Antibacterial coatings and methods of making the antibacterial coatings are described herein. A first branched polyethylenimine (BPEI) layer is formed and a first glyoxal layer is formed on a surface of the BPEI layer. The first BPEI layer and the first glyoxal layer are cured to form a crosslinked BPEI coating. The first BPEI layer can be modified with superhydrophobic moieties, superhydrophilic moieties, or negatively charged moieties to increase the antifouling characteristics of the coating. The first BPEI layer can be modified with contact-killing bactericidal moieties to increase the bactericidal characteristics of the coating.

A gas-barrier composition including nanocellulose containing at least one of a sulfuric acid group, a sulfo group, or a phosphoric acid group; and a reactive crosslinking agent.

Cellulose particles contain cellulose as a main component. The cellulose particles have a kinetic friction coefficient of 0.42 or less, a bulk density of 0.40 g/cm.sup.3 or less, and a solidity of 50% or more.

Provided is a block copolymer comprising a polymer block (A) which comprises repeating units of formula (I) and a polymer block (B) which comprises repeating units of formula (II),

##STR00001##

wherein R.sup.1 is methyl or ethyl, and R.sup.2 represents a group CH.sub.2CH.sub.2-phenyl. The copolymer of the present invention allows a rapid thermoresponsive inverse gelation to be achieved, yielding a hydrogel with viscoelastic solid-like properties, as well as shear thinning, rapid structure recovery and good strain resistance properties. The hydrogel can be favorably used in 3D printing applications.

A compound containing at least one species of formula (I):

##STR00001## where: A.sup.x is an anion of valency x equal to 1 or 2 chosen from sulfonate, sulfonylimide of SO.sub.2N.sup.SO.sub.2C.sub.yF.sub.2y+1 type with y being an integer between 0 and 4; borate, borane, phosphate, phosphinate, phosphonate, silicate, carbonate, sulfide, selenate, nitrate and perchlorate anions; C.sup.x+ is a counter-cation of the anion A.sup.x, chosen from a proton H.sup.+ and alkali metal and alkaline-earth metal cations; p is an integer ranging from 1 to 10; E is an organic spacer comprising a linear sequence of at least two covalent bonds; n is an integer greater than or equal to 2; and G represents: (a) a group

##STR00002## or (b) a group

##STR00003## the anion A.sup.x being covalently bonded to the polycyclic group Ar.

A textile product and a method of manufacturing a composite object therefrom includes interacting a granular material with a textile material, with the textile material impregnated with the elements of the granular material forming a textile product, and introducing the textile product into a molding process so as to form the composite object therefrom. The granular material includes elements including a matrix material having a plurality of reinforcing fibers received therein, the elements of the granular material having a melt viscosity of between about 5 and about 15 grams per 10 minutes and a particle size distribution with a range in particle size of between about 50 and about 595 micrometers.

A thermosetting resin composition includes a thermosetting resin containing a benzoxazine compound, and a curing accelerator containing a triazine thiol compound. The thermosetting resin contains 0.4 or less equivalents of an epoxy resin relative to one equivalent of the benzoxazine compound.

The present invention provides a water-soluble film having high solubility in cold water and high extensibility. The present invention also provides a method for simply producing such a water-soluble film. One aspect of the present invention relates to a water-soluble film including a polyamine backbone-containing compound and a water-soluble resin. Another aspect of the present invention relates to a method for producing a water-soluble film containing a polyamine backbone-containing compound and a water-soluble resin including mixing the polyamine backbone-containing compound and the water-soluble resin.

Thin film composite membranes and methods of fabricating thin film composite membranes are disclosed. A thin film composite membrane can include nitrogen-doped graphene oxide quantum dots. The graphene oxide quantum dots can be doped with nitrogen to increase the performance of the thin film composite membrane. Other particulate compounds can be further integrated with the thin film composite membrane including zeolites, titanium oxides, and sulfur oxides. The thin film composite membranes can be used for various applications including desalination.

The invention relates to a process for drying a moist polymeric material to obtain a dried polymeric material, comprising the steps of: mixing the moist polymeric material with an aqueous solution of a carbohydrate to afford a mixture of the moist polymeric material with the carbohydrate; and heating and/or filtering the mixture of the moist polymeric material with the carbohydrate to remove an amount of volatiles to obtain a predried polymeric material having a volatiles content VC.sub.pre-dried (pre-drying step); fluidizing the pre-dried material in a fluidized bed in order to further remove an amount of volatiles to obtain the dried polymeric material having a volatiles content VC.sub.dried (fluidized bed drying step); and withdrawing and collecting the dried polymeric material from the fluidized bed; wherein VC.sub.pre-dried is higher than VC.sub.dried and the moist polymeric material comprises at least a polymeric material, said polymeric material comprises fluorine permanently bonded to said polymeric material. The invention further relates to a dried polymeric material obtainable by the process of the invention. Furthermore, the invention relates to various uses of the process of the invention as well as to various uses of the dried polymeric materials.