pegma

pegma

1. Any ancient construction material made of boards that are joined together.
2. A machine used in a Classical Roman amphitheater to facilitate a quick change of scenery on the stage.
References in periodicals archive ?
PEGMA (average Mn 750), 4-VP and HEMA were purchased from Sigma-Aldrich Trading Co.
A series of microspheres were prepared by AGET ATRP of 4VP, HEMA, and PEGMA in inverse emulsion under different conditions.
Elongated and slender Ribeiria with straight dorsal margin, with terminal umbo and with narrow pegma.
Shell slightly attenuated posteriorly, pegma in the anterior part of the shell is long and thin, placed high in the anterior part of the shell.
Results showed that the PEgDMAE formed highly exfoliated-intercalated nanocomposites, while the PEgD12 showed the worst behavior which was attributed to a an increase in molecular weight and a crosslinking reaction between PEgMA and this amine.
The Pegma Main Zone copper-nickel-cobalt prospect is on the Pekan River, south of Fermont, near the Quebec/Labrador boundary.
PVDF membranes functionalized by PEGMA hydrogels could resist the irreversible membrane fouling as compared with the pristine PVDF membranes.
5) reported that even small amounts of maleic anhydride grafted polyethylene, PEgMA, improved the dispersion of organoclay (5 wt%) in the HDPE matrix, and fully exfoliated composites were achieved with a 25 wt% of PEgMA.
14, the crosslinking reaction of the PEGMA drastically altered the stability.
It is proposed that the epoxy groups in PEGMA react with the hydroxyl groups from thermal degradation and form a stable crosslinking structure.
Blends with different content of MA were prepared by melt mixing of LLDPE with the different modified polyethylenes (LLDPE-gMA, PEgMA or DPEgMA) using a Werner and Pfleiderer twin-screw mixer (ZSK 30) operating at 220 [degrees] C and 60 rpm.
Determination of MA Content of PEgMA Copolymer by Volumetric Titration (Table 3)