摘要:
To provide a polymer product, which contains aliphatic polycarbonate, wherein an oxide unit content in the aliphatic polycarbonate is 20 mol % or less, and wherein a monomer content in the aliphatic polycarbonate is 500 ppm or less, where the monomer is a monomer that is a base of the aliphatic polycarbonate.
摘要:
To provide a polymer production apparatus, which contains: a first supply unit configured to supply raw materials including a monomer; a second supply unit configured to supply a compressive fluid; a contact unit configured to bring the monomer into contact with the compressive fluid; and a reaction unit configured to allow the monomer, which has been brought into contact with the compressive fluid, to react in the presence of the compressive fluid, wherein the reaction unit contains one, or two or more extrusion devices, and one, or two or more stirring devices.
摘要:
Provided is a polymer product that has a melting point difference (Tm1−Tm0) of 3° C. or more between a polymer melting point Tm0 before it is heated and a polymer melting point Tm1 after it is heated under a nitrogen atmosphere for 60 minutes at a temperature that is higher than the highest polymer melting point by from 10° C. to 50° C.
摘要:
To provide a method for producing a polymer, which contains: bringing a ring-opening polymerizable monomer containing an amide bond, and a compressive fluid into contact with each other to melt or dissolve the ring-opening polymerizable monomer containing an amide bond, followed by allowing the ring-opening polymerizable monomer containing an amide bond to react through ring-opening polymerization in the presence of a basic organic metal catalyst and a cocatalyst, to thereby obtain a polymer product.
摘要:
Provided is a polymer product, in which the weight average molecular weight measured by gel permeation chromatography is 250,000 or greater and the content of residual ring-opening-polymerizable monomer is 100 ppm by mass or greater but less than 1,000 ppm by mass, or a polymer product, in which the content of residual ring-opening-polymerizable monomer is from 1,000 ppm by mass to 20,000 ppm by mass and the yellow index (YI) value is 15 or less.
摘要:
A polymer production apparatus, including: supplying unit containing first supplying unit to supply raw materials containing monomer, and second supplying unit to supply compressive fluid; contacting unit to bring the monomer and the compressive fluid into contact together; and outlet configured to discharge reaction product of the monomer, wherein reaction unit is provided between the contacting unit and the outlet, where the reaction unit is to pass the monomer from the contacting unit side to the outlet side, while allowing the monomer to carry out a polymerization reaction in the presence of the compressive fluid, and wherein the reaction unit contains circulation unit containing first pipe and second pipe, where a fluid is passed through the first pipe from the contacting unit side to the outlet side, and the second pipe is to return the fluid from return port provided upstream extrusion unit to inlet provided upstream the return port.
摘要:
Provided is a polymer product having a branched chain made of polyester, and a weight average molecular weight of 200,000 or greater when measured by gel permeation chromatography.
摘要:
A method for producing a polymer, which contains bringing a polymerizable monomer and a compressive fluid into contact with each other to melt or dissolve the polymerizable monomer, followed by polymerizing the polymerizable monomer in the presence of an electrophile serving as an initiator.
摘要:
Provided is a porous material made of at least an aliphatic polyester resin or an aliphatic polycarbonate resin, and having a porosity of 70% or higher, wherein a polystyrene equivalent weight average molecular weight of the resin measured by gel permeation chromatography is 300,000 or greater.
摘要:
A method for producing a polymer, which contains: bringing a monomer containing a vinyl bond into contact with a compressive fluid and melting or dissolving the monomer containing a vinyl bond, followed by carrying out addition polymerization of the monomer containing a vinyl bond in the presence of an initiator.