Self-Organization of Nitrogen-Containing Polymeric Supramolecules in Thin Films

Knaapila, Matti; Torkkeli, Mika; Mäkelä, Tapio; Horsburgh, L. E.; Lindfors, Klas; Serimaa, Ritva; Kaivola, Matti; Monkman, Andrew P.; Brinke, G. ten; Ikkala, Olli

doi:10.1557/proc-660-jj5.21

Cited by 3 publications

(5 citation statements)

References 29 publications

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“…The layers align parallel to the quartz surface, and the h00 maxima are found in the out-of-plane direction (Fig. 6a) (Knaapila et al, 2001b). Reflections 020 and 004 are oriented in-plane (Fig.…”

Section: Self-assembled and Cleaved Structure In Thin Filmsmentioning

confidence: 91%

Diffraction analysis of highly ordered smectic supramolecules of conjugated rodlike polymers

Knaapila¹,

Torkkeli²,

Jokela³

et al. 2003

J Appl Cryst

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A small/wide-angle X-ray scattering and grazing incidence diffraction study of comb-shaped supramolecules of conjugated poly(2,5-pyridinediyl), acid dopant and hydrogen bonded amphiphilic side chains is reported. In solution, polymers are dissolved rodlike particles. When the side-chains are introduced, polymers self-assemble in hierarchic liquid crystals (LC). Diffraction patterns of aligned LC show h00, 020, and 004 reflections, and additional small-angle reflections along the polymer axis. A triangular correlation function indicating a very large correlation length is seen along the smectic axis. An aligned solid structure can be formed by cleaving side chains from the aligned LC.

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Section: Self-assembled and Cleaved Structure In Thin Filmsmentioning

confidence: 91%

Diffraction analysis of highly ordered smectic supramolecules of conjugated rodlike polymers

Knaapila¹,

Torkkeli²,

Jokela³

et al. 2003

J Appl Cryst

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“…Amphiphilic molecules 5-pentyl-1,3-dihydroxybenzene ͑PRES͒, 4-hexyl-1,3-dihydroxybenzene ͑HRES͒, octyl phenol ͑OP͒, or 1-octyl-3,4,5-trihydroxybenzoate ͑OG͒ were hydrogen bonded to PPY͑CSA) x . 7,9 The resulting complexes are denoted as PPY͑CSA) x (amphiphile) y . To prevent macrophase separation only selected x,y values are allowed.…”

mentioning

confidence: 99%

“…To prevent macrophase separation only selected x,y values are allowed. Complexes were studied using x-ray diffraction 7,9 and photophysical 8,10 techniques. The starting materials are crystalline.…”

mentioning

confidence: 99%

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Polarized luminescence from self-assembled, aligned, and cleaved supramolecules of highly ordered rodlike polymers

Knaapila

Ikkala

Torkkeli

et al. 2002

Applied Physics Letters

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Deposited in DRO:PW tnury PHIS Version of attached le: ulished ersion Peer-review status of attached le: eerEreviewed Citation for published item: unpilD wF nd skklD yF nd orkkeliD wF nd tokelD uF nd erimD F nd holnyD sFF nd frsD F nd ten frinkeD qF nd rorsurghD vFiF nd ¦ lssonD vFEyF nd wonkmnD eFF @PHHPA 9olrized luminesene from selfEssemledD lignedD nd leved suprmoleules of highly ordered rodlike polymersF9D epplied physis lettersFD VI @VAF ppF IRVWEIRWIF Further information on publisher's website: httpsXGGdoiForgGIHFIHTQGIFIRWWPPP Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. A hierarchical self-assembly in comb-shaped supramolecules of conjugated rodlike polymers is reported. The supramolecules consist of poly͑2,5-pyridinediyl͒, acid dopants, and hydrogen bonded alkyl side chains. A thermotropic smectic state with an exceptionally large coherence length is formed without additional solvent. This allows facile overall alignment resulting in high dichroism and polarized photoluminescence. Solid films are formed by cleaving side groups from the supramolecules which retain the optical anisotropy together with the high photoluminescence quantum yield of pristine polymer.

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“…[1][2][3][4][5][6][7] The concept allows self-organization and improved solubility even for polymers of rigid rodlike backbone. Unlike hairy-rod polymers with rodlike polymer backbone and covalently bonded flexible side chains, supramolecular hairy-rod polymers have the side groups connected to the backbone by physical bonds, [8][9][10][11][12][13][14] see Scheme 1. Theoretical treatments of the self-organized structure formation of hairy-rod polymers 15 and supramolecular hairy-rod polymers 16 have recently been presented.…”

Section: Introductionmentioning

confidence: 99%

Structure and Phase Equilibria of Polyelectrolytic Hairy-Rod Supramolecules in the Melt State

Knaapila¹,

Stepanyan²,

Monkman³

et al. 2003

J. Phys. Chem. B

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Structure and phase equilibria of polyelectrolytic hairy-rod supramolecules in the melt state Knaapila, M; Stepanyan, R; Horsburgh, LE; Monkman, AP; Serimaa, R; Ikkala, O; Subbotin, A; Torkkeli, M; ten Brinke, G; Horsburgh, Lockhart E. Take-down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.Downloaded from the University of Groningen/UMCG research database (Pure): http://www.rug.nl/research/portal. For technical reasons the number of authors shown on this cover page is limited to 10 maximum. FIN-02015 HUT, Finland ReceiVed: June 25, 2003; In Final Form: September 29, 2003 The structure formation and phase behavior of supramolecular hairy-rod polymers consisting of rodlike polymer chains with physically bonded side chains are investigated in the melt state using small-angle X-ray scattering. The supramolecules consist of poly(2,5-pyridinediyl), complexed by methanesulfonic acid to form poly(2,5-pyridinium methane sulfonates), to which octyl gallates are hydrogen bonded. These comblike supramolecules self-organize in rodlike assemblies in a square or oblique lattice or form lamellar structures. Moreover, nematic (solid) and macrophase separated structures are observed. These results are collected in a phase diagram in the high polymer fraction limit and they are in a clear qualitative resemblance with recent theoretical modeling. The differences and similarities between the experiments and theory are discussed.

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Self-Organization of Nitrogen-Containing Polymeric Supramolecules in Thin Films

Cited by 3 publications

References 29 publications

Diffraction analysis of highly ordered smectic supramolecules of conjugated rodlike polymers

Diffraction analysis of highly ordered smectic supramolecules of conjugated rodlike polymers

Polarized luminescence from self-assembled, aligned, and cleaved supramolecules of highly ordered rodlike polymers

Structure and Phase Equilibria of Polyelectrolytic Hairy-Rod Supramolecules in the Melt State

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