More than 30 years after the synthesis of isotactic poly-l-butene there is still no large
commercial production of the resin, nor major applications to compare with those of the …

Abstract Fifty years ago, Karl Ziegler and his co‐workers discovered the synthesis of
polyethylenes at low pressures and moderate high temperatures with transition‐metal …

The polyolefins production has increased rapidly in the 40 years to make polyolefins the
major tonnage plastics material worldwide. In 2003, 55 million tons of polyethene and 38 …

A relatively compact, but nonetheless comprehensive, review of the most important
preparative methods for the synthesis and chemical modification of polymers. The contents …

The molecular weight and molecular weight distribution of a polymer can markedly affect its
mechanical properties. While this has been recognized for a long time, quantitative studies …

The linear PLLA/PDLA blends were prepared by solution mixing method, and the melting
behavior and structure evolution of neat PLLA and PLLA/PDLA specimens were …

Samples of very low molecular‐weight fractions of isotactic polypropylene have been
crystallized by means of a solvent‐evaporation technique as well as by melt recrystallization …

Isotactic polypropylene (iPP) is a thermoplastic material of vast importance. The ever-
increasing demand for it is derived from its useful physical properties and the availability of …

The kinetics of the crystallization of isotactic polybutene‐1 from the melt and of the
transformation of modification 2 to modification 1 are studied by dilatometric measurements …

A historical survey about the development of Ziegler‐Natta catalysts for polymerization of
propylene is given. After having employed catalysts based on titaniumtrichloride for several …