منابع مشابه
Highly Branched Bio-Based Unsaturated Polyesters by Enzymatic Polymerization
A one-pot, enzyme-catalyzed bulk polymerization method for direct production of highly branched polyesters has been developed as an alternative to currently used industrial procedures. Bio-based feed components in the form of glycerol, pentaerythritol, azelaic acid, and tall oil fatty acid (TOFA) were polymerized using an immobilized Candida antarctica lipase B (CALB) and the potential for an e...
متن کاملAn Insight into the Flammability of Some Bio-Based Polyesters
Abstract: The heat release capacity of polymers can be generally predicted using a method based on the additivity of group contributions (the Van Krevelen approach). Nevertheless, there are some exceptions, evidencing that this approach is insufficient and must be completed. In this study, the kinetic triplet accounting for the description of pyrolysis is identified for 11 polymers. Activation ...
متن کاملN-Alkylated dinitrones from isosorbide as cross-linkers for unsaturated bio-based polyesters
Isosorbide was esterified with acryloyl chloride and crotonic acid yielding isosorbide diacrylate (9a) and isosorbide dicrotonate (9b), which were reacted with benzaldehyde oxime in the presence of zinc(II) iodide and boron triflouride etherate as catalysts to obtain N-alkylated dinitrones 10a/b. Poly(isosorbide itaconite -co- succinate) 13 as a bio-based unsaturated polyester was cross-linked ...
متن کاملOne-pot atom-efficient synthesis of bio-renewable polyesters and cyclic carbonates through tandem catalysis.
One-pot synthesis of well-defined bio-renewable polyesters and cyclic carbonates in high yields was successfully realized for the first time by way of a tandem reaction using metal salen complexes as catalysts. This tandem process offered unprecedented opportunities for the atom-efficient production of two relevant compounds.
متن کاملNanofibrous Scaffolds of Bio-polyesters: In Vitro and In Vivo Characterizations and Tissue Response
Hui Ying Tang1,2, Daisuke Ishii3, Kumar Sudesh1, Tetsuji Yamaoka4 and Tadahisa Iwata2,5 1School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, 2Bioengineering Laboratory, RIKEN Institute / Hirosawa 2-1, Wako-shi, Saitama 351-0198, 3Department of Materials Chemistry, Faculty of Science and Engineering, Ryukoku University / 1-5 Yokotani, Seta Oe-cho, Otsu-shi, Shiga 520-2194, 4D...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sen'i Gakkaishi
سال: 2009
ISSN: 0037-9875,1884-2259
DOI: 10.2115/fiber.65.p_16