“…These photocrosslinkable cinnamoyl-conjugated bio-based polymers are widely prepared by condensing the carboxylic acid of cinnamic acid with hydroxyl or amino groups of bio-based building blocks [451]. Cinnamoyl moieties were therefore associated with biodegradable polyesters such as poly(lactic acid) and poly(-caprolactone) [452], gelatin [453][454][455], hyaluronic acid [456][457][458], alginate [459,460] and hydroxylpropyl cellulose [460], but also benzoxazines, lithocholic acid [461], oil-based ricinoleic acid [462], acrylate monomers [463] and butyl rubber derivatives [464]. Polymers containing cinnamoyl moieties have been used in a wide of applications to produce photo-crosslinked polymer materials [465][466][467][468][469][470], photo-crosslinked hydrogels [471][472][473], materials for photoinduced alignment of liquid crystals [474][475][476][477][478], in advanced microelectronics [479], in photolithography [480], in non-linear-optical materials [481], and for the synthesis of photocurable coatings [482].…”