ricinoleic acid polymerization
Polyricinoleic acid (PRA) is a biodegradable polymer of ricinoleic acid, a hydroxy fatty acid present in castor oil. In the screening of several synthesis procedures, the highest molecular weight and degree of conversion occurred when polyricinoleic acid, synthesized previously from ricinoleic acid using CAL as biocatalyst, was mixed with polyol and either CAL or RML. Ricinoleic acid is an 18-carbon hydroxy-fatty acid patent5 discloses the use of a polyester condensate having the hydroxyl group on the 12th carbon, and formed from diols, such as an alkanediol or poly- an MW of 298.25. Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Facultad de Ingeniería, Universidad Nacional de Mar del Plata – … •ricinoleic acid (12-Hydroxyoleic Acid) comprises approximately 90% of the fatty acid composition ... Fatty Acid halogens Oxidation, Polymerization Heat, oxygen, crosslink agent Polymerized oils Hydrogenation Hydrogen (moderate pressure) Hydroxystearates The toxicity of the polymers and terification of ricinoleic acid and sebacic acid followed by formulations with paclitaxel was examined by subcutaneous anhydride polymerization were examined as potential con- injection of liquid polymer samples or implantation of solid trolled delivery carrier for paclitaxel. In particular, EC selectively reacts with the phenolic group of VA to obtain in-situ 4-(2-hydroxyethoxy)-3-methoxybenzoate (EV), suitable for subsequent copolymerization with RA. Palaskar DV(1), Boyer A, Cloutet E, Alfos C, Cramail H. Author information: (1)Laboratoire de Chimie des Polymères Organiques, Université de Bordeaux, ENSCBP, 16 Avenue Pey-Berland, Pessac Cedex, F 33607 France. Depending upon the chain length, this … Integrating Ricinoleic Acid Derivates to Thermoset Polymers With Tunable Properties. Poly (sebacic co-ricinoleic acid) 2 : 8 used in this study is a hydrophobic polymer, built of natural fatty acids, which can be used for the release of hydrophobic or hydrophilic drugs. Ricinoleic acid (co) polymer rubber composition, ricinoleic acid (co) polymer rubber crosslinked product and use thereof JP4806438B2 (en) 2008-10-08: 2011-11-02: 住友ゴム工業株式会社: Rubber composition and pneumatic tire JP2013159248A (en) * 2012-02-07: 2013-08-19: Bridgestone Corp The second step, the CAL-catalyzed reaction between ricinoleyl-, undecenoyl structured TAG and ricinoleic acid, yielded approximately 10% of the desired structured triacylglycerols (TAG); however, a significant portion of the ricinoleic acid underwent self-polymerization as a … New fully biobased polyether/esters have been synthesized by a one-pot polymerization reaction of ricinoleic acid (RA), vanillic acid (VA) and ethylene carbonate (EC). Emanuel Hernández. In the present work, three novel AB-type monomers, namely, a mixture of 10-hydroxy-9-methoxyoctadecanoyl azide/9-hydroxy-10-methoxyoctadecanoyl azide (HMODAz), 12-hydroxy-9-cis-octadecenoyl azide (HODEAz) and methyl-N-11-hydroxy-9-cis-heptadecen carbamate (MHHDC) were synthesized from methyl oleate and ricinoleic acid using simple reaction steps. ... polyols made by anionic polymerization of propyl- ene oxide.
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