Phenolic resins bearing maleimide groups: Synthesis and characterization

Bindu, R. L.; Nair, C. P. Reghunadhan; Ninan, K. N.

doi:10.1002/(sici)1099-0518(20000201)38:3<641::aid-pola28>3.0.co;2-z

Cited by 51 publications

(23 citation statements)

References 16 publications

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“…Nair et al [42] synthesized phenolic novolac resins bearing maleimide groups. From the DSC results, the exotherm around 275°C was attributed to the addition polymerization reaction of the maleimide groups, and the exotherm at around 150°C to 170°C was ascribed to the condensation reaction of the methylol groups formed in minor quantities on the phenyl ring.…”

Section: Bmi and Allyl Phenol-formaldehyde Alder-ene Systemsmentioning

confidence: 99%

Maleimide-Based Alder-Enes

Chandran

Nair

2014

Handbook of Thermoset Plastics

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Section: Bmi and Allyl Phenol-formaldehyde Alder-ene Systemsmentioning

confidence: 99%

Maleimide-Based Alder-Enes

Chandran

Nair

2014

Handbook of Thermoset Plastics

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“…Limited studies have focussed on the synthesis of one-component Alder ene polymers. [9,10] Bindu et al [11] have synthesized such polymers by co-reacting maleimidophenol with allyl phenol in the presence of formaldehyde while Zhenhua Luo [12] has synthesized allyl functional novolac and blended with maleimide to form the pre-polymer.…”

Section: Introductionmentioning

confidence: 99%

One-component novel allyl–maleimide Alder ene resins: synthesis, curing, and thermal properties

Chandran

Robert

Sunitha

et al. 2015

Designed Monomers and Polymers

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Novolac resins, bearing both allyl and maleimide groups in varying proportions and capable of self-curing via Alder ene reaction, were synthesized by anchoring maleimidobenzoyl groups onto allyl novolac resins. These systems are capable of self-curing at moderate temperature by undergoing two-step cure reaction, i.e. ene reaction (~60°C) followed by Diels-Alder reaction (~180°C) to form thermal stable resins. Anchoring of the allyl and the maleimide groups in the same molecule decreases the cure activation energy tremendously due to increased proximity of reactive species and favorable activation entropy factors. The increase in activation energy with conversion implied that the reaction migrates from chemically controlled zone to diffusion-controlled zone beyond~50% conversions. The resins showed increasing thermal stability with enhanced maleimide content.

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“…These compounds show various color-shading properties due to the presence of the conjugated chromophore (-N=N-) group in association with one or more aromatic or heterocyclic systems. [1][2][3] Azo-coupling reactions are the best examples for synthesizing the new heterocyclic pigments for light, weather fastness, resistance to solvents, as well as water resistance. Such dyes have received a deal of great attraction toward the various color and pigment industries with respect to their versatility in textile as well as for dyeing purposes.…”

Section: Introductionmentioning

confidence: 99%

Novel Synthesis and Characterization of N‐Heterocyclic Azo Dyes with Acrylic Polymer for Thin Film Coatings

2015

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Nitrogen-containing heterocyclic compounds are an important class of compounds in dyeing and textile industries.New nitrogen containing heterocyclic azo compounds have been synthesized by using gold nanoparticles (AuNPs) as a catalyst having a particle size of 15 nm. AuNPs play an important role in the coupling reaction to produce new heterocyclic azo pigments. These azo pigments were tested to solubility, light fastness, and durability. These synthesized nitrogen-containing heterocyclic pigments were characterized by melting points, UV-vis, FT-IR, and 1 H NMR spectroscopy for their characteristics and structural features. After analysis, these pigments at lower concentrations were blended with the n-butyl acrylate-co-methyl methacrylate (n-BA-co-MMA) polymer. These blended pigments were coated on a simple silica glass surface by following the simple deep and dry method. The coupled azo pigment shows excellent binding strength with poly(n-BA-co-MMA) acrylic polymers. C

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Phenolic resins bearing maleimide groups: Synthesis and characterization

Cited by 51 publications

References 16 publications

Maleimide-Based Alder-Enes

Maleimide-Based Alder-Enes

One-component novel allyl–maleimide Alder ene resins: synthesis, curing, and thermal properties

Novel Synthesis and Characterization of N‐Heterocyclic Azo Dyes with Acrylic Polymer for Thin Film Coatings

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