C&EN

Polypropylene Found In New Form

Isotactic polypropylene (iPP), the number-two commercial polymer, was known for decades to adopt three crystalline forms, α, β, and γ, and in the past decade a fourth form, δ, was identified. Now, a ...
Nature

Structure and mechanical anisotropy of injection-molded polypropylene with a plywood structure

Injection-molded isotactic polypropylene (PP) containing a small amount of the β-nucleating agent N,N′-dicyclohexyl-2,6-naphthalenedicarboxamide exhibits a unique molecular orientation that is similar ...
AZOM

Polypropylene - PP 20% Talc Filled

Polypropylene is a highly versatile and economical thermoplastic polymer. Belonging to the group of polyolefins, this polymer is non-polar and partially crystalline. The monomer of polypropylene is ...
Nature

Temperature Dependence of Crystal Growth Rate for α and β Forms of Isotactic Polypropylene

F. J. Padden and H. D. Keith, J. Appl. Phys., 30, 1479 (1959). D. R. Norton and A. Keller, Polymer, 26, 704 (1985). F. L. Binsbergen and B. G. M. De Lange, Polymer, 9 ...