Synthesis and characterization of copolymaleimides containing 4-cyanobiphenyl-based side groups for nonlinear optical applications

Gaṅgādhara,; Ponrathnam, S.; Noël, Claudine; Reyx, Danièle; Kajzar, F.

doi:10.1002/(sici)1099-0518(19990301)37:5<513::aid-pola1>3.0.co;2-c

Cited by 6 publications

(2 citation statements)

References 32 publications

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“…For this purpose the polymer analogous modified alternating maleic anhydride copolymer fulfills all the desired characteristic structure abilities to realize copolymer series possessing one or various side chains. Thus, a great variety of alternating maleimide (MI) copolymers was achieved to result in different material, bulk, and surface properties starting from helical-organized polymeric backbones over nonlinear optical properties, image recording materials, hydrophilic and hydrophobic surfaces, supramolecular polymer interactions, biocompatible surfaces, liquid crystallization, and extraction properties to (multi)layer formation by the Langmuir−Blodgett technique and many more.…”

Section: Introductionmentioning

confidence: 99%

Bulk and Surface Properties of Maleimide Copolymers: Effect of Fluorinated Side Chains

et al. 2005

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We studied the bulk and surface properties of maleimide (MI) copolymers based on three different main chains, poly(ethene-alt-maleimide), poly(styrene-alt-maleimide), and poly(octadecene-alt-maleimide), with two different types of side chains (4-(N-perfluoroheptylcarbonyl)aminobutyl and n-dodecyl). By the given alternating substitution pattern of the side chains in MI copolymers, different side chain organizations caused different surface energetics. On the basis of determined advancing contact angles of water on spin-coated MI copolymer films, solid surface tensions γ sv were calculated in the range of 19−23 mJ/m2 for alkyl side chains and of 11−18 mJ/m2 for fluorinated side chains. In both cases, within the aliphatic and fluorinated series, the main chain poly(styrene-alt-maleimide) suppressed a better alignment of side chains resulting in nondensely packed CH3 and CF3 surface groups, respectively, and higher solid surface tensions. For this study small- and wide-angle X-ray diffraction, differential scanning calorimetry, attenuated total reflection infrared spectroscopy, ellipsometry, atomic force microscopy, contact angle measurements, angle-resolved X-ray photoelectron spectroscopy, and molecular modeling calculation were used to investigate the bulk and surface properties.

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Section: Introductionmentioning

confidence: 99%

Bulk and Surface Properties of Maleimide Copolymers: Effect of Fluorinated Side Chains

et al. 2005

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“…A great variety of alternating maleimide (MI) copolymers have been exploited in material sciences in order to improve bulk and surface properties. − The easy approach, realized by polymer analogous reaction of alternating maleic anhydride copolymers with amino-functionalized compounds, is responsible for the introduction of different side groups with desired characteristic features for their use in special application fields. Especially, the development of MI copolymers for surface engineering is challenged to realize different states of hydrophilic/hydrophobic surface properties 5,7 to be used as top-coat layer, adhesion promoter, or biocompatible layer.…”

Section: Introductionmentioning

confidence: 99%

Molecular Dynamics in Poly(ethene-alt-N-alkylmaleimide)s As Studied by Broadband Dielectric Spectroscopy

Tsuwi¹,

Appelhans²,

Zschoche³

et al. 2004

Macromolecules

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Broadband dielectric spectroscopy has been used to analyze the molecular dynamics in a set of nine poly(ethene-alt-N-alkylmaleimide)s. The polymers were studied in the frequency range from 0.1 Hz to 10 MHz and at temperatures between 120 and 500 K. The alternating maleimide copolymers possess alkyl side chains varying in length from methyl to octadecyl. Four relaxation processes are observed: (i) a (secondary) β-relaxation corresponding to librational fluctuations of the terminal end group of the alkyl side chain, (ii) the α‘-relaxation being assigned to a relaxation of the side chain, (iii) the dynamic glass transition (α-relaxation), being designated to motions of the succinimide ring, and (iv) the αs-relaxation reflecting cooperative fluctuations of an ensemble of about 2−3 maleimide rings in an underlying helical superstructure. This model is supported by calorimetric measurements and published nuclear magnetic resonance data.

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Synthesis of homopolymers bearing novel chromophore 4-oxy-4?-(vinylbarbituratephenyl)azobenzene for nonlinear optical applications

Vohra

Suresh

Ponrathnam

et al. 2000

J. Polym. Sci. A Polym. Chem.

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Synthesis and characterization of copolymaleimides containing 4-cyanobiphenyl-based side groups for nonlinear optical applications

Cited by 6 publications

References 32 publications

Bulk and Surface Properties of Maleimide Copolymers: Effect of Fluorinated Side Chains

Bulk and Surface Properties of Maleimide Copolymers: Effect of Fluorinated Side Chains

Molecular Dynamics in Poly(ethene-alt-N-alkylmaleimide)s As Studied by Broadband Dielectric Spectroscopy

Synthesis of homopolymers bearing novel chromophore 4-oxy-4?-(vinylbarbituratephenyl)azobenzene for nonlinear optical applications

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