Two new lignans with dibenzocycloheptadiene skelectons have been synthesized by intramolecular nonphenolic oxidative coupling and rearrangement. The structures
Amorphous poly (L-2-hydroxy-3-phenylpropanoic acid) (PLHPPA) was synthesized by the microwave-assisted polycondensation of L-2-hydroxy-3-phenylpropanoic acid (L
A new monoterpene glucoside, (2E,6Z)-2,6-dimethyl-8-b-D-glucosyloxy-2,6-octadien- oic acid, was isolated from the leaves of Betula platyphylla Suk. The structur
The rheometrics ARES rheometer was applied to determining the rheological behavior of a thermotropic liquid crystalline poly (aryl ether ketone). The viscosity
Antigen 12, containing a phosphonyl peptide hapten with free C-terminal carboxylic group, was synthesized by 11 reaction steps. The design of the hapten was ba
An aliphatic polyester, poly(hexalene adipate) (PHA) and an aliphatic copolyester, poly (hexalene adipate succinate) (PHAS) were synthesized by direct condensat