Polymers rarely consist of a single molar mass; they are instead a distribution of molar masses. Because of the distribution of chain sizes it is common to use moments of the distribution to specify the molar mass of a resin. For example, the number average molar mass, Mn, is the total ...
When heat capacity is given in terms of the mass of a substance in grams it is called specific heat—the amount of heat required to raise the temperature of 1 g of a substance by 1 Celsius degree. (We choose to use units with specific heat, as many do, because it is desirable in ...
Groundmass ranges from single-spaced to double-spaced enaulic. At the macro-scale, the compound grains form the coarse fraction of the overall sediment, ranging from very fine gravel/very coarse to fine sand and in shape from angular to well rounded. The coarse component of the matrix materia...
The binary mixtures of varying composition were prepared by mass in special air-tight bottles. The solutions of each composition were prepared fresh and all properties were measured the same day. The masses were recorded on a Mettlar one pan balance, which can read up to fifth place of ...
We describe a method of partial moments devised for accurate simulation of the time/conversion evolution of polymer composition and molar mass. Expressions were derived that enable rigorous evaluation of the complete molar mass and composition distribution for shorter chain lengths (e.g., degree of ...