Liquid crystalline polymers

Alazaroaie, Silvia; Toader, Violeta; Carlescu, Irina; Kaźmierski, K.; Scutaru, Dan; Hurduc, Nicolae; Simionescu, C. I.

doi:10.1016/s0014-3057(03)00002-8

Cited by 23 publications

(7 citation statements)

References 52 publications

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“…Phase transfer catalysis is a very convenient method for the synthesis [12][13][14] or the chemical modification of polymers [15,16] and phenols are particularly well suited for interfacial polycondensation [17] because of their acidic character. All polyethers were synthesized by interfacial polycondensation of BPA or catechol with different (EBr 2 ) n .…”

Section: Synthesis Of Polyethermentioning

confidence: 99%

Synthesis and chemical modification of new functional aromatic polyethers by phase transfer catalysis

Ismail¹,

Aguir

Mhenni

et al. 2014

Designed Monomers and Polymers

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In the field of functional polymers, new aromatic polyethers were obtained with good yields by interfacial polycondensation of (EBr 2 ) n and bisphenol A (bis(4-hydroxyphenylether) or catechol (2-hydroxyphenol) with various catalysts (Aliquat, TBAB, and TDA1).The structure of all aromatic polyethers was determined by means of 1 H and 13 C NMR, and infrared spectra. All polyethers had good solubilities and could be soluble in usual solvents such as acetone, chloroform, and dichloromethane. Average molecular weight ranged from 1000 to 11000 g mol −1. Their thermal characteristics were also studied by differential scanning calorimetry. The hydrolysis of these aromatic polyethers esters gives aromatic polyethers acids.

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Section: Synthesis Of Polyethermentioning

confidence: 99%

Synthesis and chemical modification of new functional aromatic polyethers by phase transfer catalysis

Ismail¹,

Aguir

Mhenni

et al. 2014

Designed Monomers and Polymers

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“…Some of the synthesized compounds contain an azo group in the molecule, permitting reversible trans-cis isomerization under UV irradiation, which may permit the use of such compounds as light modulators for microdisplays. Literature studies showed that the reversible trans-cis photoisomerization of azo chromophores could be used to design and exploit novel photoactive materials based on liquid crystals [32,33].…”

Section: Introductionmentioning

confidence: 99%

The liquid crystalline behaviour of ferrocene derivatives containing azo and imine linking groups

et al. 2007

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2007) The liquid crystalline behaviour of ferrocene derivatives containing azo and imine linking groups, Liquid Crystals, 34:7, 775-785, The synthesis and mesogenic properties of some Schiff bases containing ferrocene, azobenzene units and flexible end chains with 17 or 18 carbon atoms are reported. The compounds have been characterized by 1 H-NMR and 13 C-NMR spectroscopy, DSC and optical microscopy in polarized light.

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“…In the last few years, main-chain liquidcrystalline (MCLC) aromatic azo polyesters have been attracting a great deal of attention because of the numerous technological applications (1)(2)(3)(4)(5)(6)(7). Thermotropic MCLCPs are synthesized by combining the rigid mesogenic segments and flexible spacers in alternating succession (8).…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis of Liquid Crystalline Azo‐Polyesters

Niu

Samuelson

Kumar

2007

Journal of Macromolecular Science, Part A

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Main-chain thermotropic liquid-crystalline aromatic azobenzene polyesters containing rigid 4,4 0 -dihydroxyazobenzene mesogens and flexible spacers with varying lengths were synthesized using a chemo-enzymatic method. The enzyme-catalyzed approach is based on immobilized candida antarctica lipase B. The resulting polyesters were characterized by 1 H-NMR, 13 C-NMR, differential scanning calorimetry (DSC), and polarized light optical microscopy (POM).

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Liquid crystalline polymers

Cited by 23 publications

References 52 publications

Synthesis and chemical modification of new functional aromatic polyethers by phase transfer catalysis

Synthesis and chemical modification of new functional aromatic polyethers by phase transfer catalysis

The liquid crystalline behaviour of ferrocene derivatives containing azo and imine linking groups

Biosynthesis of Liquid Crystalline Azo‐Polyesters

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