Provided is a polymer of the formula:

##STR00001##

and compositions comprising the same. The polymers comprise a cyclic unsaturated group (Z.sup.3) within the siloxane polymer backbone. The polymers have been found to exhibit good thermal conductivity and may find utility in a variety of applications.

Provided is a polymer of the formula:

##STR00001##

and compositions comprising the same. The polymers comprise a cyclic unsaturated group (Z.sup.3) within the siloxane polymer backbone. The polymers have been found to exhibit good thermal conductivity and may find utility in a variety of applications.

Provided is a composition comprising: (A) a silicone polymer of the Formula (I):

M.sup.1.sub.aM.sup.2.sub.bM.sup.3.sub.cD.sup.1.sub.dD.sup.2.sub.eD.sup.3.sub.fT.sup.1.sub.gT.sup.2.sub.hT.sup.3.sub.iQ.sub.j. wherein: M.sup.1=R.sup.1R.sup.2R.sup.3SiO.sub.1/2 M.sup.2=R.sup.4R.sup.5R.sup.6SiO.sub.1/2 M.sup.3=R.sup.7R.sup.8R.sup.9SiO.sub.1/2 D.sup.1=R.sup.10R.sup.11SiO.sub.2/2 D.sup.2=R.sup.12R.sup.13SiO.sub.2/2 D.sup.3=R.sup.14R.sup.15SiO.sub.2/2 T.sup.1=R.sup.16SiO.sub.3/2 T.sup.2=R.sup.17SiO.sub.3/2 T.sup.3=R.sup.18SiO.sub.3/2 Q=SiO.sub.4/2 where R.sup.1, R.sup.2, R.sup.3, R.sup.5, R.sup.6, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.13, R.sup.15, R.sup.16 are independently chosen from a hydrogen, a C.sub.1-C.sub.60 aliphatic or aromatic group or C.sub.1-C.sub.60 alkoxy group; R.sup.4, R.sup.12, R.sup.17 are independently chosen from a C1-C10 alkyl, a C1-C10 alkoxy, or R.sup.19-A-R.sup.20 where A is chosen from a group comprising an unsaturated cyclic moiety chosen from an aromatic group, a fused aromatic group, an unsaturated alicyclic group, an unsaturated heterocyclic group, or a combination of two or more thereof; R.sup.19 is chosen from a H, a C1-C10 alkyl, allyl, vinyl, alkoxy, allyloxy, vinyloxy, acrylate, or methacrylate; and R.sup.20 is chosen from a divalent organic group; R.sup.7, R.sup.14, R.sup.18 are independently selected from hydrogen or OR.sup.22 or unsaturated monovalent radicals or radicals containing heteroatom such as oxygen, nitrogen, sulfur or radicals containing organosilane groups; and
the subscripts a, b, c, d, e, f, g, h, i, j are zero or positive subject to the following limitations: 2a+b+c+d+e+f+g+h+i+j1000, b+e+h>0 and c+f+i0 and
B) a thermally conductive filler.

Provided is a composition comprising: (A) a silicone polymer of the Formula (I):

M.sup.1.sub.aM.sup.2.sub.bM.sup.3.sub.cD.sup.1.sub.dD.sup.2.sub.eD.sup.3.sub.fT.sup.1.sub.gT.sup.2.sub.hT.sup.3.sub.iQ.sub.j. wherein: M.sup.1=R.sup.1R.sup.2R.sup.3SiO.sub.1/2 M.sup.2=R.sup.4R.sup.5R.sup.6SiO.sub.1/2 M.sup.3=R.sup.7R.sup.8R.sup.9SiO.sub.1/2 D.sup.1=R.sup.10R.sup.11SiO.sub.2/2 D.sup.2=R.sup.12R.sup.13SiO.sub.2/2 D.sup.3=R.sup.14R.sup.15SiO.sub.2/2 T.sup.1=R.sup.16SiO.sub.3/2 T.sup.2=R.sup.17SiO.sub.3/2 T.sup.3=R.sup.18SiO.sub.3/2 Q=SiO.sub.4/2 where R.sup.1, R.sup.2, R.sup.3, R.sup.5, R.sup.6, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.13, R.sup.15, R.sup.16 are independently chosen from a hydrogen, a C.sub.1-C.sub.60 aliphatic or aromatic group or C.sub.1-C.sub.60 alkoxy group; R.sup.4, R.sup.12, R.sup.17 are independently chosen from a C1-C10 alkyl, a C1-C10 alkoxy, or R.sup.19-A-R.sup.20 where A is chosen from a group comprising an unsaturated cyclic moiety chosen from an aromatic group, a fused aromatic group, an unsaturated alicyclic group, an unsaturated heterocyclic group, or a combination of two or more thereof; R.sup.19 is chosen from a H, a C1-C10 alkyl, allyl, vinyl, alkoxy, allyloxy, vinyloxy, acrylate, or methacrylate; and R.sup.20 is chosen from a divalent organic group; R.sup.7, R.sup.14, R.sup.18 are independently selected from hydrogen or OR.sup.22 or unsaturated monovalent radicals or radicals containing heteroatom such as oxygen, nitrogen, sulfur or radicals containing organosilane groups; and
the subscripts a, b, c, d, e, f, g, h, i, j are zero or positive subject to the following limitations: 2a+b+c+d+e+f+g+h+i+j1000, b+e+h>0 and c+f+i0 and
B) a thermally conductive filler.

Provided is a silicone polymer of the Formula (I):

M.sup.1.sub.aM.sup.2.sub.bM.sup.3.sub.cD.sup.1.sub.dD.sup.2.sub.eD.sup.3.sub.fT.sup.1.sub.gT.sup.2.sub.hT.sup.3.sub.iQ.sub.j. wherein: M.sup.1=R.sup.1R.sup.2R.sup.3SiO.sub.1/2 M.sup.2=R.sup.4R.sup.5R.sup.6SiO.sub.1/2 M.sup.3=R.sup.7R.sup.8R.sup.9SiO.sub.1/2 D.sup.1=R.sup.10R.sup.11SiO.sub.2/2 D.sup.2=R.sup.12R.sup.13SiO.sub.2/2 D.sup.3=R.sup.14R.sup.15SiO.sub.2/2 T.sup.1=R.sup.16SiO.sub.3/2 T.sup.2=R.sup.17SiO.sub.3/2 T.sup.3=R.sup.18SiO.sub.3/2 Q=SiO.sub.4/2 where R.sup.1, R.sup.2, R.sup.3, R.sup.5, R.sup.6, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.13, R.sup.15, R.sup.16 are independently chosen from a hydrogen, a C.sub.1-C.sub.60 aliphatic or aromatic group or C.sub.1-C.sub.60 alkoxy group; R.sup.4, R.sup.12, R.sup.17 are independently chosen from a C1-C60 alkyl, a C1-C60 alkoxy, or R.sup.19-A-R.sup.20 where A is chosen from a group comprising an unsaturated cyclic moiety chosen from an aromatic group, a fused aromatic group, an unsaturated alicyclic group, an unsaturated heterocyclic group, or a combination of two or more thereof; R.sup.19 is chosen from a H, a C1-C60 alkyl, allyl, vinyl, alkoxy, allyloxy, vinyloxy, acrylate, or methacrylate; and R.sup.20 is chosen from a divalent organic group; R.sup.7, R.sup.14, R.sup.18 are independently selected from hydrogen or OR.sup.22 or unsaturated monovalent radicals or radicals containing heteroatom such as oxygen, nitrogen, sulfur or radicals containing organosilane groups; and
the subscripts a, b, c, d, e, f, g, h, i, j are zero or positive subject to the following limitations: 2a+b+c+d+e+f+g+h+i+j1000, b+e+h>0 and c+f+i0.

Provided is a silicone polymer of the Formula (I):

M.sup.1.sub.aM.sup.2.sub.bM.sup.3.sub.cD.sup.1.sub.dD.sup.2.sub.eD.sup.3.sub.fT.sup.1.sub.gT.sup.2.sub.hT.sup.3.sub.iQ.sub.j. wherein: M.sup.1=R.sup.1R.sup.2R.sup.3SiO.sub.1/2 M.sup.2=R.sup.4R.sup.5R.sup.6SiO.sub.1/2 M.sup.3=R.sup.7R.sup.8R.sup.9SiO.sub.1/2 D.sup.1=R.sup.10R.sup.11SiO.sub.2/2 D.sup.2=R.sup.12R.sup.13SiO.sub.2/2 D.sup.3=R.sup.14R.sup.15SiO.sub.2/2 T.sup.1=R.sup.16SiO.sub.3/2 T.sup.2=R.sup.17SiO.sub.3/2 T.sup.3=R.sup.18SiO.sub.3/2 Q=SiO.sub.4/2 where R.sup.1, R.sup.2, R.sup.3, R.sup.5, R.sup.6, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.13, R.sup.15, R.sup.16 are independently chosen from a hydrogen, a C.sub.1-C.sub.60 aliphatic or aromatic group or C.sub.1-C.sub.60 alkoxy group; R.sup.4, R.sup.12, R.sup.17 are independently chosen from a C1-C60 alkyl, a C1-C60 alkoxy, or R.sup.19-A-R.sup.20 where A is chosen from a group comprising an unsaturated cyclic moiety chosen from an aromatic group, a fused aromatic group, an unsaturated alicyclic group, an unsaturated heterocyclic group, or a combination of two or more thereof; R.sup.19 is chosen from a H, a C1-C60 alkyl, allyl, vinyl, alkoxy, allyloxy, vinyloxy, acrylate, or methacrylate; and R.sup.20 is chosen from a divalent organic group; R.sup.7, R.sup.14, R.sup.18 are independently selected from hydrogen or OR.sup.22 or unsaturated monovalent radicals or radicals containing heteroatom such as oxygen, nitrogen, sulfur or radicals containing organosilane groups; and
the subscripts a, b, c, d, e, f, g, h, i, j are zero or positive subject to the following limitations: 2a+b+c+d+e+f+g+h+i+j1000, b+e+h>0 and c+f+i0.

A composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a thiol-substituted silicone ligand.

A composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a thiol-substituted silicone ligand.

Disclosed is a hydrocarbon-based cross-linked membrane used for the proton exchange membrane of a fuel cell, containing a cross-linked composite mediated by the sulfonate groups of SPPSU and SPOSS. The cross-linked composite may be a cross-linked composite of SPPSU as represented by formula (I) (where a, b, c, and d are each independently an integer of 0-4, and the total of a, b, c, and d is a rational number greater than 1 in terms of the average per repeating unit) and SPOSS as represented by formula (II) (where: each R is independently a hydrogen, a hydroxyl group, a straight or branched C1-20 alkyl or alkoxyl group optionally containing a substituent, or any of the above-mentioned structures; each e is independently an integer of 0-2 for R; x is an integer of 1-20; and the total number of sulfonate groups is a rational number greater than 2 in terms of the average per molecule).

##STR00001##

Disclosed is a hydrocarbon-based cross-linked membrane used for the proton exchange membrane of a fuel cell, containing a cross-linked composite mediated by the sulfonate groups of SPPSU and SPOSS. The cross-linked composite may be a cross-linked composite of SPPSU as represented by formula (I) (where a, b, c, and d are each independently an integer of 0-4, and the total of a, b, c, and d is a rational number greater than 1 in terms of the average per repeating unit) and SPOSS as represented by formula (II) (where: each R is independently a hydrogen, a hydroxyl group, a straight or branched C1-20 alkyl or alkoxyl group optionally containing a substituent, or any of the above-mentioned structures; each e is independently an integer of 0-2 for R; x is an integer of 1-20; and the total number of sulfonate groups is a rational number greater than 2 in terms of the average per molecule).

##STR00001##