Thermodynamic properties of the novolac type phenolic resin blended with poly(hydroxyl ether of bisphenol A)

Wu, Huey-Dong; Chu, Peter P.; M., Chen Chi

doi:10.1016/s0032-3861(97)00320-0

Cited by 23 publications

(15 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Phenol-formaldehyde (PF) resin (phenolic resin) has been widely used in the wood products industry as well as for other important commercial applications because of its excellent heat and flame resistance, electrical insulation, high tensile strength, and chemical resistance (Wu et al 1997(Wu et al , 1998. However, the brittle nature of the resin limits its applications (Wu et al 1997).…”

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

View full text Add to dashboard Cite

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.

show abstract

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

View full text Add to dashboard Cite

show abstract

“…The intramolecular H‐bonding (CONH) and intermolecular H‐bonding (COOH) can be determined by IR absorption in 1500–1700 cm −1 . The H‐bonding is dynamic bonding, as proved by the IR spectra of phenolic/PDMSA blends with various temperatures in the range of 1500–1700 cm −1 8, 9. Figure 8 and Table IV confirm that COOH and CONH peaks decrease with an increase of temperature, while the “free” hydrogen bonding is increased with an increase of temperature.…”

Section: Resultsmentioning

confidence: 72%

“…The synthesis method and the analytical techniques of novolac‐type phenolic resin were described in previous reports 8–10. The synthesis of poly(dimethylsiloxane‐adipamide) (PDMSA) was as follows.…”

Section: Methodsmentioning

confidence: 99%

“…Improvement in the toughness of phenolic resin is important for further application 4–7. The miscibility of phenolic blends depends on both the strength of self‐association of the phenolic resin and the interassociation between the phenolic resin and modifier 8–16. A simple and useful method to analyze the miscibility of a polymer blend is by determining the T g as a function of composition 15, 16.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Preparation and characterization of novolac type phenolic resin blended with poly(dimethylsiloxane adipamide)

Hung

Wang

Chen‐Chi

et al. 2002

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

Phenolic resin/poly(dimethylsiloxane adipamide) (PDMSA) blends, which have been prepared, show miscibility due to intermolecular H-bonding existing between phenolic resin and the PDMSA. The specific H-bonding of novolac type phenolic/PDMSA blends was characterized by means of glass transition temperature behavior and Fourier Transform Infrared Spectroscopy (FTIR). The strength of intermolecular H-bonding within the phenolic blend is a function of the H-bonded group of the PDMSA modifier and corresponds to the deviation glass transition temperature (⌬T g ). Phenolic/PDMSA blends were completely miscible, as confirmed by the T g study. The FTIR result is in good agreement with the inference from T g behavior. The char yield of phenolic/PDMSA corresponds to the phenolic resin content. The molecular mobility of phenolic/PDMSA blends increases with PDMSA content in the phenolic-rich region.

show abstract

“…When the interaction of two hydroxyl group occurred, the background (the subtracted absorption band of various concentration 2,4‐xylenol) would be affected. As previous literature,41 the intensity of free hydroxyl group stretching in 3620 cm −1 must be corrected by considering the intensity change of different background. Measurement of f

_{OH}^{italicF}

from the EPH/2,4‐xylenol/cyclohexane mixtures allow us to calculate the appropriate interassociation equilibrium constant, K A , from eq.…”

Section: Resultsmentioning

confidence: 99%

The totally miscible in ternary hydrogen‐bonded polymer blend of poly(vinyl phenol)/phenoxy/phenolic

Kuo

2009

J of Applied Polymer Sci

View full text Add to dashboard Cite

The individual binary polymer blends of phenolic/phenoxy, phenolic/poly(vinyl phenol) (PVPh), and phenoxy/PVPh have specific interaction through intermolecular hydrogen bonding of hydroxyl-hydroxyl group to form homogeneous miscible phase. In addition, the miscibility and hydrogen bonding behaviors of ternary hydrogen bond blends of phenolic/phenoxy/PVPh were investigated by using differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy, and optical microscopy. According to the DSC analysis, every composition of the ternary blend shows single glass transition temperature (T g ), indicating that this ternary hydrogenbonded blend is totally miscible. The interassociation equilibrium constant between each binary blend was calculated from the appropriate model compounds. The interassociation equilibrium constant (K A ) of each individually binary blend is higher than any self-association equilibrium constant (K B ), resulting in the hydroxyl group tending to form interassociation hydrogen bond. Photographs of optical microscopy show this ternary blend possess lower critical solution temperature (LCST) phase diagram.

show abstract

Thermodynamic properties of the novolac type phenolic resin blended with poly(hydroxyl ether of bisphenol A)

Cited by 23 publications

References 26 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

Preparation and characterization of novolac type phenolic resin blended with poly(dimethylsiloxane adipamide)

The totally miscible in ternary hydrogen‐bonded polymer blend of poly(vinyl phenol)/phenoxy/phenolic

Contact Info

Product

Resources

About