Synthesis and Properties of Polypropylene Carbonate Polyol-Based Waterborne Polyurethane

Abstract

Different kinds of anionic polyhydric alcohols water-borne polyurethane (WPU) emulsion and films were prepared by separately taking polypropylene carbonate polyol (PPC), polyethylene-1,4-buthylene adipate glycol (PBA) and polytetramethylene ether glycol (PTMG) with the same molecular weight as soft segment. Their structure and properties were characterized with Fourier transform infrared spectrometry (FT-IR), X-ray diffraction (XRD), rigidity, adhesive power, contact angle and water absorption. Comparing their properties, it was found that the rigidity, adhesive power and water resistance of PPC WPU were similar to those of PBA WPU.

Recent progress in carbon dioxide (CO2) as feedstock for sustainable materials development: Co-polymers and polymer blends

“…[92,93], while insoluble in water, ethylene glycol, ethyl alcohol, methanol, and other aliphatic hydrocarbons. Substituted aromatic compounds are also poor solvents of PPC [60,93], PBC and PCHC are soluble in THF [72,94]. Liu et al [95] conducted detailed investigation on the solubility of PEC by characterizing the physical properties of PEC M A N U S C R I P T…”

“…for controlled drug release because of its biodegradability [125] -Temporary adhesives for wafer-to-wafer bonding [126] Reactive hot melt adhesives for plastics (polycarbonates, acrylonitrile butadiene, poly(methyl methacrylate)), metals (metals, steel) [127] -Polyurethane foams for mattresses, automotive seats, armrests, sponges, furniture cushioning, foam sheetings etc. [128] -Waterborne polyurethane emulsions: polypropylene carbonate was used as the soft segment for coating and films applications[94]…”

Green and intrinsically safe pathways for the catalytic synthesis of diisocyanates containing the furan ring from 5-hydroxymethylfurfural

“…8 Furthermore, it is expected that this particular type of isocyanate exhibits promising potential for substituting carcinogenic aromatic isocyanates and facilitating the synthesis of polyurethane materials with low toxicity and special functions. For example, FDI and THFDI are expected to replace special functional isocyanates with similar structures such as m -xylylene diisocyanate (XDI) 14 and 1,3-bis(isocyanatomethyl)-cyclohexane (H 6 XDI), 15 respectively, and their synthesized polyurethanes will be able to compete with non-biobased polyurethanes with aromatic and alicyclic structures as prospective biopolymer materials.…”