Abstract: A crosslinked polymeric composition comprising A, B, C, D, and E units having the following structures, respectively: and wherein dashed bonds represent optional bonds; the asterisks (*) in C units represent covalent bond connection points with asterisks in A units and E units; the asterisks (*) in D units represent covalent bond connection points with asterisks in B units and E units; wherein a portion of E units are bound to C units, a portion of E units are bound to D units, and a portion of E units are bound to both C and D units; and the composition contains a multiplicity of A, B, C, D, and E units. Also described is a method for producing the crosslinked polymeric composition by reacting epoxy-containing molecules (A molecules), isocyanate-containing molecules (B molecules), and disulfide-containing molecules (C molecules).

Abstract: A crosslinked polymeric composition comprising A, B, C, D, and E units having the following structures, respectively: wherein dashed bonds represent optional bonds; the asterisks (*) in C units represent covalent bond connection points with asterisks in A units and E units; the asterisks (*) in D units represent covalent bond connection points with asterisks in B units and E units; wherein a portion of E units are bound to C units, a portion of E units are bound to D units, and a portion of E units are bound to both C and D units; and the composition contains a multiplicity of A, B, C, D, and E units. Also described is a method for producing the crosslinked polymeric composition by reacting epoxy-containing molecules (A molecules), isocyanate-containing molecules (B molecules), and disulfide-containing molecules (C molecules).

Abstract: A crosslinked polymeric composition comprising a base polymer containing unconjugated carbon-carbon double bonds of the formula —CRa?CRb—, wherein a portion of said unconjugated carbon-carbon double bonds in said base polymer are interconnected by a crosslinker (L) as shown in the following structure: wherein: Ra and Rb are independently selected from hydrogen atom and hydrocarbon groups, wherein Ra and Rb may optionally interconnect to form a ring; x represents the molar percentage of segments that are linked with the linker L throughout the crosslinked polymeric composition; L is a crosslinker having the formula: —S—R1-La-R2-Lb-R1—S—; R1 and R2 are independently selected from hydrocarbon linking groups containing at least one carbon atom; La and Lb independently represent dynamic reversible crosslinking groups; and Za and Zb independently represent remaining portions of the base polymer.

Abstract: A crosslinked adhesive composition comprising: (i) a polymer; (ii) solid particles embedded within the polymer; and (iii) a multiplicity of boronate linkages crosslinking between the polymer and solid particles, wherein the boronate linkages have the formula wherein the polymer and particles are connected to each other through the boronate linkages, and the crosslinked adhesive composition has an ability to bond surfaces and a further ability to thermally debond and rebond the surfaces. Also described herein is a method of bonding first and second surfaces together, the method comprising placing the above-described crosslinked adhesive composition onto the first surface and pressing the second surface onto the crosslinked adhesive composition on the first surface.