Branched polymers own special properties derived from their intrinsic characteristics. These properties make them ideal candidates to be used as carriers for an improved generation of polymer-drug conjugates.
Waterborne pressure
sensitive adhesives with biobased contents
up to 72% and adhesive performance comparable to pure oil-based formulations
have been developed. For that, partially biobased commercial 2-octyl
acrylate and isobornyl methacrylate monomers (derived from castor
oil and pine resin, respectively) are copolymerized by emulsion polymerization,
an environmentally friendly procedure which allows fine-tuning the
microstructure of the copolymer at high solids content as well as
notably reducing the VOCs in the final product. Formulations with
well balance adhesiveness and cohesiveness are achieved, and the reasons
are thoroughly discussed. Furthermore, the moderate reduction of the
biocontent by the substitution of part of 2-octyl acrylate by the
oil-based 2-ethylhexyl acrylate provides trade off waterborne formulations
with very promising adhesive properties.
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