Densely grafted liquid crystalline copper phthalocyanine side chain polymer: synthesis and characterization

Heinrich, C. David; Kostakoğlu, Sinem Tuncel; Thelakkat, Mukundan

doi:10.1039/c7tc01234a

Cited by 6 publications

(5 citation statements)

References 59 publications

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“…For both [CH‐Pc][Ps] and [CD‐Pc][Ps], the reciprocal d ‐spacings of the sharp small‐angle reflections relate to each other are 1:3 1/2 :2, which are indicative of a columnar phase with a hexagonal lattice Col h . [ 39–41 ] In the wide angle region, the broad halos presented at high angles around 2 θ ≈ 22 ° are associated with the inter disk distance ( c = 4.0 Å for [CH‐Pc][Ps] or 4.1 Å for [CD‐Pc][Ps]) in a 1D molecular stack. However, the series of diffraction peaks at small angles disappear to resemble that of an isotropic phase, indicating formation of nematic discotic phase.…”

Section: Resultsmentioning

confidence: 99%

Self‐Assembly and Molecular Electrical Switching Property of Phthalocyanine‐Based Liquid‐Crystalline Poly(Styrene Sulfonic Acid) Compounds

Kong

Tang

Chang

et al. 2021

Macro Materials & Eng

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A series of phthalocyanine‐based liquid‐crystalline poly(styrene sulfonic acid) compounds (LCPCs) are synthesized using cholesterol, dicarboxylic acid, amino‐ zinc phthalocyanine, and polystyrene sulfonic acid. The chemical structure, thermal property, liquid‐crystalline behavior, direct current conductivity, and temperature‐controlled molecular electronic switch property are investigated by use of various techniques. The LCPCs show both columnar phase (Colh) induced by the phthalocyanine moieties and nematic discotic (Nd) phase formed by the collapse of the columnar phase structure. The temperature‐dependent conductivity of the LCPCs is associated with the activation energy evaluated by Broido's graphical procedure according to the thermogravimetric analytical curves. The LCPCs show low conductivity derived from 1D charge migration through phthalocyanine cores in the colh phase, but exhibit high conductivity due to 3D ionic charge transport in the Nd phase. A temperature‐controlled molecular electronic switch is fabricated on the basis of the temperature‐dependent conductivity property, which can be useful for some potential applications.

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Section: Resultsmentioning

confidence: 99%

Self‐Assembly and Molecular Electrical Switching Property of Phthalocyanine‐Based Liquid‐Crystalline Poly(Styrene Sulfonic Acid) Compounds

Kong

Tang

Chang

et al. 2021

Macro Materials & Eng

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“…Pcs have been incorporated in such systems as a side group, as a terminal group, in the main chain and in a polymeric network [21][22][23][24][25][26]. Kimura et al studied the self-assembly properties of ZnPc-terminated Butyl Acrylate (BA) and Tri(Ethylene Glycol)Methyl Ether Acrylate (TEGA) polymers and have reported formation of nanofibers through self-organization [18].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Self-Assembly Properties of a New Copper-Phthalocyanine Core Acrylate Block Copolymer

Saha

Mandal

2020

ECS

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A new di-block acrylate copolymer with a Copper-Phthalocyanine (CuPc) core has been synthesized via a multi-step reaction scheme involving the atom-transfer radical polymerization. This material displayed amphiphilic character and consists of a CuPc core with eight copolymer arms. This new amphiphilic material and related intermediates have been characterized by UV-Vis, FT-IR, 1H-NMR and elemental analysis. A preliminary study involving self-assembly properties of this material by optical, atomic force and scanning electron microscopies is presented.

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“…30 Thelakkat et al reported the synthesis and characterization study of a soluble and hydrophilic semiconductor, in which they used grafting-to of a nonsymmetrical copper Pc with azide functionality to a styrene backbone. 31 Recently, our group reported the synthesis of a new functional polystyrene polymer with a zinc Pc terminal that involved a click reaction between nonsymmetrical terminal-alkynyl-containing zinc Pc and azide-end functional polystyrene. 32 Poor solubility and slippery π − π stacks restricted the applications of Pcs.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of tetrakis bromine terminated phthalocyanine and its methylmethacrylate polymers via ATRP

Çanak¹,

Yeşildağ²,

Nar³

et al. 2019

Turk J Chem

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A phthalocyanine (Pc) initiator, tetrakis(2-bromopropyloxyester)ethylthiophthalocyaninatozinc(II) (ZnPc-Br), was prepared and successfully applied to atom transfer radical polymerization (ATRP) of methyl methacrylate (MMA) for the first time. Bromine end groups of the synthesized Pc took part in the initiation of the MMA chain growth. Polymerization was demonstrated by monomodal molecular weight distribution of the synthesized polymers and their increasing molecular weight behavior with reaction time. UV-Vis absorption, fluorescence, and transmittance properties of the polymers were also examined. The results indicate that the ZnPc-Br-based initiator is potentially applicable in ATRP applied to MMA in order to obtain and develop functional acrylic materials.

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Densely grafted liquid crystalline copper phthalocyanine side chain polymer: synthesis and characterization

Abstract: Synthesis and characterization of a liquid crystalline polymer with pendant copper phthalocyanine side chains (PCuPc).

Cited by 6 publications

References 59 publications

Self‐Assembly and Molecular Electrical Switching Property of Phthalocyanine‐Based Liquid‐Crystalline Poly(Styrene Sulfonic Acid) Compounds

Self‐Assembly and Molecular Electrical Switching Property of Phthalocyanine‐Based Liquid‐Crystalline Poly(Styrene Sulfonic Acid) Compounds

Synthesis, Characterization and Self-Assembly Properties of a New Copper-Phthalocyanine Core Acrylate Block Copolymer

Synthesis of tetrakis bromine terminated phthalocyanine and its methylmethacrylate polymers via ATRP

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