Phase change solvents for thermoplastic elastomers

A composition comprising:

• a) from about 1 to about 99 wt % a thermoplastic elastomer, which is a block copolymer having at least one soft block and at least one hard block;
• b) from about 1 to about 70 wt % a phase change solvent having the general formula:
• R′—Py-(Q-Px)n−2-Q-Py—R;
• (I)
• R′—Py-(Q-Px)n—R;
• (II)
• R′-(Q-Px)n—R;
• (III)
• R′-(Q-Px)n−1-Q-Py—R;
• (IV)
• R′-(Q-Px)n−1-Q-R;
• or (V)
• mixtures thereof;
• (VI)
• wherein Q is a para-ring substituted difunctional aromatic moiety, and wherein the substitutions are in the 1,4 positions;
• P is CH2;
• R and R′ are the same or different and are independently selected from H, CH3, COOH, CONHR1, CONR1R2, NHR3, NR3R4, hydroxyl, or C1-C30 alkoxy;
• wherein R1, R2, R3 and R4 are the same or different and are independently selected from H or linear or branched alkyl from C1-C30;
• x is an integer from 1 to 30;
• y is an integer from 1 to 30;
• and n is an integer from 3 to 7;
• wherein the phase change solvent has a phase change in a temperature range from about 40° C. to about 250° C.