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An electronic device having one or more components that generate heat during operation includes a structure for temperature management and heat dissipation. The structure for temperature management and heat dissipation comprises a heat transfer substrate having a surface that is in thermal communica

An electronic device having one or more components that generate heat during operation includes a structure for temperature management and heat dissipation. The structure for temperature management and heat dissipation comprises a heat transfer substrate having a surface that is in thermal communication with the ambient environment and a temperature management material in physical contact with at least a portion of the one or more components of the electronic device and at least a portion of the heat transfer substrate. The temperature management material comprises a polymeric phase change material having a latent heat of at least 5 Joules per gram and a transition temperature between 0° C. and 100° C., and a thermal conductive filler.

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1. An electronic device, wherein one or more components of the electronic device generate heat during operation, the electronic device including structure for temperature management and heat dissipation, the structure for temperature management and heat dissipation comprising: a heat transfer substr

1. An electronic device, wherein one or more components of the electronic device generate heat during operation, the electronic device including structure for temperature management and heat dissipation, the structure for temperature management and heat dissipation comprising: a heat transfer substrate having a surface that is in thermal communication with the ambient environment;a composition of two or more polymeric phase change materials, the composition in physical contact with at least a portion of the one or more components of the electronic device and at least a portion of the heat transfer substrate;at least one of the two or more polymeric phase change materials comprising, a thermal conductive filler,the composition having two different transition temperatures between −10° C. and 300° C. 2. The electronic device of claim 1, wherein the heat transfer substrate is a printed circuit board and wherein the one or more components of the electronic device are mounted to the printed circuit board. 3. The electronic device of claim 1, further comprising a second substrate in thermal communication with the heat transfer substrate. 4. The electronic device of claim 1, wherein the heat transfer substrate is an exterior surface of the electronic device. 5. The electronic device of claim 1, wherein the heat transfer substrate is a display of the electronic device. 6. The electronic device of claim 1, wherein the thermal conductive filler is a form of carbon. 7. The electronic device of claim 6, wherein the thermal conductive filler is graphene. 8. The electronic device of claim 1, wherein the thermal conductive filler is a form of alumina. 9. The electronic device of claim 1, wherein the thermal conductive filler is a boron compound. 10. The electronic device of claim 1 wherein the structure for temperature management and heat control further comprises a fusible material. 11. The electronic device of claim 1 wherein the thermally conductive filler comprises between 5% and 95% of the temperature management material. 12. The electronic device of claim 1 wherein the thermally conductive filler has a purity that is greater than 95%. 13. The electronic device of claim 1 wherein the structure for temperature management and heat control further comprises a fire resistant additive. 14. The electronic device of claim 1, further comprising a housing containing the one or more electronic components and the structure for temperature management and heat dissipation. 15. A personal computing device, comprising: a housing;a printed circuit board;one or more components attached to the printed circuit board that generate heat during operation of the electronic device;structure for temperature management and heat dissipation, the structure for temperature management and heat dissipation comprising: a heat transfer substrate having a surface that is in thermal communication with the printed circuit board and a surface that is in thermal communication with the ambient environment; anda composition of two or more polymeric phase change materials, the composition in physical contact with at least a portion of the one or more components of the electronic device and at least a portion of the heat transfer substrate, the composition having two different transition temperatures, and a thermal conductive filler. 16. The personal computing device of claim 15, wherein the device is a phone. 17. The personal computing device of claim 15, wherein the device is a tablet computer. 18. The personal computing device of claim 15, wherein the device is a laptop computer. 19. A method of constructing a personal computing device, the personal computing device comprising a housing, a printed circuit board, one or more components attached to the printed circuit board that generate heat during operation of the electronic device, and a structure for temperature management and heat dissipation, the structure for temperature management and heat dissipation comprising a heat transfer substrate having a surface that is in thermal communication with the printed circuit board and a surface that is in thermal communication with an ambient environment, a composition of two or more temperature management materials, the composition in physical contact with at least a portion of the one or more components of the electronic device and at least a portion of the heat transfer substrate, having two or more transition temperatures between −10° C. and 300° C., the method comprising: applying the composition over at least a portion of the one or more components attached to the printed circuit board;enclosing the printed circuit board, the one or more components, and the structure for temperature management and heat dissipation with the housing;curing the composition. 20. The method of claim 19, wherein the composition substantially fills any voids within the housing. 21. An electronic device, wherein one or more components of the electronic device generate heat during operation, the electronic device including structure for temperature management and heat dissipation, the structure for temperature management and heat dissipation comprising: a heat transfer substrate having a surface that is in thermal communication with an ambient environment;a composition comprising two or more temperature management materials, the composition in physical contact with at least a portion of the one or more components of the electronic device and at least a portion of the heat transfer substrate, the composition having two or more different transition temperatures between −10° C. and 150° C. 22. The electronic device of claim 1, wherein the composition is a heterogeneous mixture of the two or more polymeric phase change materials. 23. The electronic device of claim 22, wherein the composition is a heterogeneous mixture of the two or more polymeric phase change materials that are in a layered formation.