1) Hydrocarbon polymer of formula (I):

##STR00001##

F.sup.1 and F.sup.2 are exo-vinylene cyclocarbonate monovalent radicals of formulas (IIa) and (IIb):

##STR00002## g and d 0, 1, 2 or 3; A C1-C6 alkyl; X an oxygen atom or NR.sup.17 with R.sup.17 C1-C6 alkyl; R.sup.14, R.sup.15 and R.sup.16 a hydrogen atom or C1-C6 alkyl; R.sup.1 to R.sup.12 H or C1-C14 alkyl; R.sup.13 O or CH.sub.2; x 1 and y 1; n1 and n2 an integer or zero; m an integer or zero; p1 and p2 an integer or zero of non-zero sum; n1, n2, m, p1 and p2 such that the molecular weight of said polymer is 400 to 100,000 g/mol; process of preparation by ring-opening metathesis polymerization; and use as an adhesive in a mixture with an amine compound having at least 2 amine groups.

A graft copolymer can include, in its backbone, at least one segment having repeating units obtainable by ring-opening metathesis polymerization (ROMP) of an optionally substituted cycloalkene, and at least one segment comprising repeating units obtainable by atom transfer radical polymerization (ATRP) of a (meth)acrylate. The corresponding graft copolymer is highly suitable for use as an oil additive in internal combustion engines, in particular, in combustion engines which are operated for longer periods of time at substantially constant operating temperatures.

Hydrocarbon polymer having two 2-oxo-1,3-dioxolane-4-carboxylate end groups of formula (I):

##STR00001## F.sup.1 has formula (IIa) and F.sup.2 has formula (IIb):

##STR00002## in which g and d, which are identical or different, represent an integer equal to 1, 2 or 3; R.sup.1 to R.sup.12 represent a hydrogen atom or an alkyl radical of 1 to 22 carbon atoms; x and y are integers such that the sum x+y is 0 to 2; R.sup.13 is an oxygen or sulphur atom or a divalent CH.sub.2 radical; n1, n2, m, p1 and p2 are an integer or equal to 0 and such that the molecular weight Mn of the polymer of formula (I) is between 400 and 100 000 g/mol, a process for the preparation of the polymer by ring-opening metathesis polymerization, and use as adhesive in mixture with an amino compound having at least two amine groups.

A graft copolymer can include, in its backbone, at least one segment having repeating units obtainable by ring-opening metathesis polymerization (ROMP) of an optionally substituted cycloalkene, and at least one segment comprising repeating units obtainable by atom transfer radical polymerization (ATRP) of a (meth)acrylate. The corresponding graft copolymer is highly suitable for use as an oil additive in internal combustion engines, in particular, in combustion engines which are operated for longer periods of time at substantially constant operating temperatures.

Methods for fabricating three-dimensional objects by 3D-inkjet printing technology are provided. The methods utilize curable materials that polymerize via ring-opening metathesis polymerization (ROMP) for fabricating the object. Systems suitable for performing these methods and kits containing modeling material formulations usable in the methods are also provided.

Dicyclopentadiene (DCPD) derivatives of following general formula (I); their preparation and use thereof, especially as monomers in polymerization reactions, such as olefin polymerization or ring-opening metathesis polymerization (ROMP).

##STR00001##

The organic semiconductor polymers relates to the synthesis of a carbazole-based ladder polymer. The synthesis of the ladder polymer includes forming a precursor conjugated polymer by Suzuki step growth polymerization of 2,7-dibromocarbazole with 1,4-dibromo-2,5-divinylbenzene, followed by end capping with 2-bromostyrene and 2-vinyl-phenylboronic acid. Then, the pendent vinyl groups are closed by ring-closing olefin metathesis to obtain the ladder polymer.

Certain embodiments are directed to resins comprising norbornene derivatives for use in structures such as radomes. In some examples, the radome comprises a dielectric constant of less than 2.7, a loss tangent of less than 0.003 and a moisture absorption of less than 1.5%.

The devices can be fabricated by a method that permits active polymer chains to be polymerized on the surface of an electrode such that the active polymer chains are aligned with one another. The active polymer chains can also be covalently linked to a second electrode so the active polymer chains are located in an active layer of the device. The polymerization method can be paused and resumed at any point in the polymerization so nanoparticles can be added into the active layer. Additionally, the polymerization method allows that active polymer chains to be polymerized so they include junctions such as p-n junctions and Schottky junctions.

The present disclosure describes functional oligomers or functional polymers. The functional oligomers or functional polymers may contain functional groups, e.g., OH and/or CHO. The functional oligomers or functional polymers may be obtained from hydrolyzing certain copolymers and may be soluble in commercially available solvents. The copolymers may be thermosetting polymers. The functional oligomers and functional polymers may be useful for recycling thermosetting polymers and may be useful as starting materials for preparing additional oligomers or polymers.