Polymer light-harvesting

Polymers interpenetration of polymer chains, phase separation, compatibility between polymers, interdiffusion of latex particles, interface thickness in blends of polymers, light-harvesting polymers, etc. 

ORGANIC CONDUCTING POLYMERS LIGHT HARVESTING AND GENERATION... 

New natural polymers based on synthesis from renewable resources, improved recyclability based on retrosynthesis to reusable precursors, and molecular suicide switches to initiate biodegradation on demand are the exciting areas in polymer science. In the area of biomolecular materials, new materials for implants with improved durability and biocompatibility, light-harvesting materials based on biomimicry of photosynthetic systems, and biosensors for analysis and artificial enzymes for bioremediation will present the breakthrough opportunities. Finally, in the field of electronics and photonics, the new challenges are molecular switches, transistors, and other electronic components molecular photoad-dressable memory devices and ferroelectrics and ferromagnets based on nonmetals. 

Supermolecular interlocked macromolecules have been paid much attention as candidates of smart materials. Polyrotaxane (PRX) is a typical example. PEG/ cyclodextrin (CD)-based polyrotaxane was firstly reported by Harada and coworkers by attachment of stoppers to pseudopolyrotaxane (pPRX) consisting of a PEG and CDs [263]. Subsequently, many CD-based PRXs have been designed and prepared as smart materials such as biomaterials, light-harvesting antennae, insulating polymers, stimuli-responsive molecular shuttles etc. [264—268]. 

An L, Tang Y, Wang S, Li Y, Zhu D (2006) A fluorescence ratiometric protein assay using light-harvesting conjugated polymers. Macromol Rapid Commun 27 993-997... 

Fig. 16 Addition of 0.017-nmol aliquots of a rhodamine B-labeled streptavidin and b Texas Red-X-labeled streptavidin to 1.51 nmol of 43. Energy transfer observed in both cases with amplified emission of the dyes to the light-harvesting conjugated polymers. Direct excitation of the dyes at 575 and 585 nm correspond to 0.100 nmol of streptavidin.

Trenor SR, Shultz AR, Love BJ, Long TE. Coumarins in polymers from light harvesting to photo-cross-linkable tissue scaffolds. Chem Rev 2004 104 3059-3077. 

The energy migration in synthetic polymers is a model for light-harvesting when the trap of the captured energy is incorporated. 

Fleming CN, Maxwell KA, DeSimone JM, Meyer TJ, Papanikolas JM. Ultrafast excited-state energy migration dynamics in an efficient light-harvesting antenna polymer based on Ru(II) and Os(II) polypyridyl complexes. J Am Chem Soc 2001 123 10336-47. 

---