摘要:
[Problem] To provide a physiologically active peptide-loaded stable composition for injection into living bodies. [Solution] A composition containing a triblock copolymer represented by formula (I), a polyanionic polymer and a physiologically active peptide:
CNR-PEG-CNR (I)
in the formula, CNR moieties are each independently a polymer segment containing a repeating unit that contains, as a part of a pendant group, a cyclic nitroxide radical bonded to a main polymer chain via a linking group that contains at least one amino group, and PEG is a segment that contains poly(ethylene glycol).
摘要:
Disclosed herein are a composite semipermerable membrane and a method for producing the same. The composite semipermeable membrane comprises a microporous support membrane and a separation functional layer provided on the microporous support membrane, wherein the separation functional layer contains a condensation product produced by condensation of at least one selected from the group consisting of ions of trialkoxysilanes each having an imidazolium group and a conjugated base of a polymer having at least one acidic group. The composite semipermeable membrane achieves excellent selective separation of divalent ions over monovalent ions, and is suitable for use in various water treatment fields such as seawater desalination and drinking water production.
摘要:
Shape memory polymers prepared by copolymerizing two monomers, which each separately produce polymers characterized by different glass transition temperatures in the presence of a difunctional monomer whereby the copolymer formed is cross-linked during the polymerization to form a theremoset network. The transition temperature of the final polymers is adjusted by the ratio of the monomers selected, to from about 20 to about 110° C, while the degree of cross-linking controls the rubbery modulus plateau. The shape memory polymers can be processed as castable formulations in the form of coatings and films. The copolymers are optically transparent and are useful as medical plastics. The invention also relates to the articles of manufacture thereof and methods of the preparation and use thereof.
摘要:
This invention provides adducts, mixtures of adducts and oligomers, and/or mixtures of adducts, oligomers, and low molecular weight polymers formed from monovinylaromatic hydrocarbons.