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Rosin-based Ethoxylates
Advanced Bio-based Surfactants
Rosin-base ethoxylates, also known for their other names such as Rosin PEG derivatives, Rosin surfactants, ethylene oxide adducts or Resin acid ethoxylates, are a very latest class of bio-based chemicals that are synthesized from natural rosin derivatves. The Rosin-base EOs are synthesized by controlled ethoxylation of diverse rosin derivatves such that these comprise specially structured amphiphilic building blocks that comprise hydrophobic rosin backbone with selectively adjustable hydrophilic polyoxyethylene chains.
The ethoxylation process involves ring-opening polymerisation of ethylene oxide (EO) molecules, whereby the chain length of the polyoxyethylene chain can be controlled with great accuracy. Such product property customisation—i.e., of surface tension, emulsification ability, and CMC—allows for targeted product properties for specified industrial end-uses. Owing to their amphiphilic character, such molecules spontaneously self-associate into micelles when added to water and considerably improve solubilisation, emulsification, and dispersion of end-use formulations.
Different rosin derivatives like rosin acids, rosin alcohols, rosin amines, and pentaerythrityl rosinate form the hydrophobic base of these products. Due to their being ethoxylated, these functional entities form an ester or ether bond with their polyoxyethylene chains to endow superior surface activity, wetting, dispersant, and emulsifying abilities. Significantly, rosin-based ethoxylates are low in toxicity and of superior biodegradability and hence serve as an environmentally friendly alternative to typical petrochemical surfactants.
Applications of Rosin-based EOs include:
Rosin-based EOs can provide sustainable sources with variable performance values and thus are best suited to modern green chemistry applications and sustainable industrial needs. By choosing Rosin-based ethoxylates and matching ethylene oxide adducts, products can get the low-toxicity, bio-based surfactant system that performs great in many challenging applications and can accommodate product safety and environmental stewardship both.