A block copolymer contains at least a block (P1) and a block (P2). The block (P1) is obtained or obtainable by reaction of a triblock copolymer having the structure A-B-A, where block B is selected from polyethers or polyesters and blocks A and A are identical or different, and at least one polymer (PM) selected from polyesters and polyethers. The block (P2) is selected from polyamides and polyesters. A process can be used for producing the inventive block copolymer, a shaped article can be made containing the inventive block copolymer, and the inventive block copolymer can be used for producing a shaped article.

The present disclosure relates to a responsive polymer film, a method of preparing the responsive polymer film, and a sensor using the polymer film.

Provided is an ester-amide multi-block copolymer represented by formula (1), which comprises a block containing a polyester and a block containing a polyamide obtained through ring opening polymerization of a cyclic lactam. (R1 and R2 each denote a hydrogen atom or a substituent group-containing alkyl chain having 1-20 carbon atoms, and R3 denotes a hydrogen atom or a substituent group-containing alkyl chain having 1-10 carbon atoms. In addition, R4 is an aromatic hydrocarbon chain that does, or does not, contain a heteroatom or an aliphatic hydrocarbon chain that does, or does not, contain a hetero atom. Y is NH, O or S. Furthermore, m denotes an integer between 1 and 60, n denotes an integer between 1 and 120, 1 denotes an integer between 2 and 100, and x denotes an integer between 1 and 11).

An improved method for processing liquefied waste plastics includes providing a liquefied waste plastic (LWP) feedstock for heat treatment (HT processing) with an aqueous solution containing a basic substance, subjecting the LWP feedstock to the heat treatment with the aqueous solution, followed by phase separation to result in at least a treated LWP material and an aqueous phase, determining the quality of the LWP feedstock by measuring at least one property of the LWP feedstock, the at least one property including at least the total acid number (TAN) of the LWP feedstock, and calculating an amount of the basic substance to be added in HT processing to reach a target pH level of the aqueous phase based on the at least one property of the LWP feedstock and the water-oil-ratio, and adding the calculated amount of basic.

In certain embodiments, the present invention relates to a sustained release, biodegradable drug-delivery system, comprising an organogel and an active agent, the organogel comprising a hydrophobic organic liquid, and a biodegradable, covalently crosslinked polymeric network, wherein the hydrophobic organic liquid and the active agent are contained in the biodegradable, covalently crosslinked polymeric network. In other embodiments the present invention relates to a pharmaceutically acceptable biodegradable drug-delivery system such as an implant for controlled release of a therapeutically or diagnostically active agent and methods of manufacturing it. The present invention also relates to corresponding methods of treatment and uses, as well as a kit.

A method for manufacturing an energy responsive composition includes a step of preparing a polymer-containing solution that includes a solvent having a relative dielectric constant of a prescribed value or less and an associative polymer that has a main chain having a plurality of carbon atoms and a polar group having a higher polarity than the main chain and self-associates in the solvent, a step of preparing a mixture solution by bringing an energy-responsive nanoparticle into contact with the polymer-containing solution, and a step of extracting an energy responsive composition containing a plurality of energy responsive protective particles each including the nanoparticle and the associative polymer from the mixture solution by reducing the content of the solvent.

A mixture contains at least one amino-regulated polyether block amide (PEBA) and at least one poly(meth)acrylate selected from poly(meth)acrylimides, polyalkyl(meth)acrylates, and mixtures thereof. The mass ratio of PEBA to poly(meth)acrylate is 95:5 to 60:40. The polyalkyl(meth)acrylate contains 80% by weight to 99% by weight of methyl methacrylate (MMA) units and 1% by weight to 20% by weight of C1-C10-alkyl acrylate units, based on the total weight of polyalkyl(meth)acrylate. The mixture can be processed to give foamed mouldings. The mouldings can be used in footwear soles, stud material, insulation or insulating material, damping components, lightweight components, or in a sandwich structure.