1) Hydrocarbon-based copolymer comprising two end groups preceded by an ester function and chosen from a 2-oxo-1,3-dioxolan-4-yl (or cyclocarbonate), a dithiocyclocarbonate, an exo-vinylene cyclocarbonate 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.

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.

The present disclosure provides cyclic silyl ethers of the formula:

##STR00001##

and salts thereof. The cyclic silyl ethers may be useful as monomers for preparing polymers. Also described herein are polymers prepared by polymerizing a cyclic silyl ether and optionally one or more additional monomers. The polymers may be degradable (e.g., biodegradable). One or more O—Si bonds of the polymers may be the degradation sites. Also described herein are compositions and kits including the cyclic silyl ethers or polymers; methods of preparing the polymers; and methods of using the polymers, compositions, and kits.

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.

A polymer comprising at least one unit of the formula (1) wherein T.sup.1 is a carbon atom or a nitrogen atom, T.sup.2 is a carbon atom if T.sup.1 is a nitrogen atom, or is a nitrogen atom if T.sup.1 is a carbon atom, r is 1, 2, 3 or 4, s is 1, 2, 3, or 4, M.sup.1 is preferably selected from the group consisting of M.sup.2 is preferably The polymers are prepared by reacting monomers (1a) with monomers (2a) H.sub.2N-[-M.sup.1-]r-NH.sub.2 (1a) OHC-[-M.sup.2-]s-CHO (2a) or the step of reacting monomers (1b) with monomers (2b) OHC-[-M.sup.1-]r-CHO (1b) H.sub.2N-[-M.sup.2-]s-NH.sub.2 (2b). ##STR00001##

1) Hydrocarbon-based copolymer comprising two end groups preceded by an ester function and chosen from a 2-oxo-1,3-dioxolan-4-yl (or cyclocarbonate), a dithiocyclocarbonate, an exo-vinylene cyclocarbonate 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.

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.

Hydrocarbon copolymer P comprising 2 alkoxysilane end groups F.sup.1 and F.sup.2 of formulae: F.sup.1 : (RO).sub.3-tR.sub.tSiRNHC(O)O(CH.sub.2)g.sub.1 and F2: (CH.sub.2).sub.d1OC(O)NHRSiR.sub.tOR).sub.3-t; or F.sup.1: (RO).sub.3-tR.sub.tSiRNRC(O)NH(CH.sub.2).sub.g1 and F.sup.2: (CH.sub.2).sub.d1NHC(O)NRRSiR.sub.t(OR).sub.3-t; or F1: (RO).sub.3-tR.sub.tSiRNRC(O)(CH.sub.2).sub.g2 and F.sup.2: (CH.sub.2).sub.d2C(O)NRRSiR.sub.t(OR).sub.3-t; wherein t is 0, 1 or 2; g1 and d1 are 1, 2 or 3; g2 and d2 are 0, 1, 2 or 3; R and R represent a C.sub.1-C.sub.4 alkyl; R is a C.sub.1-C.sub.4 alkylene radical; R is method for producing the copolymer, by heating a statistical bipolymer A: poly(butadiene-isoprene), poly(butadiene-myrcene) or poly(butadiene-farnesene); and heating the formed product, in the presence of a chain transfer agent of formula (C) and adhesive composition of the copolymer and a crosslinking catalyst.

1) Hydrocarbon copolymer P comprising 2 alkoxysilane end groups F.sup.1 and F.sup.2 of formulae: F.sup.1: (RO).sub.3-tR.sub.tSi(CH.sub.2).sub.g1- and F.sup.2: (CH.sub.2).sub.d1SiR.sub.t(OR).sub.3-t; or F.sup.1: (RO).sub.3-tR.sub.tSiRO(O)C(CH.sub.2).sub.g2 and F.sup.2: (CH.sub.2).sub.d2C(O)ORSiR.sub.t(OR).sub.3-t; wherein t is 0, 1 or 2; g1 and d1 are 1, 2 or 3; g2 and d2 are 0, 1, 2 or 3; R et R represent a C.sub.1-C.sub.4 alkyl; R is a C.sub.1-C.sub.4 alkylene radical; the main chain comprising motifs (I) and (II) in which R.sup.0 is in particular the methyl radical; and the number average molecular mass Mn thereof being between 400 and 100,000 g/mol. 2) Method for producing said copolymer, comprising: (i) a step of heating a statistical bipolymer A selected from a poly(butadiene-isoprene), a poly(butadiene-myrcene) and a poly(butadiene-farnesene); and subsequently (ii) a step of heating the formed product, in the presence of a chain transfer agent of formula (C). 3) Adhesive composition comprising said copolymer.

The present disclosure provides cyclic silyl ethers of the formula:

##STR00001##

and salts thereof. The cyclic silyl ethers may be useful as monomers for preparing polymers. Also described herein are polymers prepared by polymerizing a cyclic silyl ether and optionally one or more additional monomers. The polymers may be degradable (e.g., biodegradable). One or more OSi bonds of the polymers may be the degradation sites. Also described herein are compositions and kits including the cyclic silyl ethers or polymers; methods of preparing the polymers; and methods of using the polymers, compositions, and kits.