The present disclosure is directed to multiphase dispersions and nanocomposites comprised of a continuous matrix or binder and an endohedrally impregnated cellular carbon filler. These nanocomposites may exhibit superior mechanical, electrical, thermal, or other properties, and may be used in a variety of products, including hierarchical fiber-reinforced composites with nanocomposite matrices.

A polymer represented by the formula (1) is provided.

##STR00001##

in which R.sub.A1 and R.sub.A2 have the meanings as defined in the claims and the description. X represents a phenylene group, an ethylene group, or a phenylenevinylene group, R.sub.D1 and R.sub.D2 have the meanings as defined in the claims and the description. Y represents a linking group. Po represents a polymer structure.

Provided are a novel dispersant for suspension polymerization, and the like. The dispersion stabilizer for suspension polymerization includes a polyvinyl alcohol-based polymer (A) having an acetal skeleton having an ionic group.

The present invention relates to a method for preparing a copolymer comprising structural units of acrylic acid and a cyclic ketene acetal monomer. The copolymer is useful as a biodegradable dispersant.

The present disclosure provides a process for producing propylene-based polymer. The process includes contacting, under polymerization conditions in a gas phase polymerization reactor, propylene monomer and optionally one or more comonomers with a Ziegler-Natta catalyst composition. The process includes maintaining the temperature of a reaction zone of the reactor at a temperature from greater than 72 C. to less than or equal to 85 C., and forming a propylene-based polymer having a molecular weight (M.sub.w) greater than 100,000, and a M.sub.z+1/M.sub.z less than 2.20. The resultant propylene-based polymer is advantageous in fiber applications.

The present disclosure relates to an oxidation-reduction polymer which can be used in an electrochemical sensor, and particularly, in a polymer backbone of an electron transfer medium of the electrochemical sensor. More specifically, the present disclosure relates to: an oxidation-reduction polymer which can be used in a poly (allyl glycidyl ether)-based electrochemical sensor including a repeating unit derived from allyl glycidyl ether; and an electron transfer medium and an electrochemical sensor including same, wherein the oxidation-reduction polymer is advantageous in confirming the completion of reaction during manufacture, has high immobilization efficiency of the transition metal complex, has low possibility of having problems of toxicity and side effects, and can add various functions.

Polar modifier systems based on a blend of DTHFP, ETE, TMEDA, DMTHFMA and/or functionally similar compounds with BDMAEE and SMT are used to make block copolymers having high levels of pendant vinyl double bond repeat units, which is through highly selective 1,2-bond butadiene addition, low vinylcyclopentane formation, unimodal narrow molecular weight distribution, and a low level of randomized co-monomer repeat units. The block copolymers have very high levels of 1,2-vinyl content and high 3,4-vinyl bond addition of the conjugated diene monomer and low vinylcyclopentane content. The polar modifier systems provide a fast polymerization rate, with a unimodal narrow molecular weight distribution. The polar modifier systems allow operation at a higher temperature than in prior art systems, which reduces cooling requirements.

Compositions are provided for efficient uranium extraction, for example from wastewater, seawater, or other water sources. The compositions can include a functionalized porous organic polymer functionalized with one or more uranium binding moieties, e.g. having a plurality of amidoxime or amidrazone groups covalently attached thereto. The compositions can include covalent organic frameworks, porous aromatic frameworks, and various porous organic polymers, especially those having a hierarchical pore size distribution over a range of pore sizes. The compositions can have functional groups such as amidoxime or an amidrazone covalently attached thereto. The hierarchical pore size distribution can be determined based upon at least 60% of the pore sizes in the range of pore sizes having a pore volume of at least 0.01 cm.sup.3 g.sup.1 in the pore size distribution at 77 K. Methods of making the compositions and methods of using the compositions are also provided.

Provided are a polymer including a first repeating unit represented by Formula 1, a resist composition including the polymer, and a method of forming a pattern using the resist composition:

##STR00001## wherein descriptions of L.sub.11 to L.sub.14, a11 to a13, A.sub.11, X.sub.11, R.sub.11, R.sub.12, b12 and p in Formula 1 are provided in the present specification.

A method is provided for capturing CO.sub.2 from a gas mixture comprising CO.sub.2. The method includes contacting the gas mixture with a sorbent comprising a porous polymer. The porous polymer selectively binds CO.sub.2 in the gas mixture to yield bound CO.sub.2, thereby removing CO.sub.2 from the gas. Upon exposure to moisture, the porous polymer releases the bound CO.sub.2 to yield a recycled porous polymer.