The higher temperatures of melting of waxes in oil asphaltenes confirm the higher molecular weight composition of waxes in them.
Products thus obtained have been investigated in terms of molecular weight, composition, structure, and thermal properties.
Their size and solution property were depended upon polymer molecular weight, composition, and cross-linking degree.
The products are P E-cb-P) comb block P E-cb-P with bimodalities in molecular weight, comP E-cb-P, and long combn blockhing.
The article describes how kinetics and mechanisms couple with synthesis conditions to influence molecular weight, composition, and architecture of the polymer product.
These studies show the effect of structure, molecular weight, composition, side groups and thermal history on the thermal transitions of these materials.
Phosphonated polymers with a well-defined molecular weight, composition and architecture have been prepared via ring opening metathesis polymerization (ROMP) of phosphonated and non-phosphonated norbornene imides at room temperature for the first time.
The topology and morphology of the free surface of styrene-butadiene diblock copolymers were investigated by transmission electron microscopy as functions of molecular weight, composition, diene configuration, casting solvent and solvent evaporation rate.
The influence of molecular weight, composition (mid-block mole fraction), and interaction parameter on the crystallinity and on the formation of an ordered nanoscale phase-separated structure was investigated using thermal analysis, X-ray scattering, and electron microscopy.
With the advent of living radical polymerization (LRP), well-defined polymers with varying molecular weights, compositions and architectures were synthesized to evaluate their potency as gene delivery vectors.
