The urea molecules can be released slowly from the obtained copolymer materials in water through a combination of hydrolysis of the formed CONH
bonds and diffusion through the polymer mass, so that the rates of urea release are sensitive to the copolymer composition, structure, and average molecular weights.
The acquisition of Midcon by CONH
should enhance the ability for the new enterprise to raise capital and rejuvenate the existing oil operations," said Timothy N.
The changes in relative band intensities demonstrate the breakage of the CONH
bond--the C-O-C stretch becomes relaxed, and the reorientation of the C-N-C imide bond changes from transverse into axial orientation during corona aging.