Disclosed herein are embodiments of aryl compounds and polymers thereof that are made using methods that do not require harsh conditions or expensive reagents. The methods disclosed herein utilize precursor compounds that can be polymerized to form polycyclic aromatic hydrocarbons and polymers, such as carbon-based polymers like nanostructures (e.g., graphene or graphene-like nanoribbons).

1) Hydrocarbon-based copolymer comprising two end groups preceded by an ether function and chosen from a 2-oxo-1,3-dioxolan-4-yl (or cyclocarbonate), a dithiocyclocarbonate, and a 2-oxo-1,3-dioxolen-4-yl, the main chain of which comprises units (I) and (II) ##STR00001## in which R.sup.0 is notably a methyl radical; and the number-average molecular mass Mn of which is between 400 and 100 000 g/mol. 2) Process for preparing said copolymer, comprising: (i) a step of heating a statistical bipolymer A chosen from a poly(butadiene-isoprene), a poly(butadiene-myrcene) and a poly(butadiene-farnesene); and then (ii) a step of heating the product formed, in the presence of a chain-transfer agent. 3) Use as adhesive, as a mixture with an amine compound comprising at least two amine groups.

A cyclopentene ring-opening copolymer having a branch structure contains a structure in which at least four cyclopentene ring-opening polymer chains are linked via a branch-structural unit. At least part of the cyclopentene ring-opening polymer chains is terminally modified.

The present specification provides a copolymer including a unit of Chemical Formula 1 and a unit of Chemical Formula 2; and an organic light emitting device including the same.

A method of light-promoted frontal ring-opening metathesis polymerization includes providing a monomer solution including dicyclopentadiene, a ruthenium-based catalyst and a phosphite inhibitor, and exposing the monomer solution to ultraviolet light having a wavelength in a range from 315 nm to 400 nm, thereby initiating an exothermic polymerization reaction and generating a self-propagating polymerization front. The polymerization front moves through the monomer solution and polymerizes the dicyclopentadiene.

The present specification relates to a polymer including a first unit of Chemical Formula 1; a second unit of Chemical Formula 2; and a third unit of Chemical Formula 3 or 4, and an organic solar cell including the same.

An allyl-containing resin is provided. The allyl-containing resin comprises a repeating unit comprising a structural unit represented by the following formula (I):

##STR00001## wherein, R.sub.1 to R.sub.3 in formula (I) are as defined in the specification; the Fourier transform infrared spectrum of the allyl-containing resin has a signal intensity “a” from 1650 cm.sup.−1 to 1630 cm.sup.−1 and a signal intensity “b” from 1620 cm.sup.−1 to 1560 cm.sup.−1, and 0<a/b≤1.20; and the quantitative .sup.1H-NMR spectrum of the allyl-containing resin has a signal intensity “c” from 3.2 ppm to 6.2 ppm and a signal intensity “d” from 6.6 ppm to 7.4 ppm, and 0<c/d≤1.20.

A light emitting device contains an anode, a cathode, and two organic layer respectively containing metal complexes represented by formulas (1) and (2).

##STR00001##

M.sup.1 and M.sup.2 represent an iridium atom; n.sup.1 and n.sup.3 represent an integer of 1 or more; n.sup.2 and n.sup.4 represent an integer of 0 or more; Ring R.sup.1A represents a triazole ring; Ring R.sup.2 represents an aromatic hydrocarbon ring; E.sup.1, E.sup.2 and E.sup.11A to E.sup.13A represent a nitrogen or a carbon atom; R.sup.11A to R.sup.13A represent a substituent. At least one of E.sup.11A to E.sup.13A is a nitrogen atom, and at least one of R.sup.11A to R.sup.13A bonding to the nitrogen atom is a group represented by (Ar-1A). E.sup.L represents a carbon atom; Ring L.sup.1 represents a 6-membered aromatic hetero ring; Ring L.sup.2 represents an aromatic hydrocarbon ring; and A.sup.1-G.sup.1-A.sup.2 and A.sup.3-G.sup.2-A.sup.4 represent bidentate ligands.

##STR00002##

Ring A represents an aromatic hydrocarbon ring with substituent R.sup.2.

The present invention provides a. coating-type composition for forming an. organic film containing: a polymer having a structure shown by the following general formula (1) as a partial structure; and an organic solvent, where in the formula (1), ring structures Ar1 and Ar2 represent a benzene rive or a naphthalene ring optionally having a substituent, and W.sub.1 represents an aryl croup having 6 to 30 carbon atoms and optionally having a substituent. This provides a coating-type composition for forming an organic film that can. form an organic film having high pattern-curving resistance and high dry-etching resistance, the composition being excellent in solvent solubility and having a low generation of defects.

##STR00001##

Various photocrosslinkable electrochromic polymers are disclosed. The polymers are suitable for an electrochromic layer of an electrochromic device. The polymers are formed with a two-step synthesis method that includes forming a polymer precursor with one or more chromophore blocks, and mixing the polymer precursor with photocrosslinkable monomer units to form the polymer.