摘要:
A compound having Formula (I) or Formula (II) or a mixture thereof, in which R is H; CH3; CH-(CH3)2; CH2-CH-(CH3)2; CH-(CH3)-CH2-CH3; CH2-(C6H5); CH2-(3-indole); CH2-CH2-S-CH3; CH2-OH; CH-(CH3)-OH; CH2-SH; CH2-(p-C6H4OH); CH2-CH2-CH2-CH2-NH2; CH2-CO-NH2; CH2-CH2-CO-NH2; CH2-CH2-COOH; CH2-COOH; or CH2-CH2-NH- C=NH2(NH2); and X is a suitable non-interfering anion, a process for making the compound having Formula (I) or Formula (II), and a process for reacting the compound having Formula (I) or Formula (II) or a mixture thereof with a (poly)saccharide to form a cationized (poly)saccharide.
摘要:
A melt-processable conductive material including a first continuous phase, a second continuous phase and a non-continuous phase. The first continuous phase includes a first polymer, the second continuous phase includes a second polymer, and the non-continuous phase includes a third polymer. The second continuous phase is co-continuous with the first continuous phase and the non-continuous phase is substantially contained within the first continuous phase. A plurality of conductive particles is distributed in the first polymer or at a boundary between the first continuous phase and the second continuous phase. The conductive particles form a conductive network.
摘要:
Porous polymeric networks and composite materials comprising metal nanoparticles distributed in the polymeric networks are provided. Also provided are methods for using the polymeric networks and the composite materials in liquid- and vapor-phase waste remediation applications. The porous polymeric networks, are highly porous, three-dimensional structures characterized by high surface areas. The polymeric networks comprise polymers polymerized from aldehydes and phenolic molecules.
摘要:
The present invention relates to nitric oxide delivering hydroxyalkyl starch derivatives, methods of preparing the same, and specific uses of these hydroxyalkyl starch derivatives.
摘要:
A meit-extruded substrate (e.g., fiim, nonwoven web, etc.) that contains a thermoplastic starch formed from a starch and plasticizer is provided. The starch and plasticizer are melt blended together in the presence of a weak organic acid (e.g., lactic acid, formic acid, acetic acid, etc.). By selectively controlling certain parameters of the melt blending process (e.g., extrusion temperature, content of the components, etc.), the present inventors have discovered that the starch may be hydrolyzed in a highly efficient manner to form compositions having a comparably lower weight average molecular weight, polydispersity index, and viscosity, which are particularly suitable for use in the formation of melt-extruded substrates.
摘要:
Film-forming compositions are disclosed that can comprise, on a dry solids basis, 25 to 75 % by weight of certain starch derivatives and 25 to 75 % primary external plasticizer. The starch derivatives can be chemically modified starches that range in molecular weight from 100,000 to 2,000,000. The high levels of plasticizer in the films give excellent film flexibility and integrity.
摘要:
The invention concerns film-forming compositions containing pectin, at least one additional film-forming polymer and a setting system for use in pharmaceutical, veterinary, food, cosmetic or other products like films for wrapping food, aspics or jellies, preferably for predosed formulations like soft or hard capsules, as well as aqueous solutions of the compositions for the manufacturing of said products.
摘要:
Film-forming compositions are disclosed that can comprise, on a dry solids basis, 25 to 75 percent by weight of certain starch derivatives and 25 to 75 % primary external plasticizer. The starch derivatives can be chemically modified starches that range in molecular weight from 100,000 to 2,000,000. The high levels of plasticizer in the films give excellent film flexibility and integrity. The films are also resistant to penetration by water, oil and/or grease.