Photoinduced insolubilization of SBS–acrylate films of high thickness under 405nm

Belon, Cindy; Esen, Hüseyin; Barghorn, Céline Croutxé; Allonas, Xavier

doi:10.1016/j.porgcoat.2012.09.023

Cited by 1 publication

(2 citation statements)

References 22 publications

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“…Furthermore, both the reaction rate and the final degree of conversion could be increased by the addition of a bisphenol A diacrylate oligomer. In a subsequent publication, high-speed photo-cross-linking of SBS triblock copolymers in the presence of a trifunctional thiol cross-linker was described. , Both the vinyl and the butene double bonds of the polybutadiene phase were found to react during the polymerization, as also confirmed in other studies . Another noteworthy contribution was the successful grafting reaction of a photoinitiator onto the SBS backbone with subsequent UV-cross-linking experiments .…”

Section: Heterogenization Strategiessupporting

confidence: 53%

“…276,277 Both the vinyl and the butene double bonds of the polybutadiene phase were found to react during the polymerization, as also confirmed in other studies. 280 Another noteworthy contribution was the successful grafting reaction of a photoinitiator onto the SBS backbone with subsequent UV-cross-linking experiments. 281 The gel fraction of the cured polymer could be adjusted by the grafting ratio and UV exposure time.…”

Section: Chemical Heterogenizationmentioning

confidence: 99%

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From Unregulated Networks to Designed Microstructures: Introducing Heterogeneity at Different Length Scales in Photopolymers for Additive Manufacturing

Ahmadi,

Ehrmann,

Koch

et al. 2024

Chem. Rev.

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Photopolymers have been optimized as protective and decorative coating materials for decades. However, with the rise of additive manufacturing technologies, vat photopolymerization has unlocked the use of photopolymers for three-dimensional objects with new material requirements. Thus, the originally highly cross-linked, amorphous architecture of photopolymers cannot match the expectations for modern materials anymore, revealing the largely unanswered question of how diverse properties can be achieved in photopolymers. Herein, we review how microstructural features in soft matter materials should be designed and implemented to obtain high performance materials. We then translate these findings into chemical design suggestions for enhanced printable photopolymers. Based on this analysis, we have found microstructural heterogenization to be the most powerful tool to tune photopolymer performance. By combining the chemical toolbox for photopolymerization and the analytical toolbox for microstructural characterization, we examine current strategies for physical heterogenization (fillers, inkjet printing) and chemical heterogenization (semicrystalline polymers, block copolymers, interpenetrating networks, photopolymerization induced phase separation) of photopolymers and put them into a material scientific context to develop a roadmap for improving and diversifying photopolymers' performance.

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