Photopolymerizable hyperbranched (meth)acrylated poly(amine ester)

Abstract

A hyperbranched (meth)acrylated poly-(amine ester) (HPAE-2-A) was synthesized by the modification of the hydroxyl end groups of the second generation of a hyperbranched poly(amine ester) with acryloyl chloride and methacrylic anhydride. The photopolymerization kinetics were investigated with photo-differential scanning calorimetry and Fourier transform infrared. The properties of HPAE-2-A, including the dynamic viscosity, pendulum hardness, and shrinkage, were also studied in comparison with those of a hyperbranched methacrylated poly(amine ester) (HPAE-2-MA) prepared in the laboratory and tradi-tional epoxy acrylate and epoxy methacrylate. HPAE-2-A polymerized rapidly under UV irradiation in the presence of a photoinitiator and had a higher final conversion of double bonds. The thermomechanical properties of UV-cured HPAE-2-MA films were compared with those of EB-cured films measured with a dynamic mechanical thermal analyzer.

Preparation and properties of hyperbranched poly(amine‐ester) films using acetal cross‐linking units

“…Concerning their synthesis efficiency, another important consideration concerns their cross‐linking (especially those in sticky states) into larger solid‐state matrices with certain functions. Until now, such investigations have been mainly focused on irradiation curing of double bonds in HBPs for coatings,27–32 modifying the surfaces of other polymers,33–40 and cross‐linking 41. Among these reports, hyperbranched poly(amine‐ester)s (HPAEs) based HBPs possess the most similar structures and properties to the widely investigated poly(amidoamine) (PAMAM) dendrimers.…”

In situ synthesis and characterization of lead sulfide nanocrystallites in the modified hyperbranched polyester by gamma-ray irradiation

“…Furthermore, hyperbranched polymers still maintain many of the architectural features of dendimers. Therefore, recently developed hyperbranched polymers are more attractive because of their simple synthesis routes, their unique highly branched molecular structures, and their large number of functional end groups in comparison with traditional linear polymers [9]. It is surprising, however, that reports on the preparation of nanoparticles in hyperbranched polymer are still less [10].…”

Preparation and characterization of novel hyperbranched poly(amine‐ester) films crosslinked by glutaraldehyde

“…The chemical crosslinking is a good way to improve the capability of the polymer and a well‐studied process of incalculable practical importance. Recently, the corresponding investigation of crosslinking macromolecules like HBPs have been mainly focused on the irradiation curing of HBPs containing double bonds,9–14 improving the surface properties of other polymers (polypropylene, polyethylene etc. ),15–22 the reversible crosslinking23 and the crosslinking options of HBPs 24.…”

“…),15–22 the reversible crosslinking23 and the crosslinking options of HBPs 24. Although the advantages of high functionality, broad variety of functional groups make HBPs ideally outlined for film forming applications by crosslinking the end groups, the fabrication of HBPs into a larger matrix material (e.g., in thicker films or plates) with a certain function was rarely taken into account 14, 16, 25…”

“…24 Although the advantages of high functionality, broad variety of functional groups make HBPs ideally outlined for film forming applications by crosslinking the end groups, the fabrication of HBPs into a larger matrix material (e.g., in thicker films or plates) with a certain function was rarely taken into account. 14,16,25 In the present work, the crosslinked hyperbranched poly(amine-ester) (HPAE) films with ace-tal/hemiacetal linkages were prepared by crosslinking the hydroxyl groups of HPAE-OH with glutaraldehyde (GA). The influences of HPAE-OH molecular weight on the structure, hydrophilicity, swelling behavior, and protein absorption of the resultant films were studied.…”