1 Age in years is for student at the start of the academic year-about early September for most schools in the UAE, early April for Indian and Pakistani schools. 2  Check the exact date with the school if your child has a birthday around this time.
The repeating structural unit of most simple polymers not only reflects the monomer(s) from which the polymers are constructed, but also provides a concise means for drawing structures to represent these macromolecules. For polyethylene, arguably the simplest polymer, this is demonstrated by the following equation.
They cover configuration and conformation of macromolecules in polymer crystals, the packing of macromolecules in polymer crystals, determining crystal structure from X-ray diffraction, defects and disorder in polymer crystals, analyzing diffuse scattering from disordered structures of polymers, crystal habits, and the influence of crystal defects and structural disorder on the physical and mechanical properties of polymeric materials.