Main chain helical transformation induced through UV light in arylidene polymer

Arun, A.; Reddy, B. S. R.

doi:10.1016/j.polymer.2005.08.046

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…The cyclo addition reaction in arylidene type polymer can also induce chiral transformation from one form to another, i.e. right‐handed helices to left‐handed helices . However, if you have only one type of crosslinkable double bond, you will end up with only cyclo addition reaction and not cis–trans isomerization.…”

Section: Introductionmentioning

confidence: 99%

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Cis–trans isomerism shown by the polymer containing chalcone moiety in its side chain

Suresh

Karthik

Arun

2016

Polymers for Advanced Techs

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Polymer containing chalcone moiety showed a cis-trans isomerism. Two novel acrylate monomers, 4-[3-(2,4-dichloro-phenyl)3-oxoprop-1-en-1-yl]phenylacrylate (DCP) and 4-(3-(4-((4-(4-(3-(2,4-dichlorophenyl)-3-oxoprop-1-en-1-yl)phenoxy)-6-((4-nitrophenyl)amino)-1,3,5-triazin-2-yl)oxy)phenyl)-3-oxoprop-1-en-1-yl)phenyl acrylate (TCP) were synthesized and copolymer with acrylic acid. All the monomers and polymer were characterized by IR, NMR and UV techniques. The M w of the DCP based polymer and TCP based polymer were 4000 and 10,000 g/ mol respectively. DCP and TCP based polymer showed double stage and single stage decomposition respectively. The reactivity ratio of the polymers showed that the poly(DCP-co-AA) formed random polymerization whereas poly(TCP-co-AA) formed alternate copolymerization. The poly(TCP-co-AA) showed excellent photoisomerism whereas poly(DCP-co-AA) showed photocycloaddition reaction.

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Section: Introductionmentioning

confidence: 99%

“…right-handed helices to left-handed helices. [18] However, if you have only one type of crosslinkable double bond, you will end up with only cyclo addition reaction and not cis-trans isomerization. Such type of photo responsive materials are called chalcones.…”

Section: Introductionmentioning

confidence: 99%

Cis–trans isomerism shown by the polymer containing chalcone moiety in its side chain

Suresh

Karthik

Arun

2016

Polymers for Advanced Techs

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Synthesis and characterization of mono‐ and di‐methoxy substituted acrylate polymers containing photocrosslinkable pendant chalcone moiety

Tamilvanan

Pandurangan

Subramanian

et al. 2008

Polymers for Advanced Techs

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Two acrylate monomers – 4‐(2′‐methoxycinnamoyl)phenyl acrylate, and 4‐(2′,5′‐dimethoxycinnamoyl)phenyl acrylate – comprising photocrosslinkable pendant chalcone moiety and a free radical polymerizable group were synthesized. The monomers were polymerized in the presence of ethyl methyl ketone at 70°C using benzoyl peroxide as the initiator. The polymers were characterized by UV, FT‐IR, 1H‐NMR, and 13C‐NMR spectra. The weight and number average molecular weights of the polymers were determined by gel permeation chromatography. The thermal stability of the polymers was studied by TGA under a nitrogen atmosphere. Glass transition temperatures of the polymers were studied by differential scanning calorimetry. The photoreactivity of the polymers was investigated for potential applications as photoresists in solution using various solvents. Copyright © 2008 John Wiley & Sons, Ltd.

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The structural analysis of biomacromolecule wool fiber with Ag-loading SiO2 nano-antibacterial agent by UV radiation

Niu

Wei

et al. 2007

Journal of Photochemistry and Photobiology A: Chemistry

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Main chain helical transformation induced through UV light in arylidene polymer

Cited by 3 publications

References 16 publications

Cis–trans isomerism shown by the polymer containing chalcone moiety in its side chain

Cis–trans isomerism shown by the polymer containing chalcone moiety in its side chain

Synthesis and characterization of mono‐ and di‐methoxy substituted acrylate polymers containing photocrosslinkable pendant chalcone moiety

The structural analysis of biomacromolecule wool fiber with Ag-loading SiO2 nano-antibacterial agent by UV radiation

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