摘要:
The present invention provides novel 4- and 5-substituted 1,2,3-triazole moieties, with at least one remote polymerizable moiety. The novel mixtures of 4- and 5-substituted regioisomers of 1,2,3-triazole moieties can be separated by chromatography to provide the purified 4- and 5-substituted 1,2,3-triazole moieties. The novel mixtures of 4- and 5-substituted regioisomers of 1,2,3-triazole moieties, and the purified 4- and 5-substituted 1,2,3-triazole moieties, with at least one remote polymerizable moiety, can be converted to a wide variety of useful polymers. The novel compounds of the invention can be employed in a wide variety of compositions. E, Q, Z, X, a, and R1-R4, in the structures below, are defined herein.
摘要:
The present invention provides plasticized polymer compositions comprising an 7V-allcyl-2-pyrrolidone and a fatty acid ester. These compositions exhibit enhanced hardness, tensile strength, and/or elongation at break without the use of phthalate-based plasticizers. The plasticized polymeric compositions can be employed in a wide variety of applications, such as in sheeting, tubing, and coatings.
摘要:
The present invention provides novel functionalized mixtures 4- and 5-vinyl substituted regioisomers of 1,2,3-triazoles via 1,3-dipolar cycloaddition. Functionalized alkyne moieties with a terminal alcoholic functionality are reacted with functionalized organic moieties with a terminal leaving group and an azide to provide an alcoholic functionalized mixture of 4- and 5-substituted regioisomers of 1,2,3-triazole moieties. The mixture may be converted to a wide variety of useful functionalized mixtures of 4- and 5-vinyl substituted regioisomers of 1,2,3-triazole moieties, which in turn can be converted to a wide variety of useful polymers The novel alcoholic functionalized mixtures of 4- and 5-substituted regioisomers can be separated by chromatography to provide the purified 4- and 5-alcoholic functionalized substituted 1,2,3-triazole moieties. The novel compounds of the invention can be employed in a wide variety of compositions (Formulae (I), (II)); wherein R1, R2, R3, and R4, are defined herein.
摘要:
A radiation dosimetry method and associated devices for carrying out the method are disclosed herein. More particularly, a method and associated apparatus which compensates for variations in amounts of a radiation sensitive material in a radiation dosimetry film is provided.