Polymers from sugars and unsaturated fatty acids: ADMET polymerisation of monomers derived from d-xylose, d-mannose and castor oil

Abstract

High molecular weight renewable polyesters are synthesised from an unsaturated fatty acid and structurally unmodified, hemicellulosic sugars, with post-polymerisation modification inducing semicrystallinity and allowing casting of transparent films.

Crosslinked xylose-based polyester as a bio-derived and degradable solid polymer electrolyte for Li+-ion conduction

“…1). 47 Polymers of varying molar mass were prepared via the acyclic diene metathesis (ADMET) polymerisation of monomer 1 (Table 1).…”

“…45,46 Herein, we report a novel SPE material utilising a polyester boasting 92 wt% biobased content in combination with the commonly used lithium bis(triuoromethanesulfonyl)imide (LiTFSI) salt as the source of lithium ions. The polyester, rst reported by our group last year, 47 is derived from D-xylose (a renewable monosaccharide) and 10-undecenoic acid (a castor oil derivative) and has been crosslinked with a small amount of 2,2 0 -(ethylenedioxy)diethanethiol (a dithiol resembling PEO) to render SPE membranes. Aer optimising the molar mass, crosslinking density and salt molarity of the SPEs, electrochemical measurements of the ionic conductivity, lithium transference number and electrochemical stability window were conducted, in addition to thermal, hydrolytic and mechanical stability studies.…”

Enzymatic Methods for the Manipulation and Valorization of Soapstock from Vegetable Oil Refining Processes

“…The use of soapstock as a source of FFAs for the synthesis of fine chemicals is to be further investigated to expand the variety of products that can be obtained. The possibility to prepare other biodegradable surfactants [83], monomers for bio-based biodegradable new-generation polymers [84,85], and additives for the cosmetic industry [86][87][88] has to be carefully investigated.…”

Synthesis of chimera oligopeptide including furanoid β-sugar amino acid derivatives with free OHs: mild but successful removal of the 1,2-O-isopropylidene from the building block

“…The removal of 2,3- O -isopropylidene acetals is also presented in acidic conditions of TFA (Bornaghi et al 2004 ; Ganapati and Arvind 2020 ; Ferreira et al 2020 ; Gelin et al 2020 ; Pogula et al 2020 ; Ahmed-Belkacem et al 2020 ), AcOH (Decultot et al 2020 ), HCl (Ko et al 2017 ) or BCl 3 (Yamamoto et al 2019 ; Yoo et al 2018 ). For deprotection of 1,2- O -isopropylidene moieties, fewer approaches were mentioned, including H 2 SO 4 (Masamune et al 2001 ; Yanaisaka et al 1970 ), HCl (Sorensen et al 2001 ; Yanaisaka et al 1970 ), TsOH (Yuan et al 2020 ; Sukumar et al 1986 ; Rosenthal and Cliff 1980 ), aqueous TFA (Piccini et al 2020 ; Fernandez-Bolanos and Lopez 2007 ) or cationic exchange resins (e.g. Dowex-50 H + ) (Weber et al 1986 ; Fleet and Smith 1985 ).…”