Polyurethanes and polyesters from lignin
β Scribed by Carlo Bonini; Maurizio D'Auria; Lucia Emanuele; Rachele Ferri; Rachele Pucciariello; Anna Rita Sabia
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 227 KB
- Volume
- 98
- Category
- Article
- ISSN
- 0021-8995
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π SIMILAR VOLUMES
Polyurethane films were prepared from the reaction of cardanollignins (CL) with a different cardanolpignin ratio and toluene diisocyanate. The crosslink density, the glass transition temperature and the mechanical properties of the obtained films were also determined. The increase of cardanol conten
## Abstract Triols of molecular weights (MWs) 1000β4000, suitable for flexible foams, were prepared by transesterification of methyl esters of ricinoleic acid with trimethylol propane. These polyols were noncrystallizing, relatively lowβviscosity liquids. They were reacted with diphenylmethane diis
Almtract--New polyesters were prepared by reacting 2,6-di(4-hydroxystyryl)pyridine (DHSP) with terephthaloyl or adipoyl chloride utilizing the interfacial polycondensation method. In addition, new polyurethanes were prepared by reaction of DHSP with a diisocyanate such as tolylene diisocyanate, meth
## Abstract Polyalkylenehydroxybenzoates (PAHBs) are a new class of thermoplastic, biorenewable aromatic/aliphatic polyester having the general formula Hβ[Oβ(CH~2~)~__n__~βOβ4β(3βX, 5βYβC~6~H~2~)βCO]~__z__~βOH. These are synthesized from the ligninβderived aromatics 4βhydroxybenzoic acid (Xβ=βYβ=βH