Aspects of the present disclosure relate to Schiff base oligomers and uses thereof. In at least one aspect, an oligomer is represented by Formula (IV) wherein each instance of R.sup.9 is independently selected from the group consisting of alkyl, cycloalkyl, aryl, heteroaryl, and ether. Each instance of R.sup.28 and R.sup.29 of Formula (IV) is independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, and aryl. Each instance of R.sup.33 of Formula (IV) is independently selected from the group consisting of alkyl, cycloalkyl, aryl, heterocyclyl, and a bond. Each instance of R.sup.41 of Formula (IV) is independently —NH— or a bond and each instance of R.sup.40 is independently —NH— or —NH—NH—. Each instance of R.sup.42 of Formula (IV) is independently —NH— or a bond and each instance of R.sup.43 is independently —NH— or —NH—NH—.

Aspects of the present disclosure relate to Schiff base oligomers and uses thereof. In at least one aspect, an oligomer is represented by Formula (I) wherein each instance of R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.10, R.sup.11, R.sup.12, R.sup.13, and R.sup.14 is independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, alkoxyl, aryloxyl, ether, and heterocyclyl. Each instance of R.sup.9 of Formula (I) is independently selected from the group consisting of alkyl, cycloalkyl, aryl, heterocyclyl, and ether. Each instance of R.sup.28 and R.sup.29 of Formula (I) is independently selected from the group consisting of hydrogen, alkyl, and aryl. Each instance of R.sup.33 of Formula (I) is independently selected from the group consisting of alkyl, cycloalkyl, aryl, heterocyclyl, and a bond. Each instance of R.sup.41 of Formula (I) is independently —NH— or a bond and each instance of R.sup.40 is independently —NH— or —NH—NH—.

A method of forming a binder composition includes providing a urea-formaldehyde resin and combining one or more starch compounds with the urea-formaldehyde resin to form a starch modified urea-formaldehyde resin. The one or more starch compounds may be combined with the urea-formaldehyde resin so that the starch modified urea-formaldehyde resin includes about 1 wt. % to about 10 wt. % of the one or more starch compounds.

A method of forming a binder composition includes providing a urea-formaldehyde resin and combining one or more starch compounds with the urea-formaldehyde resin to form a starch modified urea-formaldehyde resin. The one or more starch compounds may be combined with the urea-formaldehyde resin so that the starch modified urea-formaldehyde resin includes about 1 wt. % to about 10 wt. % of the one or more starch compounds.

An amine-functionalized, crosslinked porous copolymer can be synthesized by linking 1,4-benzenediamine and pyrrole with p-formaldehyde in the presence of concentrated hydrochloric acid catalyst. The polymer is permanently microporous, with a BET surface area of 250 to 350 m.sup.2/g. Due to the high concentration of polar amines within its backbone, the polymer exhibits a CO.sub.2 uptake of 17.5 to 30 cm3/g at 298 K and 1 bar, but demonstrated a remarkably high selectivity for CO.sub.2 over N.sub.2 at 298 K. Dynamic breakthrough experiments indicate that this material is an effective adsorbent for selectively separating CO.sub.2 from a dry and wet gas mixture containing N.sub.2 for over 45 cycles without significant loss of performance. Furthermore, the polymer can be regenerated at room temperature after each cycle by a simple N.sub.2 flow.

A compound represented by the following formula (0).

##STR00001##

(In the above formula (0), R.sup.X represents a 2n.sup.A-valent group having 1 to 70 carbon atoms or a single bond; each R.sup.1A independently represents any of an alkyl group having 1 to 30 carbon atoms and optionally having a substituent, an aryl group having 6 to 30 carbon atoms and optionally having a substituent, a crosslinkable group having 2 to 30 carbon atoms and optionally having a substituent, an alkoxy group having 1 to 30 carbon atoms and optionally having a substituent, a maleamic acid group having 4 to 30 carbon atoms and optionally having a substituent, a maleimide group having 4 to 30 carbon atoms and optionally having a substituent, a halogen atom, a nitro group, an amino group having 0 to 30 carbon atoms and optionally having a substituent, a carboxyl group, a thiol group and a hydroxy group, wherein, when R.sup.1A is any of the alkyl group, the aryl group, the crosslinkable group and the alkoxy group, at least one bond selected from the group consisting of an ether bond, a ketone bond and an ester bond is optionally contained, and at least one R.sup.1A is any of a maleamic acid group having 4 to 30 carbon atoms and optionally having a substituent and a maleimide group having 4 to 30 carbon atoms and optionally having a substituent; X represents an oxygen atom or a sulfur atom, or is optionally not present; each R independently represents any of a benzene ring, a naphthalene ring and an anthracene ring; each m is independently an integer of 0 to 9, wherein at least one m is an integer of 1 to 9; and n.sup.A is an integer of 1 to 4.)

A method for manufacturing a modified porous composite structure includes steps as follows. A functionalized melamine sponge is provided, a porous organic framework source is provided, a connecting step is conducted, and a modifying step is conducted. The porous organic framework source includes a porous organic framework or a precursor of the porous organic framework. The porous organic framework and the precursor of the porous organic framework include a plurality of first ligands. Each first ligand includes at least one tetrazine group. In the connecting step, the functionalized melamine sponge is combined with the porous organic framework, so that a porous composite structure is obtained. In the modifying step, a reactive group of a modifying group donor is reacted with the tetrazine group, so that a modifying group of the modifying group donor is connected to the porous composite structure to obtain the modified porous composite structure.

The present invention relates generally to substrates for making polymers and methods for making polymers. The present invention also relates generally to polymers and devices comprising the same.

The present invention relates generally to substrates for making polymers and methods for making polymers. The present invention also relates generally to polymers and devices comprising the same.

Aspects of the present disclosure relate to Schiff base oligomers and uses thereof In at least one aspect, an oligomer is represented by Formula (IV) wherein each instance of R.sup.9 is independently selected from the group consisting of alkyl, cycloalkyl, aryl, heteroaryl, and ether. Each instance of R.sup.28 and R.sup.29 of Formula (IV) is independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, and aryl. Each instance of R.sup.33 of Formula (IV) is independently selected from the group consisting of alkyl, cycloalkyl, aryl, heterocyclyl, and a bond. Each instance of R.sup.41 of Formula (IV) is independently NH or a bond and each instance of R.sup.40 is independently NH or NHNH. Each instance of R.sup.42 of Formula (IV) is independently NH or a bond and each instance of R.sup.43 is independently NH or NHNH.