w] is the weight-average molecular weight
, and k is a constant that is specific to the polymer being evaluated.
Let us now digress for a moment and try to anticipate the corresponding number- and weight-average molecular weight
developed a helical chiral polymer such as polylactic acid with a weight-average molecular weight
of 50,000-1,000,000, optical activity, and 20-80% crystallinity, showing enhanced piezoelectricity.
In the suspension polymerization step, BPO (Vetec Quimica Fina, minimum purity of 97 wt%) was used as the oil-soluble initiator and PVA (Vetec Quimica Fina, minimum purity of 98 wt%, degree of hydrolysis of 88%, and weight-average molecular weight
of 78,000 g/gmol) was used as the suspending agent.
000, and (a2) a melamine resin; and the organic solvent-based second colored coating composition (B) is a coating composition containing (b1) an acrylic resin containing a hydroxyl group, which has a hydroxyl group value in a range of 40-200 mgKOH/g and has a weight-average molecular weight
in a range of 3,000-15,000, (b2) a melamine resin having a content rate of a mononuclear melamine of 40 mass % and (b3) an acid catalyst.
8,597,621 B2; L'Oreal has patented an emulsion lipstick composition, in solid form, comprising water; a water-insoluble half acid and half amide crosslinked reaction product of at least one oil-soluble high carbon polar modified polymer comprising at least one C22-C40 monomer and modified with at least one hydrophilic unit, and having a weight-average molecular weight
of less than or equal to 30000 girnol and a crystallinity of 8-60% and at least one polyarnine, wherein the reaction product forms a matrix capable of entrapping water; at least one non-volatile solvent capable of solubilizing the oil-soluble high carbon polar modified polymer; and at least on high melting point wax.
The PLA resin has a weight-average molecular weight
of 500,000-1,500,000 and an intrinsic viscosity of at least 1.
The maximum weight-average molecular weight
of PLGA obtained in present work is 19,500 g/mol with the molar ratio of BuOH/Sn[(Oct).
The polar modified polymer is an oil-soluble polar modified polymer comprising at least one C2-C4 monomer and modified with at least one hydrophilic unit, and having a weight-average molecular weight
of less than or equal to 25,000 g/mol and a melting point above 75[degrees]C.