6338-34-7Relevant articles and documents
Selective Syntheses and Properties of Anionic Surfactants Derived from Isosorbide
Cho, Jung-Eun,Sim, Dae-Seon,Kim, Young-Wun,Lim, Jongchoo,Jeong, Noh-Hee,Kang, Ho-Cheol
, p. 817 - 826 (2018/09/12)
Two series of anionic surfactants (endo-5-O-alkyl isosorbide-2-O-propyl sulfonic acid sodium salt and exo-2-O-alkyl isosorbide-5-O-propyl sulfonic acid sodium salt) with straight alkyl chains (hexyl, octyl, decyl, and dodecyl) were synthesized from isosorbide derived from biomass, through steps of allylation, alkylation, and sulfonation. The selectivity and efficiency of the reactions were optimized by adjusting the solvent, catalyst, reactant molar ratio, and temperature. The product 2-O-allyl isosorbide was obtained with a yield of 81% and selectivity of 23:1 (endo:exo), and 2-O-alkyl isosorbide was obtained with a yield of 72% and selectivity of 24:1 (exo:endo). The synthesized anionic surfactants were characterized using the critical micelle concentration (CMC), surface activity, emulsion stability, foaming height, and the Turbiscan Stability Index. The CMC decreased with increasing alkyl chain length. The properties of endo form and exo form were compared.
ISOSORBIDE DERIVATIVE COMPOUNDS AND METHOD FOR PREPARING THE SAME
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Paragraph 0077-0079, (2018/02/28)
The present invention relates to an isosorbide derivative compound. The isosorbide derivative compound of the present invention has outstanding optical and thermal properties, and thus can be applied as polymeric materials. In addition, the isosorbide derivative compound, which is a natural substance-based eco-friendly and nontoxic material, can be an alternative to a bisphenol A-based polymeric material which may produce endocrine disrupters.COPYRIGHT KIPO 2016
Hybrid networks derived from isosorbide by means of thiol-ene photoaddition and sol-gel chemistry
Lorenzini,Versace,Gaillet,Lorthioir,Boileau,Renard,Langlois
, p. 4432 - 4440 (2014/10/15)
New bridged silsesquioxanes derived from isosorbide were synthesized, according to the sol-gel process, by acidic or basic hydrolysis and condensation of a bis-trimethoxysilyl precursor. The latter was prepared by thiol-ene photoaddition of 3-(trimethoxysilyl)-1-propane thiol on diallyl isosorbide ether synthesized by a phase-transfer-catalyzed reaction of allyl bromide with isosorbide. The structure of those hybrid networks prepared according to a sol-gel process was investigated by 29Si solid-state NMR and X-ray diffraction experiments. Acid hydrolysis leads to the formation of randomly branched structures while basic catalysis promotes the creation of clusters. The anisotropic character of the hybrid networks was evidenced by cross polarized optical light observations (birefringence), demonstrating an organization at the micrometric-scale. These hybrid networks derived from isosorbide showed a thermal stability up to 360 °C.