摘要:
The present invention relates to a method of preparing a modified conjugated diene-based polymer, and more particularly, to a method of preparing a modified conjugated diene-based polymer, including: preparing an active polymer with an organic metal bonded thereto by polymerizing a conjugated diene-based monomer in a hydrocarbon solvent in the presence of an organometallic compound (S1); and mixing the active polymer prepared according to process S1 with a modifier (S2), wherein the mixing of process S2 is performed at a Reynolds number of 20 or less for 1 minute or more, the Reynolds number being maintained within a range of ±5 of a Reynolds number when the modifier is added (wherein the range is between greater than 0 to 20 or less) .
摘要:
The present invention relates to an imine group-containing novel compound which is useful as a polymer modifier, a modified conjugated diene-based polymer including a functional group derived from the novel compound and having excellent affinity with a filler, a method for preparing the polymer, and a rubber composition including the polymer, and provides an imine group-containing compound represented by Formula 1, a modified conjugated diene-based polymer including a functional group derived therefrom, and a method for preparing the polymer.
摘要:
The present invention relates to a continuous preparation system of a conjugated diene-based polymer, by which the control of a polymerization conversion ratio at an initial stage of polymerization is easy, and productivity is excellent.
摘要:
The present invention relates to a modified conjugated diene-based polymer, and more particularly, to a modified conjugated diene-based polymer having a unimodal shape of gel permeation chromatography (GPC) molecular weight distribution curve, molecular weight distribution (PDI; MWD) of less than 1.7, and a Si content of 100 ppm or more based on weight, and including a repeating unit derived from an aromatic vinyl monomer in an amount of 30 wt% or more, and a rubber composition including the same.
摘要:
The present invention relates to a method for producing a modified polymerization initiator, and more particularly, to a method for preparing a modified polymerization initiator, wherein the method includes the steps of: (S1) introducing a first fluid through an first fluid inlet and a second fluid through a second fluid inlet into a reactor having the first fluid inlet including a first functional group-containing compound and the second fluid inlet including a second functional group-containing compound, and reacting the first functional group-containing compound with the second functional group-containing compound, and (S2) obtaining the modified polymerization initiator prepared by the reaction of the step (S1) through an outlet of the reactor, wherein the step (S1) and step (S2) are continuously performed, wherein in the step (S1), the flow amount of the first fluid and the second fluid is maintained constant at the time when the first fluid and the second fluid are mixed, and the flow rate of the first fluid is increased. Also, the present invention provides an apparatus for producing a modified polymerization initiator for performing the same.
摘要:
The present invention relates to a method for preparing a modification initiator, the method capable of reducing side reactions to the minimum and obtaining the modification initiator with a high conversion rate, and a device for producing a modification initiator, the apparatus for performing the same, wherein the method includes (S1) reacting a first fluid including a modification functional group-containing compound and a conjugated diene-based monomer and a second fluid including a polymerization initiation functional group-containing compound, and (S2) obtaining a third fluid including a modification initiator prepared by the reaction of Step S1, wherein the modification functional group-containing compound is used in a ratio of greater than 1 mole based on 1 mole of the polymerization initiation functional group-containing compound, the conjugated diene-based monomer is used in a ratio of 1 mole to 4 moles based on 1 mole of the modification functional group-containing compound, and Step S1 and Step S2 are continuously performed.
摘要:
The present invention relates to a neodymium-catalyzed modified conjugated diene-based polymer having excellent affinity with a filler, a method for preparing the same and a rubber composition including the same, and provides a neodymium-catalyzed modified conjugated diene-based polymer including a repeating unit derived from a conjugated diene-based monomer; and a functional group derived from a modifier represented by Formula 1 in at least one terminal of a polymer.
摘要:
A novel polymeric compound is provided. The polymeric compound is highly compatible with reinforcing materials. Particularly, the polymeric compound is highly miscible with inorganic reinforcing materials in the manufacture of a tire. Further provided is a novel bifunctional initiator necessary to prepare the polymeric compound. The bifunctional initiator contains amine moieties. Active ends of the polymer are modified with an alkoxysilane compound. The polymer has an improved affinity for carbon black and silica as reinforcing materials in the manufacture of a tire. Therefore, the use of the polymer can achieve desired physical properties required in a tire, e.g., high wet traction, low rolling resistance and high tread wear.
摘要:
The present invention relates to a method for preparing a modified conjugated diene-based polymer having excellent physical properties such as tensile properties and viscoelasticity properties with a high modification ratio.
摘要:
The present invention relates to a method for preparing a modified conjugated diene-based polymer, and more particularly, provides a method for preparing a modified conjugated diene-based polymer including a step of polymerizing a conjugated diene-based monomer in the presence of an organometal compound in a hydrocarbon solvent to prepare an active polymer which is coupled with an organometal (Sl); and a step of reacting or coupling the active polymer prepared in step (Sl) with a modifier (S2), wherein step (Sl) is continuously performed in two or more polymerization reactors, and a polymerization conversion ratio in a first reactor among the polymerization reactors is 50% or less.