Cyclic siloxanes, compositions, methods, and articles

A cyclic siloxane compound of Formula (I):

• wherein:
• each R1 and R2 is independently a (C1-C4)alkyl;
• for L1, either (i) each L1 is a single bond or (ii) at least a portion of the L1 groups are single bonds and at least a portion of the L1 groups are an alkylene bonded to a group selected from oxy, thio, carbonyl, —NH—, and combinations thereof;
• each L2 is independently a single bond, an alkylene, or an alkylene bonded to a group selected from oxy, thio, carbonyl, —NH—, and combinations thereof,
• each R3 is independently a linear (C14-C100)alkyl;
• each R4 is independently a (C1-C30)alkyl, a (C2-C30)heteroalkyl having at least one oxygen, sulfur, or —NH— group, or a (C1-C30)alkyl substituted with a fluoro, thiol, isocyanato, cyanato, hydroxyl, glycidoxy, or epoxy group;
• with the proviso that L1, L2, and R4 are selected such that each Si atom is directly bonded to an alkylene or an alkyl;
• m is an integer of at least 2;
• n is an integer of 0 or above;
• m+n is an integer of at least 3;
• and
• the cyclic siloxane compound is a solid at 25° C. wherein at least one of L1 or L2 is an alkylene bonded to a group selected from oxy, thio, carbonyl, —NH, and combinations thereof with the proviso that when n is 0, at least a portion of the L1 groups are an alkylene bonded to a group selected from oxy, thio, carbonyl, —NH, and combinations thereof.