Synthesis and photopolymerization of 2‐(acryloyloxy)ethyl piperidine‐1‐carboxylate and 2‐(acryloyloxy)ethyl morpholone‐4‐carboxylate

Abstract

Two low-viscosity monomers, 2-(acryloyloxy)ethyl piperidine-1-carboxylate (AEPC II) and 2-(acryloyloxy)ethyl morpholone-4-carboxylate (AEMC), were synthesized with a non-isocyanate route. The photopolymerization kinetics was monitored by real-time infrared spectroscopy with a horizontal sample holder. The results indicated that AEPC II and AEMC had high ultraviolet curing rates and final double-bond conversions, which could reach 90 and 95%, respectively. The glasstransition temperatures of AEPC II/urethane acrylate resin (1/4 w/w), AEMC/urethane acrylate resin (1/4 w/ w), and isobornyl acrylate/urethane acrylate resin (1/4 w/w) mixtures were 37.5, 45.6, and 57 C, respectively. The crosslink density of the AEMC/urethane acrylate resin (1/4 w/w) mixture was lower than that of the isobornyl acrylate/urethane acrylate resin (1/4 w/w) mixture.

Synthesis and characterization of UV-cured epoxy acrylate resin with cyclic methacrylate as diluents

“…In the past decades, most studies of the cyclic (meth) acrylate were focused on its self-polymerization (Barkakaty et al, 2009;Wang et al, 2012) or copolymerization with other vinyl monomers (Nakano et al, 2014;Tsai et al, 2016;Xiao et al, 2011). These polymers were deeply investigated by most researchers in kinetics and properties such as optical and thermal stability (Akikazu et al, 1991;Barkakaty et al, 2009;Domínguez-Espinosa et al, 2005;Qu et al, 2014).…”

Μελέτη Της Φωτοχημείας Και Της Φωτοεκκινητικής Ικανότητας Διχρωμοφορικών Αρωματικών Κετονών Σε Σύστημα Φωτοπολυμερισμού ΜΜΑ Τύπου ΙΙ

“…Υπάρχει πληθώρα οργανικών και ανόργανων φωτοεκκινητών στη βιβλιογραφία. [242][243][244][245][246][247][248][249][250] Μεταξύ των κετονών έχουν αξιοποιηθεί ως φωτοεκκινητές τύπου Norish ΙΙ, ξεχωρίζουν η βενζοφαινόνη, [251][252][253][254][255][256][257] η καμφοροκινόνη [258][259][260][261][262][263] , οι βενζοΐνες [264][265][266] , η φλουορενόνη, [267] η ξανθόνη, [267] η θειοξανθόνη, [268][269][270] , η ανθρακινόνη [271] και παράγωγα τους. [272][273][274][275][276][277][278][279][280][281][282][283][284][285][286][287][288]…”