Preparation and Performance of Poly(butyl fumarate)-Based Material for Potential Application in LED Encapsulation

Abstract

A UV-curable poly(butyl fumarate) (PBF)/poly(propylene fumarate)-diacrylate (PPF-DA) hybrid material with good performance for LED encapsulation is introduced in the paper. They have been prepared by radical polymerization using PBF and PPF-DA macromers with a UV curing system. PBF and PPF-DA were characterized by Fourier-transform infrared (FT-IR) and H-nuclear magnetic resonance (1H NMR). The thermal behavior, optical and mechanical properties of the material were examined by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), ultraviolet-visible spectroscopy (UV–vis), and a material testing system mechanical testing machine, respectively. The results indicated that the hybrid material has a suitable refractive index (n = 1.537) and high transmittance (99.64% in visible range) before/after thermal aging. With the increasing of the double bond ratio from 0.5 to 2, the water absorption ratios of the prepared encapsulation material were 1.22%, 1.87% and 2.88%, respectively. The mechanical property experiments showed that bonding strength was in the range of 1.86–3.40 MPa, tensile-shear strength ranged from 0.84 MPa to 1.57 MPa, and compression strength was in the range of 5.10–27.65 MPa. The cured PBF/PPF-DA hybrid material can be used as a light-emitting diode (LED) encapsulant, owing to its suitable refractive index, high transparency, excellent thermal stability, lower water absorption, and good mechanical properties.

Development and properties of UV‐cured poly (propylene fumarate)/hydroxyapatite composites coatings as potential application for bone adhesive tape

“…The molecular structure of the polymers synthesized in the current study was comparable with previous reports, 28,29 as confirmed by Fourier transform infrared spectroscopy (as shown in Figure 4). The observed peaks, 1726 cm −1 (C═O stretching vibration), 1645 cm −1 (C═C stretching vibration), 1227 cm −1 (CO asymmetric vibration), 1159 cm −1 (CO symmetric vibration), 1456 cm −1 (CH 2 scissoring and asymmetric vibration), 1386 cm −1 (CH 3 symmetric stretching vibration), 982 cm −1 (CH vibration), and 3522 cm −1 (OH vibration), can be attributed to PPF.…”

“…According to our previous work, 28 PPF and PPF‐DA were synthesized and used to prepare composite materials. The molecular structure of the synthesized polymers were confirmed using NMR spectroscopy (Ultra shield‐400 plus spectrometer with CDCl 3 as solvent and tetramethylsilane [TMS] as the internal reference, Brooke company, Switzerland) and Nicolet Nexus FT IR spectrometer (Nexus 670, Thermo Nicolet Corporation, USA) as previously reported 28,29 . The molecular weight of PPF was determined by gel permeation chromatographic analysis (GPC, Viscotek GPC/SEC 270max, USA) with THF as eluent.…”

Fumaric Acid Production: A Biorefinery Perspective

“…These thermoplastic polymers are obtained by the condensation of polyols and polyacids (or their anhydrides) and subsequently modified with long fatty acids and oils, being one of the main monomers, in conjunction with phthalic anhydride, isophthalic acid, maleic anhydride, and many others. The main applications of these resins are in the coating industry [20].…”

Production and Polymerization of Biobased Acrylates and Analogs

“…Its insaturation also makes it interesting for the manufacture of unsaturated polyester resins that can be crosslinked by chemical or ultraviolet (UV) treatments. [ 225,226 ] Notably, poly(propylene fumarate) has been involved in the manufacture of biocomposites for tissue engineering with biomedical applications. [ 227 ] Unsaturated alkyd resins of FmA have also been used for coating applications.…”