An example of a kit includes a flow cell, a primer fluid, and a cleaving fluid. The flow cell includes at least one surface functionalized with a polymeric hydrogel including azide functional groups or amine functional groups. The primer fluid includes a plurality of alkyne-containing primers, each alkyne-containing primer having an amino cleavable group attaching a primer sequence of the alkyne-containing primer to an alkyne-containing moiety of the alkyne-containing primer. The cleaving fluid includes a substance that is reactive with the amino cleavable group.

A catalytic composition for preparing a polyethylene terephthalate (PET) resin is provided. The catalytic composition comprises a polycondensation catalyst and cesium tungsten oxide (Cs.sub.xWO.sub.3-yCl.sub.y), and 0<x≦1 and 0≦y≦0.5. A PET resin prepared by the catalytic composition above is also provided. The PET resin comprises 2-80 ppm of cesium tungsten oxide. This catalytic composition can solve the problems of slow solid-state polymerization rate of the PET preparation and thus the long preparation time, as well as yellowing. Moreover, the PET resin can absorb infrared radiation.

The present invention relates to a process for preparing polyoxyalkylene polyester polyols by reacting a starter compound having Zerewitinoff-active H atoms, a cyclic dicarboxylic acid anhydride and a fatty acid ester with an alkylene oxide in the presence of a basic catalyst. The invention further relates to polyoxyalkylene polyester polyols resulting from the method and to a preparation method for polyurethanes by reaction of the polyoxyalkylene polyester polyols according to the invention.

The present invention relates to a process for preparing polyoxyalkylene polyester polyols by reacting a starter compound having Zerewitinoff-active H atoms, a cyclic dicarboxylic acid anhydride and a fatty acid ester with an alkylene oxide in the presence of a basic catalyst. The invention further relates to polyoxyalkylene polyester polyols resulting from the method and to a preparation method for polyurethanes by reaction of the polyoxyalkylene polyester polyols according to the invention.

Polylactide resins are branched by reaction with a mixture of a polyene compound and a cyclic peroxide. This branching method produces a product that has a very high polydispersity, a high branching number (B.sub.n) and excellent melt strength, without forming large amounts of gelled material. The branched polylactide resins are useful in many melt processing operations, in particular sheet and film extrusion, extrusion foaming, extrusion coating and fiber processing. They are characterized by easy processing and allow for broadened processing windows.

A polyester copolymer, having a number average molecular weight of equal to or more than 4000 gram/mole and having a glass transition temperature of less than 140° C., containing: (a) in the range from equal to or more than 45 mole % to equal to or less than 50 mole % of one or more bicyclic diol monomer units derived from the group consisting of isosorbide, isoidide, isomannide, 2,3:4,5-di-O-methylenegalactitol and 2,4:3,5-di-O-methylene-D-mannitol; (b) in the range from equal to or more than 25 mole % to equal to or less than 49.9 mole %, of an oxalate monomer unit; (c) in the range from equal to or more than 0.1 mole % to equal to or less than 25 mole % of one or more linear C3-C12 dicarboxylate monomer units; and (d) optionally equal to or more than 0 mole % to equal to or less than 5 mole % of one or more additional monomer units, the percentages based on the total amount of moles of monomer units within the polyester copolymer.

A polyester copolymer, having a number average molecular weight of equal to or more than 4000 gram/mole and having a glass transition temperature of less than 140° C., containing: (a) in the range from equal to or more than 45 mole % to equal to or less than 50 mole % of one or more bicyclic diol monomer units derived from the group consisting of isosorbide, isoidide, isomannide, 2,3:4,5-di-O-methylenegalactitol and 2,4:3,5-di-O-methylene-D-mannitol; (b) in the range from equal to or more than 25 mole % to equal to or less than 49.9 mole %, of an oxalate monomer unit; (c) in the range from equal to or more than 0.1 mole % to equal to or less than 25 mole % of one or more linear C3-C12 dicarboxylate monomer units; and (d) optionally equal to or more than 0 mole % to equal to or less than 5 mole % of one or more additional monomer units, the percentages based on the total amount of moles of monomer units within the polyester copolymer.

A photoelectric conversion compound is provided. The photoelectric conversion compound has a structure represented by formula (I):

##STR00001##

wherein D represents an inorganic luminescent group; each of R.sup.1, R.sup.2, and R.sup.3 independently represents a hydrogen atom or a C.sub.1-6 alkyl group; R.sup.4 represents a single bond or a C.sub.1-6 alkylene group; m represents an integer of 1-10; k represents an integer of 1-1,000; and n represents an integer of 1-10,000.

The present invention relates to a process for polymerizing lactide comprising the steps of a) preparing a liquid catalyst formulation comprising a catalyst, an initiator and lactide, and b) contacting the liquid catalyst formulation prepared in step a) with lactide, and polymerizing said lactide in the presence of said liquid catalyst formulation to form polylactide. The invention further provides a liquid catalyst formulation and use thereof for polymerizing lactide.

Provided are new metal complexes having phenolic and macrocyclic amino ligands as well as to their use, in particular use for bleaching catalyst for detergent compositions and oxidative crosslinking catalyst for resins, containing said metal complexes. A formulation comprises at least a detergent, a metal complex, and optionally a source of hydrogen peroxide.