A self-assembled film-forming composition for orthogonally inducing, with respect to a substrate, a microphase separation structure in a layer including a block copolymer, in the whole surface of a coating film, even at high heating temperatures at which arrangement failure of the microphase separation of the block copolymer occurs. The self-assembled film-forming composition includes a block copolymer, and at least two solvents having different boiling points as a solvent. The block copolymer is obtained by bonding: a non-silicon-containing polymer having, as a structural unit, styrene, a derivative thereof, or a structure derived from a lactide; and a silicon-containing polymer having, as a structural unit, styrene substituted with silicon-containing groups. The solvent includes: a low boiling point solvent (A) having a boiling point of 160 C. or lower; and a high boiling point solvent (B) having a boiling point of 170 C. or higher.

Described herein is a millable fluorinated block copolymer having at least one A block and at least one B block, wherein the A block is a semi-crystalline segment comprising repeating divalent monomeric units derived from TFE, HFP and VDF; and the B block is a segment comprising repeating dilvalent monomeric units derived from HFP and VDF; and wherein the millable fluorinated block copolymer has a modulus of 0.1 to 2.5 MPa at 100 C.

A method of production of a conjugated diene rubber including a first step of polymerizing a monomer containing a conjugated diene compound in an inert solvent using a polymerization initiator so as to obtain a conjugated diene polymer chain having an active end, a second step of reacting polyorganosiloxane represented by the following general formula (1) with the conjugated diene polymer chain having an active end by adding the polyorganosiloxane in an amount of 1 mole or more, when converted to the number of repeating units of the siloxane structure (SiO) in the polyorganosiloxane, with respect to 1 mole of the polymerization initiator used in the first step, and a third step of reacting a compound represented by the following general formula (2) with the conjugated diene polymer chain with which polyorganosiloxane was reacted obtained in the second step.

##STR00001##

The problem addressed by the present invention is to provide a block copolymer that can be used in a neutral solvent atmosphere and can produce a solid polymer membrane including nanoparticles.

The problem is solved by a block copolymer represented by formula (1) below.

##STR00001## wherein in the formula, R.sub.1 represents a C1-20 linear, branched, or cyclic alkyl group, C6-20 aryl group, or C7-20 aralkyl group; R.sub.2 represents a group having a functional group having an acid dissociation constant pKa of from 0.5 to 7; R.sub.3, R.sub.4, and R.sub.5 each show H or a C1-20 linear, branched, or cyclic alkyl group; R.sub.6, R.sub.7, and R.sub.8 each represent a hydrogen, hydroxyl group, nitro group, carboxy group, or carbonyl group; X represents an amide or ester, but may not be included; Y represents an amide or ester, but may not be included; p represents an integer of 1-10, but may not be included; n represents an integer of 3-1000; m represents an integer of 3-1000; and t represents an integer of 3-1000, but n may not be included; the arrangement of n, m, and t is arbitrary, but n and m are adjacent when n is included.

A reversible crosslinking reactant composition is provided. The composition includes at least one furan-group-containing oligomer having a structure represented by Formula (I) and a bismaleimide compound having a structure represented by

##STR00001##

Formula (II), wherein the equivalent ratio of the furan group of the furan-group-containing oligomer having a structure represented by Formula (I) to the maleimide group of the bismaleimide compound having a structure represented by Formula (II) is from 0.5:1 to 1:0.5.

The invention provides a furan-modified compound or oligomer. The compound has a structure represented by Formula I:

##STR00001##

When formula I represents a compound, x is an integer of 15; A including a group formed of ketone, amido, imide, imido, phenyl ether or enol ether group; G is a direct bond, O, N, ArNH(CH.sub.2).sub.b, ArO(CH.sub.2).sub.b, ArO(CH.sub.2).sub.aNH(CH.sub.2).sub.b, (CH.sub.2).sub.aNH(CH.sub.2).sub.b, (CH.sub.2).sub.aO(CH.sub.2).sub.b or (CH.sub.2).sub.aCH(OH)(CH.sub.2).sub.bNH; Ar is substituted or unsubstituted arylene group; a is an integer of 1 to 5; and b is an integer of 0 to 5.

Polymers having mechanical properties approaching or exceeding commercial elastomers and engineering thermoplastics, but improved biostability, are described herein. In one embodiment, the polymers have a hard segment containing one or more disulfoxide or disulfone moieties and a soft segment connected to the hard segment to form an elastomeric polymer. The polymer is resistant to oxidation and/or hydrolytic degradation, particularly in vivo, which allows for the use of these materials in implants/devices which are implanted for an extended period of time. The ratio or percentage by weight of soft segment to hard segment can be varied based on the physical and mechanical properties of the desired device.

The present invention provides a resin composition comprising maleimide-containing pre-polymerized resin and article made therefrom. The resin composition comprises: 100 weight parts of vinyl-containing polyphenylene ether resin; 35 to 45 weight parts of bis(vinylphenyl)ethane; and 30 to 60 weight parts of maleimide-containing pre-polymerized resin; wherein the maleimide-containing pre-polymerized resin is obtained by pre-polymerization of aromatic maleimide resin and long chain maleimide resin. The articles made from the resin composition improve at least one characteristic of glass transition temperature variation, copper foil peeling strength, percentage of thermal expansion, coefficient of thermal expansion and surface appearance.

Described herein is a millable fluorinated block copolymer having at least one A block and at least one B block, wherein the A block is a semi-crystalline segment comprising repeating divalent monomeric units derived from TFE, HFP and VDF; and the B block is a segment comprising repeating dilvalent monomeric units derived from HFP and VDF; and wherein the millable fluorinated block copolymer has a modulus of 0.1 to 2.5 MPa at 100 C.

Provided herein is a masterbatch including a grafted silicone polyether and a porous inorganic nanoparticle, bacteria repellant polymer composites including the same, and methods of preparation thereof.