The number
average molecular weight (Mn) and polydispersity (HI) values of comb copolymer were found as (Mn=6900g/mol), (HI=1.68).
[[bar.N].sup.0.sub.n], [[bar.N].sub.n], and p represent the original weighted
average molecular weight, the weighted
average molecular weight after scission happening, and the density, respectively.
A failed part returned from the field exhibited excessive reduction in
average molecular weight. A review of product that had not yet been assembled showed that the problem was greater than just an errant start-up part; the molecular weight of the product varied widely from marginal to considerably worse than what had been returned from the field.
The low-volatile oil had a wide molecular weight distribution (
average molecular weight of 400 g/mol with species up to 1000 daltons).
Where [M.sup.n] is the
average molecular weight and Mw is the weight-average molecular weight.
% of a polyhydroxyalkanoate with an
average molecular weight of at least 20,000 g/mol.
The new Lupolen UHM 5000 polyethylene grade, with an
average molecular weight of 5 million, is claimed to display strong wear resistance, a low coefficient of friction and stress crack resistance.
The number
average molecular weight and weight
average molecular weight of the PLA were determined by gel permeation chromatography (GPC) on a Waters 1515 HPLC system.
The EFSA opinion supports the following health claim for Barliv and other barley beta-glucans with
average molecular weight between 100 and 2000 kDa: "Barley beta-glucans have been shown to lower/reduce blood cholesterol.
Average molecular weight data are usually not readily available (Veregin et al., 1996a,b) and, if available, are presented as number-average molecular weight points evaluated at a limited number of conversion levels (usually, low-medium-high conversion; see, e.g., MacLeod et al.