A composition including a polymer and a liquid, wherein the polymer exhibits lower solubility in the liquid at room temperature but exhibits greater solubility in the liquid at an elevated temperature, wherein the composition gels when the elevated temperature is lowered to a first lower temperature
A composition including a polymer and a liquid, wherein the polymer exhibits lower solubility in the liquid at room temperature but exhibits greater solubility in the liquid at an elevated temperature, wherein the composition gels when the elevated temperature is lowered to a first lower temperature without agitation, wherein the viscosity of the composition results from a process comprising (a) dissolving at the elevated temperature at least a portion of the polymer in the liquid; (b) lowering the temperature of the composition from the elevated temperature to the first lower temperature; and (c) agitating the composition to disrupt any gelling, wherein the agitating commences at any time prior to, simultaneous with, or subsequent to the lowering the elevated temperature of the composition to the first lower temperature, wherein the amount of the polymer dissolved in the liquid at the elevated temperature ranges from about 0.2% to about 5% based on the total weight of the polymer and the liquid.
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1. A composition comprising: a polymer and a first liquid, wherein the polymer exhibits lower solubility in the first liquid at room temperature but exhibits greater solubility in the first liquid at an elevated temperature, wherein the composition gels when the elevated temperature is lowered to a
1. A composition comprising: a polymer and a first liquid, wherein the polymer exhibits lower solubility in the first liquid at room temperature but exhibits greater solubility in the first liquid at an elevated temperature, wherein the composition gels when the elevated temperature is lowered to a first lower temperature without agitation;wherein the viscosity of the composition at the first lower temperature results from a process comprising:(a) dissolving at the elevated temperature at least a portion of the polymer in the first liquid;(b) lowering the temperature of the composition from the elevated temperature to the first lower temperature; and(c) agitating the composition to disrupt any gelling, wherein the agitating commences at any time prior to, simultaneous with, or subsequent to the lowering the temperature of the composition from the elevated temperature to the first lower temperature;wherein the amount of the polymer dissolved in the first liquid at the elevated temperature ranges from about 0.2% to about 5% based on the total weight of the polymer and the first liquid. 2. The composition of claim 1, wherein the polymer is a self-organizable polymer. 3. The composition of claim 1, wherein the polymer is a semiconductor. 4. The composition of claim 1, wherein the polymer is a polythiophene. 5. The composition of claim 1, wherein the composition further comprises a second different liquid, wherein the polymer is less or not capable of dissolving in the second different liquid compared to the first liquid. 6. The composition of claim 1, wherein there is visibly observable gelled material in the composition. 7. The composition of claim 1, wherein there is no visibly observable gelled material in the composition. 8. The composition of claim 1, wherein the first liquid is selected from the group consisting of dichloroethane, chloroform, tetrahydrofuran, chlorobenzene, dichlorobenzene, trichlorobenzene, nitrobenzene, toluene, xylene, mesitylene, 1,2,3,4-tetrahydronaphthelene, dichloromethane, trichloroethane, 1,1,2,2-chloroethane, and mixtures thereof. 9. The composition of claim 5, wherein the second different liquid is selected from the group consisting of methanol, ethanol, isopropanol, hexane, heptane, acetone, water, and mixtures thereof. 10. The composition of claim 1, wherein the viscosity of the composition at the first lower temperature is compatible with spin coating and inkjet printing. 11. The composition of claim 1, wherein the first lower temperature is from about 20° C. to about 30° C. 12. A composition which is a dispersion having an inkjet-printing-compatible viscosity at room temperature and including a semiconductor polymer that forms structurally ordered polymer aggregates and a first liquid, wherein the polymer exhibits lower solubility in the first liquid at room temperature but exhibits greater solubility in the first liquid at an elevated temperature, wherein the composition gels when the elevated temperature is lowered to a first lower temperature without agitation, wherein the amount of the polymer dissolved in the first liquid at the elevated temperature ranges from about 0.2% to about 5% based on the total weight of the polymer and the first liquid. 13. The composition of claim 12, wherein the polymer is a self-organizable polymer. 14. The composition of claim 12, wherein the polymer is a polythiophene. 15. The composition of claim 12, wherein the composition further comprises a second different liquid, wherein the polymer is less or not capable of dissolving in the second different liquid compared to the first liquid. 16. The composition of claim 12, wherein there is visibly observable gelled material in the composition. 17. The composition of claim 12, wherein there is no visibly observable gelled material in the composition. 18. The composition of claim 12, wherein the first liquid is selected from the group consisting of dichloroethane, chloroform, tetrahydrofuran, chlorobenzene, dichlorobenzene, trichlorobenzene, nitrobenzene, toluene, xylene, mesitylene, 1,2,3,4-tetrahydronaphthelene, dichloromethane, trichloroethane, 1,1,2,2-chloroethane, and mixtures thereof. 19. The composition of claim 15, wherein the second different liquid is selected from the group consisting of methanol, ethanol, isopropanol, hexane, heptane, acetone, water, and mixtures thereof.
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