Embodiments of the present application relate to polymers used as polymeric polyvalent hubs for liquid phase oligonucleotide synthesis. Methods for making an oligonucleotide by liquid phase oligonucleotide synthesis using the polymers are also provided.

Embodiments of the present application relate to polymers used as polymeric polyvalent hubs for liquid phase oligonucleotide synthesis. Methods for making an oligonucleotide by liquid phase oligonucleotide synthesis using the polymers are also provided.

Provided is a fireproof glue solution matrix and a preparation method thereof and a fireproof glue solution and a preparation method thereof. The fireproof glue solution matrix comprises silicon dioxide and also comprises a lubricating substance, wherein the lubricating substance is a copolymer of aromatic olefin and/or acrylic ester. The fireproof glue solution comprises the fireproof glue solution matrix. The fireproof glue solution prepared by the present invention has a viscosity of only 50-1000 cp, and is suitable for preparing laminated fireproof glass with a fireproof layer of thickness of less than 1 mm. In addition, the fireproof layer made of the fireproof glue solution has advantages of good fireproof and heat-insulating properties, high in hardness, high transmittance and good ultraviolet resistance performance.

Provided is a fireproof glue solution matrix and a preparation method thereof and a fireproof glue solution and a preparation method thereof. The fireproof glue solution matrix comprises silicon dioxide and also comprises a lubricating substance, wherein the lubricating substance is a copolymer of aromatic olefin and/or acrylic ester. The fireproof glue solution comprises the fireproof glue solution matrix. The fireproof glue solution prepared by the present invention has a viscosity of only 50-1000 cp, and is suitable for preparing laminated fireproof glass with a fireproof layer of thickness of less than 1 mm. In addition, the fireproof layer made of the fireproof glue solution has advantages of good fireproof and heat-insulating properties, high in hardness, high transmittance and good ultraviolet resistance performance.

Provided is a binder composition for a non-aqueous secondary battery electrode that can inhibit electrode swelling associated with repeated charging and discharging while also causing a secondary battery to display excellent cycle characteristics. The binder composition contains a graft copolymer having a structure in which a branch polymer is bonded to a backbone polymer. The backbone polymer includes a hydroxyl group-containing vinyl monomer unit in a proportion of not less than 5 mass % and not more than 89 mass % and has a weight-average molecular weight of not less than 1.010.sup.6 and not more than 2.010.sup.7. The branch polymer includes a water-soluble monomer unit that is formed from a water-soluble monomer having a solubility of not less than 0.01 g/100 g-H.sub.2O and not more than 25 g/100 g-H.sub.2O at a temperature of 20 C.

Provided is a binder composition for a non-aqueous secondary battery electrode that can inhibit electrode swelling associated with repeated charging and discharging while also causing a secondary battery to display excellent cycle characteristics. The binder composition contains a graft copolymer having a structure in which a branch polymer is bonded to a backbone polymer. The backbone polymer includes a hydroxyl group-containing vinyl monomer unit in a proportion of not less than 5 mass % and not more than 89 mass % and has a weight-average molecular weight of not less than 1.010.sup.6 and not more than 2.010.sup.7. The branch polymer includes a water-soluble monomer unit that is formed from a water-soluble monomer having a solubility of not less than 0.01 g/100 g-H.sub.2O and not more than 25 g/100 g-H.sub.2O at a temperature of 20 C.

Provided is a binder composition for a non-aqueous secondary battery electrode that can inhibit electrode swelling associated with repeated charging and discharging while also causing a secondary battery to display excellent cycle characteristics. The binder composition contains a graft copolymer having a structure in which a branch polymer is bonded to a backbone polymer. The backbone polymer includes a hydroxyl group-containing vinyl monomer unit in a proportion of not less than 5 mass % and not more than 89 mass % and has a weight-average molecular weight of not less than 1.010.sup.6 and not more than 2.010.sup.7. The branch polymer includes a water-soluble monomer unit that is formed from a water-soluble monomer having a solubility of not less than 0.01 g/100 g-H.sub.2O and not more than 25 g/100 g-H.sub.2O at a temperature of 20 C.

The invention concerns a method for preparing a dispersion of a hydrophilic phase in a lipophilic phase, comprising:a hydrophilic phase comprising at least one water-soluble (co)polymer, a lipophilic phase, at least one interface polymer consisting of at least one monomer of formula (I): Formula (I) in which, R1, R2, R3 are separately a hydrogen atom, a methyl group, a carboxylate group and ZX, Z is chosen from the group comprising C(O)O; C(O)NH; OC(O); NHC(O)NH; NHC(O)O; and a saturated or unsaturated, substituted or unsubstituted carbon chain comprising 1 to 20 carbon atoms capable of comprising one or more heteroatoms chosen from nitrogen and oxygen, X is a group chosen from the alkanolamides, sorbitan esters, ethoxylated sorbitan esters, glyceryl esters, and polyglycosides; and comprising a saturated or unsaturated, linear, branched or cyclic, optionally aromatic, hydrocarbon chain.

The invention concerns a method for preparing a dispersion of a hydrophilic phase in a lipophilic phase, comprising:a hydrophilic phase comprising at least one water-soluble (co)polymer, a lipophilic phase, at least one interface polymer consisting of at least one monomer of formula (I): Formula (I) in which, R1, R2, R3 are separately a hydrogen atom, a methyl group, a carboxylate group and ZX, Z is chosen from the group comprising C(O)O; C(O)NH; OC(O); NHC(O)NH; NHC(O)O; and a saturated or unsaturated, substituted or unsubstituted carbon chain comprising 1 to 20 carbon atoms capable of comprising one or more heteroatoms chosen from nitrogen and oxygen, X is a group chosen from the alkanolamides, sorbitan esters, ethoxylated sorbitan esters, glyceryl esters, and polyglycosides; and comprising a saturated or unsaturated, linear, branched or cyclic, optionally aromatic, hydrocarbon chain.

A method for dewatering of biological sludge is disclosed. The method includes addition of a flocculant to a biological sludge, which includes an aqueous phase and a suspended solid organic material, flocculating and dewatering the sludge. The flocculant includes a polymer composition, which includes a cationic crosslinked first polymer, which is selected from crosslinked polyamines, and a cationic second polymer, which is a polymer obtained by polymerization of (meth)acrylamide and cationic monomers, the second cationic polymer being polymerized in presence of the cationic first polymer.