Mesogens and Polymethylene Spacers. B KOREAN CHEM SOC 2002. [DOI: 10.5012/bkcs.2002.23.9.1201] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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75
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Percec V, Bera TK. Cell membrane as a model for the design of semifluorinated ion-selective nanostructured supramolecular systems. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)00266-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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76
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Zeng E, Jacob KI, Polk MB. Synthesis and characterization of a new discotic columnar side-chain liquid crystalline polymer deuterated for NMR analysis. POLYMER 2002. [DOI: 10.1016/s0032-3861(02)00011-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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77
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Percec V, Holerca MN, Uchida S, Yeardley DJ, Ungar G. Poly(oxazoline)s with tapered minidendritic side groups as models for the design of synthetic macromolecules with tertiary structure. A demonstration of the limitations of living polymerization in the design of 3-D structures based on single polymer chains. Biomacromolecules 2002; 2:729-40. [PMID: 11710026 DOI: 10.1021/bm015559l] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis and living cationic ring-opening polymerization of 2-[3,4-bis(n-alkan-1-yloxy)phenyl]-2-oxazolines with alkan being tetradecan and pentadecan, i.e., (3,4)nG1-Oxz with n = 14 and 15, is described. The structural analysis of the resulting polymers with well-defined molecular weights and narrow molecular weight distribution was carried out by a combination of techniques, including differential scanning calorimetry (DSC), thermal optical polarized microscopy (TOPM), and X-ray diffraction (XRD). At low molecular weights both polymers self-assemble into spherical supramolecules that self-organize into a Pm3n 3-D lattice while at high molecular weights they form cylindrical macromolecules that self-organize into a p6mm 2-D hexagonal columnar lattice. Both polymers exhibit a 3-D shape change as a function of their degree of polymerization as was reported for the first time in a previous publication from our laboratory (Percec, V.; Ahn, C.-H; Ungar, G.; Yeardley, D. J. P.; Möller, M.; Sheiko, S. S. Nature (London) 1998, 391, 161). Since these polymers can be obtained via a living polymerization, a detailed mechanistic investigation of the influence of the degree of polymerization and molecular weight distribution on the formation of a 3-D spherical macromolecule from a single polymer chain, i.e., a tertiary structure, was possible. The experimental results have demonstrated that the synthesis of nonbiological macromolecules exhibiting tertiary structure is possible in at most a few percent of all macromolecules via living polymerization. This is the case even when macromolecules with very narrow molecular weight distributions and well-defined molecular weights are used. Therefore, the design of synthetic macromolecules with tertiary structure requires not only chains with well-defined molecular weight but also, in particular, macromolecules with no distribution of their chain length.
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Affiliation(s)
- V Percec
- Roy&Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
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78
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Percec V, Bera TK. Cell membrane as a model for the design of ion-active nanostructured supramolecular systems. Biomacromolecules 2002; 3:167-81. [PMID: 11866570 DOI: 10.1021/bm010138p] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis and polymerization of six AB(3) tapered self-assembling methacrylate monomers (5a, 5b, 5c,5d, 17a, and 17b) based on first generation alkyl substituted benzyl ether monodendrons (i.e., minidendrons) containing oligooxyethylene units at their focal point and the polymerizable group on their periphery are described. The corresponding polymers (6a, 6b, 6c, 6d, 18a, and 18b) self-assemble and subsequently self-organize in supramolecular networks that form a 2-D hexagonal lattice. This network consists of a continuous phase based on a paraffin barrier material perforated in a hexagonal array by ion-active channels constructed from the oligooxyethylenic units protected by the aromatic groups of the taper. Complexation of the oligooxyethylene channels of 6a-d with LiCF(3)SO(3) salt enhances the thermal stability of their hexagonal columnar (phi(h)) liquid crystalline phase. The enhancement of the thermal stability of the phi(h) phase of both monomers and polymers up to 86 degrees C is also achieved by shifting the placement of the polymerizable group from the 3 position to the 4 position of the 3,4,5-trisubstituted AB(3) benzoate monodendrons. The design of these macromolecules was inspired by the bilayer fluid mosaic structure of the cell membrane. The lipid bilayer of the cell membrane that acts in its ordered state as a barrier to the passage of polar molecules was replaced with the paraffinic barrier, while the protein-based ionic channels were replaced with oligooxyethylenic-based channels. The resulted supramolecular material has the mechanical integrity required for the design of ion-active nanostructured supramolecular systems.
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Affiliation(s)
- Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323, USA
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79
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Duan H, Hudson SD, Ungar G, Holerca MN, Percec V. Definitive support by transmission electron microscopy, electron diffraction, and electron density maps for the formation of a BCC lattice from poly[N-[3,4,5-tris(n-dodecan-1-yloxy)benzoyl]ethyleneimine]. Chemistry 2001; 7:4134-41. [PMID: 11686591 DOI: 10.1002/1521-3765(20011001)7:19<4134::aid-chem4134>3.0.co;2-w] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Transmission electron microscopy (TEM), electron diffraction (ED), and electron density maps (EDM) experiments were carried out on a poly[N-[3,4,5-tris(n-dodecan-1-yloxy)benzoyl]ethyleneimine] [poly[(3,4,5)12G1-Oxz]] with a degree of polymerization (DP) of 20. All experiments confirmed the thermotropic body-centered cubic (BCC) Im3m lattice suggested previously by X-ray diffraction (XRD) experiments. The unit cell parameter determined by ED at 23 degrees C is a = 42.4 A, in good agreement with XRD results which show a = 42.6 A after quenching from 70 degrees C. EDM of the XRD results confirm that the supramolecular minidendrimer obtained from poly[(3,4,5)12G1-Oxz] adopts a spherical "inverse micellar-like" structure, with the polyethyleneimine backbone and the aromatic groups microsegregated and concentrated in the corners and in the center of the cubic unit cell. A space-filling continuum is realized by the n-alkyl groups that radiate out of the aromatic core of the spherical dendrimer. This manuscript is only the second example of complete structural analysis of a lattice generated from supramolecular objects and complements the previous example reported from our laboratory on the Pm3n lattice.
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Affiliation(s)
- H Duan
- Department of Macromolecular Science, Case Western Reserve University, Cleveland, OH 44106, USA
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80
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Würsch A, Möller M, Glauser T, Lim LS, Voytek SB, Hedrick JL, Frank CW, Hilborn JG. Dendritic−Linear AxBx Block Copolymers Prepared via Controlled Ring-Opening Polymerization of Lactones from Orthogonally Protected Multifunctional Initiators. Macromolecules 2001. [DOI: 10.1021/ma0105035] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Andreas Würsch
- IBM Research, Almaden Research Center and Center on Polymer Interfaces and Macromolecular Assemblies, 650 Harry Road, San Jose, California 95120-6099
| | - Michael Möller
- IBM Research, Almaden Research Center and Center on Polymer Interfaces and Macromolecular Assemblies, 650 Harry Road, San Jose, California 95120-6099
| | - Thierry Glauser
- IBM Research, Almaden Research Center and Center on Polymer Interfaces and Macromolecular Assemblies, 650 Harry Road, San Jose, California 95120-6099
| | - Lisa S. Lim
- IBM Research, Almaden Research Center and Center on Polymer Interfaces and Macromolecular Assemblies, 650 Harry Road, San Jose, California 95120-6099
| | - Sarah B. Voytek
- IBM Research, Almaden Research Center and Center on Polymer Interfaces and Macromolecular Assemblies, 650 Harry Road, San Jose, California 95120-6099
| | - James L. Hedrick
- IBM Research, Almaden Research Center and Center on Polymer Interfaces and Macromolecular Assemblies, 650 Harry Road, San Jose, California 95120-6099
| | - Curtis W. Frank
- Department of Chemical Engineering and Center on Polymer Interfaces and Macromolecular Assemblies, Stanford University, Stanford, California 94305-5025
| | - Jöns G. Hilborn
- Materials Science Department, Swiss Federal Institute of Technology (EPFL), 1015 Lausanne, Switzerland
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81
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Enomoto M, Kishimura A, Aida T. Coordination metallacycles of an achiral dendron self-assemble via metal-metal interaction to form luminescent superhelical fibers. J Am Chem Soc 2001; 123:5608-9. [PMID: 11389657 DOI: 10.1021/ja010426t] [Citation(s) in RCA: 191] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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82
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Buchowicz W, Holerca MN, Percec V. Self-Inhibition of Propagating Carbenes in ROMP of 7-Oxa-bicyclo[2.2.1]hept-2-ene-5,6-dicarboxylic Acid Dendritic Diesters Initiated with Ru(CHPh)Cl2(PCy3)(1,3-dimesityl-4,5-dihydroimidazol-2-ylidene). Macromolecules 2001. [DOI: 10.1021/ma0021500] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wlodzimierz Buchowicz
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6332
| | - Marian N. Holerca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6332
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6332
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83
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Choi SH, Lee NH, Cha SW, Jin JI. Hyperbranched Thermotropic Liquid Crystalline Polyesters Composed of Aromatic Ester Type Mesogens and Polymethylene Spacers. Macromolecules 2001. [DOI: 10.1021/ma000591d] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Seong-Ho Choi
- Division of Chemistry and Molecular Engineering and Center for Electro- and Photo-Responsive Molecules, Korea University, Seoul 136-701, Korea
| | - Nam-Heui Lee
- Division of Chemistry and Molecular Engineering and Center for Electro- and Photo-Responsive Molecules, Korea University, Seoul 136-701, Korea
| | - Soon Wook Cha
- Division of Chemistry and Molecular Engineering and Center for Electro- and Photo-Responsive Molecules, Korea University, Seoul 136-701, Korea
| | - Jung-Il Jin
- Division of Chemistry and Molecular Engineering and Center for Electro- and Photo-Responsive Molecules, Korea University, Seoul 136-701, Korea
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84
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Percec V, Cho WD, Ungar G, Yeardley DJP. Synthesis and Structural Analysis of Two Constitutional Isomeric Libraries of AB2-Based Monodendrons and Supramolecular Dendrimers. J Am Chem Soc 2001. [DOI: 10.1021/ja0037771] [Citation(s) in RCA: 267] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Virgil Percec
- Contribution from the Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, and Department of Engineering Materials and Center for Molecular Materials, University of Sheffield, Sheffield S1 3JD, U.K
| | - Wook-Dong Cho
- Contribution from the Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, and Department of Engineering Materials and Center for Molecular Materials, University of Sheffield, Sheffield S1 3JD, U.K
| | - Goran Ungar
- Contribution from the Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, and Department of Engineering Materials and Center for Molecular Materials, University of Sheffield, Sheffield S1 3JD, U.K
| | - Duncan J. P. Yeardley
- Contribution from the Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, and Department of Engineering Materials and Center for Molecular Materials, University of Sheffield, Sheffield S1 3JD, U.K
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85
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Kaneko T, Asano M, Yamamoto K, Aoki T. Polymerization of Phenylacetylene-Based Monodendrons and Structure of the Corresponding Polydendrons. Polym J 2001. [DOI: 10.1295/polymj.33.879] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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86
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Percec V, Cho WD, Ungar G. Increasing the Diameter of Cylindrical and Spherical Supramolecular Dendrimers by Decreasing the Solid Angle of Their Monodendrons via Periphery Functionalization. J Am Chem Soc 2000. [DOI: 10.1021/ja0024643] [Citation(s) in RCA: 122] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Virgil Percec
- Contribution from the Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, and Department of Engineering Materials and Center for Molecular Materials, University of Sheffield, Sheffield S1 3JD, U.K
| | - Wook-Dong Cho
- Contribution from the Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, and Department of Engineering Materials and Center for Molecular Materials, University of Sheffield, Sheffield S1 3JD, U.K
| | - Goran Ungar
- Contribution from the Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, and Department of Engineering Materials and Center for Molecular Materials, University of Sheffield, Sheffield S1 3JD, U.K
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87
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Lee M, Cho BK, Kang YS, Zin WC. Hydrogen-Bonding-Mediated Formation of Supramolecular Rod−Coil Copolymers Exhibiting Hexagonal Columnar and Bicontinuous Cubic Liquid Crystalline Assemblies. Macromolecules 1999. [DOI: 10.1021/ma9900333] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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88
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Percec V, Cho WD, Mosier PE, Ungar G, Yeardley DJP. Structural Analysis of Cylindrical and Spherical Supramolecular Dendrimers Quantifies the Concept of Monodendron Shape Control by Generation Number. J Am Chem Soc 1998. [DOI: 10.1021/ja9819007] [Citation(s) in RCA: 196] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- V. Percec
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, and Department of Engineering Materials and Center for Molecular Materials, University of Sheffield, Sheffield S1 3JD, U.K
| | - W.-D. Cho
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, and Department of Engineering Materials and Center for Molecular Materials, University of Sheffield, Sheffield S1 3JD, U.K
| | - P. E. Mosier
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, and Department of Engineering Materials and Center for Molecular Materials, University of Sheffield, Sheffield S1 3JD, U.K
| | - G. Ungar
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, and Department of Engineering Materials and Center for Molecular Materials, University of Sheffield, Sheffield S1 3JD, U.K
| | - D. J. P. Yeardley
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, and Department of Engineering Materials and Center for Molecular Materials, University of Sheffield, Sheffield S1 3JD, U.K
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90
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Percec V, Ahn CH, Cho WD, Jamieson AM, Kim J, Leman T, Schmidt M, Gerle M, Möller M, Prokhorova SA, Sheiko SS, Cheng SZD, Zhang A, Ungar G, Yeardley DJP. Visualizable Cylindrical Macromolecules with Controlled Stiffness from Backbones Containing Libraries of Self-Assembling Dendritic Side Groups. J Am Chem Soc 1998. [DOI: 10.1021/ja981211v] [Citation(s) in RCA: 273] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- V. Percec
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
| | - C.-H. Ahn
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
| | - W.-D. Cho
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
| | - A. M. Jamieson
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
| | - J. Kim
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
| | - T. Leman
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
| | - M. Schmidt
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
| | - M. Gerle
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
| | - M. Möller
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
| | - S. A. Prokhorova
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
| | - S. S. Sheiko
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
| | - S. Z. D. Cheng
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
| | - A. Zhang
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
| | - G. Ungar
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
| | - D. J. P. Yeardley
- Contribution from The W. M. Keck Laboratories for Organic Synthesis, Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106-7202, Institut für Physikalische Chemie, Johannes Gutenberg-Universität, Jakob-Welder-Weg 11, D-55128 Mainz, Germany, Organische Chemie II, Makromolekulare Chemie, Universität Ulm, D-89069 Ulm, Germany, Maurice Morton Institute of Polymer Science, University of Akron, Akron, Ohio 44325-3909, and Department of Engineering Materials and Center for
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Chow HF, Mong TKK, Nongrum MF, Wan CW. The synthesis and properties of novel functional dendritic molecules. Tetrahedron 1998. [DOI: 10.1016/s0040-4020(98)00409-8] [Citation(s) in RCA: 153] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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