Study on modified phenolic resin. I. Modification with homopolymer prepared from <i>p</i>‐hydroxyphenylmaleimide

Matsumoto, Akihiro; Hasegawa, Kiichi; Fukuda, Akinori; Otsuki, Kazuo

doi:10.1002/app.1991.070430215

Cited by 31 publications

(12 citation statements)

References 8 publications

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“…For many decades, researchers have shown interest in improving the toughness of phenolic resins. In those studies (Matsumoto et al 1991(Matsumoto et al , 1992(Matsumoto et al , 1993, different kinds of polymers were blended with phenolic resins to accomplish this goal. Among these polymers, isocyanate resin, known as methylene diphenyl diisocyanate (MDI), which is also an important binder used in the woodworking industry, has the highest potential to react with PF resin.…”

Section: Introductionmentioning

confidence: 99%

Developing a Renewable Hybrid Resin System. Part I: Characterization of Co-Polymers of Isocyanate with Different Molecular Weights of Phenolic Resins

Liu¹,

Shmulsky²,

Luo³

et al. 2016

BioResources

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Co-polymer systems of methylene diphenyl diisocyanate (MDI) and phenol-formaldehyde (PF) resins with different molecular weights were characterized by infrared spectroscopy (FTIR), X-ray diffraction (XRD), and thermogravimetric analysis (TGA). The FTIR and TGA coupled with differential thermogravimetric (DTG) results showed that higher molecular weight of PF resins not only promoted the reaction of isocyanate and PF co-polymer system, but also resulted in a better thermal property of prepared co-polymers. The XRD results revealed that higher molecular weight led to a higher proportion of ordered or crosslinking structures in the hybrid resin system. The relationship between the thermal resistance, mechanical properties and the molecular weights of phenolic resins needs further study.

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Section: Introductionmentioning

confidence: 99%

Developing a Renewable Hybrid Resin System. Part I: Characterization of Co-Polymers of Isocyanate with Different Molecular Weights of Phenolic Resins

Liu¹,

Shmulsky²,

Luo³

et al. 2016

BioResources

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“…Polyaspartimides have been synthesized through a Michael addition reaction of the phosphonate‐containing BMI monomer with various aromatic diamines,24, 25 which is illustrated in Scheme . Using acetic acid as a catalyst, a Michael addition reaction of the BMI monomer with various aromatic diamines is maintained for 72 h to obtain a viscous copolymer solution.…”

Section: Resultsmentioning

confidence: 99%

Studies of phosphonate‐containing bismaleimide resins. I. Synthesis and characteristics of model compounds and polyaspartimides

Shu

Perng

Chin

2001

J of Applied Polymer Sci

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Two phosphonate-containing bismaleimide (BMI) [(4,4Ј-bismaleimidophenyl)phosphonate] monomers with different melting temperatures and similar curing temperatures were synthesized by reacting N-hydroxyphenylmaleimide with two kinds of dichloride-terminated phosphonic monomers. The BMI monomers synthesized were identified with 1 H-, 13 C-, and 31 P-nuclear magnetic resonance (NMR) spectroscopy and elemental analysis. The phosphonate-containing BMI monomers react with a freeradical initiator to prepare phosphonate-containing BMI polymers and also with various aromatic diamines to prepare a series of polyaspartimides as reactive flame retardants. The polymerization degrees of polyaspartimides depend on the alkalinity and nucleophility of diamines as chain extenders. Differential scanning calorimetry (DSC) and thermogravimetry analysis (TGA) were used to study the thermal properties of the phosphonate-containing BMI resins such as the melting temperature, curing temperature, glass transition temperature (T g ), and thermal resistance. All the phosphonatecontaining BMI resins, except the BMI polymers, have a T g in the range of 210 -256°C and show 5% weight loss temperatures (T 5% ) of 329 -434 and 310 -388°C in air and nitrogen atmospheres, respectively. The higher heat resistance of cured BMI resin relative to the BMI polymer is due to its higher crosslinking density. Since the recrosslinking reactions of BMI polymers and polyaspartimides occur more easily in an oxidation environment, their thermal stabilities in air are higher than are those in nitrogen gas. In addition, the thermal decomposition properties of polyaspartimides depend on the structures and compositions of both the diamine segments and the BMI segments.

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“…Matsumoto and coworkers 164,169 incorporated poly(N-(hydroxyphenyl)maleimides) into composite materials with phenol-formaldehyde resins. Poly(N-(4-hydroxyphenyl)maleimide) has been shown to form miscible blends with phenolic resins and, after crosslinking, produces composites with good thermal and chemical stability.…”

Section: Synthesis and Polymerization Of N-(substituted Phenyl)maleimidementioning

confidence: 99%

Polymers Based on Phenols

Solomon¹,

Qiao²,

Caulfield³

2003

PATAI'S Chemistry of Functional Groups

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Study on modified phenolic resin. I. Modification with homopolymer prepared from p‐hydroxyphenylmaleimide

Cited by 31 publications

References 8 publications

Developing a Renewable Hybrid Resin System. Part I: Characterization of Co-Polymers of Isocyanate with Different Molecular Weights of Phenolic Resins

Developing a Renewable Hybrid Resin System. Part I: Characterization of Co-Polymers of Isocyanate with Different Molecular Weights of Phenolic Resins

Studies of phosphonate‐containing bismaleimide resins. I. Synthesis and characteristics of model compounds and polyaspartimides

Polymers Based on Phenols

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