The present invention relates to a modified polyimide including a terminal group represented by Formula 1:

##STR00001## wherein D is a heat curable or photocurable functional group, R is a divalent or higher polyvalent organic group, and n is an integer of 1 or greater. The modified polyimide undergoes less reduction in transmittance and is protected from discoloration when cured. Due to these advantages, the modified polyimide can provide a highly transparent colorless polyimide film. Particularly, the modified polyimide is suitable for use in display substrates, interlayer insulating films of semiconductor devices, passivation films, buffer coat films, insulating films for multilayer printed circuit boards, insulating films of OLEDs, and protective films of thin film transistors of liquid crystal display devices. The present invention also relates to a curable composition including the modified polyimide.

A process for the enzyme-catalyzed preparation of prepolymers for the production of plastics, based on an enzyme-catalyzed polymerization of monomer or oligomer compounds in a single phase aqueous solution, as well as the separation of the prepolymers precipitated therefrom and their subsequent use for the production of plastics and plastic articles obtainable therefrom. In particular, the invention relates to respective methods for enzyme-catalyzed preparation of prepolymers with polyamide-type bonding structure for the production of polyamide-based plastics.

In an aspect, a method of synthesizing a graft copolymer comprises the steps of: copolymerizing a first macromonomer and a first reactive diluent; wherein said first macromonomer comprises a first backbone precursor directly or indirectly covalently linked to a first polymer side chain group; wherein said reactive diluent is provided in the presence of the first macromonomer at an amount selected so as to result in formation said graft copolymer having a first backbone incorporating said diluent and said first macromonomer in a first polymer block characterized by a preselected first graft density or a preselected first graft distribution of said first macromonomer. In some embodiments of this aspect, said preselected first graft density is any value selected from the range of 0.05 to 0.75. In some methods, the composition and amount of said diluent is selected to provide both a first preselected first graft density and a first preselected first graft distribution.

A peptide-crosslinked protein-imprinted polymer, preparation method, and application thereof. One method comprises: 1) dissolving a main monomer, functional monomers, a peptide crosslinking agent, and a template protein in an aqueous solution to obtain a mixed solution; 2) adding an initiator or initiator system to the mixed solution to initiate the polymerization when the peptide crosslinking agent exists in a helix conformation to obtain a polymer; 3) eluting the template protein when the peptide chain exists in a coil conformation to obtain a peptide-crosslinked protein-imprinted polymer. The peptide crosslinking agent is a peptide with a polymerizable double bond at its both ends, and being capable of undergoing helix-coil transition. The polypeptide crosslinking agent is a polypeptide having an amino acid sequence which has a polymerizable double bond at its both ends, being capable of undergoing a helix-coil conformational transformation. The polypeptide cross-linked protein molecule-imprinted polymer disclosed in the invention not only can completely remove the template protein under mild conditions, but also can significantly improve the imprint effect of the protein molecule-imprinted polymer.

A peptide-crosslinked protein-imprinted polymer, preparation method, and application thereof. One method comprises: 1) dissolving a main monomer, functional monomers, a peptide crosslinking agent, and a template protein in an aqueous solution to obtain a mixed solution; 2) adding an initiator or initiator system to the mixed solution to initiate the polymerization when the peptide crosslinking agent exists in a helix conformation to obtain a polymer; 3) eluting the template protein when the peptide chain exists in a coil conformation to obtain a peptide-crosslinked protein-imprinted polymer. The peptide crosslinking agent is a peptide with a polymerizable double bond at its both ends, and being capable of undergoing helix-coil transition. The polypeptide crosslinking agent is a polypeptide having an amino acid sequence which has a polymerizable double bond at its both ends, being capable of undergoing a helix-coil conformational transformation. The polypeptide cross-linked protein molecule-imprinted polymer disclosed in the invention not only can completely remove the template protein under mild conditions, but also can significantly improve the imprint effect of the protein molecule-imprinted polymer.

The present disclosure proposes an improved heat resistant base for electronic equipment having transparency, heat resistance and mechanical strength and also having superior optical properties and quality, and thereby capable of replacing a transparent glass base.

The present disclosure is accomplished by the heat resistant base for electronic equipment including a polyimide-based resin and a hollow particle, wherein a plurality of the hollow particles are dispersed and present in the polyimide-based resin, and the hollow particle has an average particle diameter of greater than or equal to 10 nm and less than or equal to 300 nm.

The present disclosure proposes an improved heat resistant base for electronic equipment having transparency, heat resistance and mechanical strength and also having superior optical properties and quality, and thereby capable of replacing a transparent glass base.

The present disclosure is accomplished by the heat resistant base for electronic equipment including a polyimide-based resin and a hollow particle, wherein a plurality of the hollow particles are dispersed and present in the polyimide-based resin, and the hollow particle has an average particle diameter of greater than or equal to 10 nm and less than or equal to 300 nm.

An anti-corrosive material contains a ultraviolet curable resin including a polymerizable compound including at least one of a photopolymerizable (meth)acrylate monomer or a photopolymerizable (meth)acrylate oligomer. The polymerizable compound includes a combination of certain substances. The photopolymerizable (meth)acrylate oligomer contains a low molecular-weight (meth)acrylate oligomer. The polymerizable compound contains a certain cross linking density increasing agent. 35 to 100 parts by mass of the cross linking density increasing agent are contained for 100 parts by mass of the ultraviolet curable resin. The anti-corrosive material has a viscosity of 18,900 mPa.Math.s or less, the viscosity being measured at 25° C. according to JIS Z8803.

This document discloses a process for manufacturing recyclable injection molded microcellular foams for use in, footwear components, seating components, protective gear components, and watersport accessories. The process includes the steps of providing a thermoplastic polymer which comprises at least one monomer derived from depolymerized post-consumer plastic, inserting a fluid into a barrel of a molding apparatus. The fluid is introduced under temperature and pressure conditions to produce a super critical fluid. The process further includes mixing the thermoplastic polymer and super critical fluid so as to create a single phase solution, and injecting the single phase solution into a mold of an injection molding machine under gas counter pressure. The process further includes foaming the single phase solution by controlling the head and temperature conditions within the mold.

This disclosure relates to a dielectric film forming composition that includes a plurality of (meth)acrylate containing compounds, at least one fully imidized polyimide polymer, and at least one solvent.