Synthesis of urethane-containing epoxy oligomers

Mikheev, V. V.; Ivanova, R. R.

doi:10.1134/s1070427206020285

Cited by 2 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This product appears nearly colorless and brittle at low molecular weight or as tough rubbery solids at high molecular weight. Mikheev et al − and Rokicki et al ,, also reported similar polyhydroxyurethane synthesis.…”

Section: Preparation Of Nipumentioning

confidence: 75%

Progress in Study of Non-Isocyanate Polyurethane

Guan

Song

Lin

et al. 2011

Ind. Eng. Chem. Res.

327

247

View full text Add to dashboard Cite

Non-isocyanate polyurethane (NIPU) is a novel kind of polyurethane prepared by reaction of cyclo-carbonates and amines without use of toxic isocyanates. NIPU has attracted increasing attention because of its improvements in porosity, water absorption, and thermal and chemical resistance over conventional polyurethanes. Their potential technological applications include chemical-resistant coating, sealants, foam, etc. In this paper, on the basis of a comprehensive survey of the currently available literature on NIPU, we summarize recent progress in NIPU, and mainly discuss the syntheses of cyclo-carbonates oligomers, the reaction mechanism, and the preparation and application of different kinds of NIPU.

show abstract

Section: Preparation Of Nipumentioning

confidence: 75%

Progress in Study of Non-Isocyanate Polyurethane

Guan

Song

Lin

et al. 2011

Ind. Eng. Chem. Res.

327

247

View full text Add to dashboard Cite

show abstract

“…A weak absorption at 1776 cm −1 emerges at a low curing temperature of about 100°C, which belongs to a dimer of PAPI. With increasing curing temperature, the intensity of peaks at 2270 cm −1 and 913 cm −1 gradually decrease, which belong to NCO and epoxy groups, respectively . When the curing temperature is 220°C, the peak of the epoxy group at 913 cm −1 disappears due to transformation to an oxazolidone ring.…”

Section: Resultsmentioning

confidence: 98%

Preparation and characterization of highly thermostable polyisocyanurate foams modified with epoxy resin

Chen

Tian

Cao

et al. 2015

J of Applied Polymer Sci

View full text Add to dashboard Cite

A series of epoxy resin–modified polyisocyanurate (EP‐PIR) foams with oxazolidone (OX) rings and isocyanurate (IS) rings have been successfully prepared by the reaction of polymethylene polyphenyl isocyanate (PAPI) and diglycidyl ether of bisphenol‐A (DGEBA). Fourier transform infrared spectroscopy and differential scanning calorimetry are performed to investigate the influence of curing temperature on the chemical structure of EP‐PIR foams. The results indicate that low temperature is beneficial to the formation of the IS ring, and high temperature is in favor of the OX ring. The influence of the mole ratio of [PAPI]/[DGEBA] on the mechanical properties and thermal stability has also been studied. With the increase of [PAPI]/[DGEBA], the specific compressive strength shows a maximum of 0.0135 ± 0.0003 MPa m3/kg. The optimized mole ratio of [PAPI]/[DGEBA] is around 2.5 to reach the better mechanical and thermal properties, and the glass‐transition temperature is as high as 323.5°C. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43085.

show abstract

Synthesis of urethane-containing epoxy oligomers

Cited by 2 publications

References 1 publication

Progress in Study of Non-Isocyanate Polyurethane

Progress in Study of Non-Isocyanate Polyurethane

Preparation and characterization of highly thermostable polyisocyanurate foams modified with epoxy resin

Contact Info

Product

Resources

About