Experimental

Abstract

Polymer synthesis and modification were carried out under inert atmosphere using standard Schlenk line techniques or under argon in a glovebox (MBRAUN). Phosphorus pentachloride was purified by sublimation and stored under argon. Triethylamine was distilled and stored over molecular sieves. Phosphonitrilic chloride trimer, divinyl adipate, ethylene glycol allyl ether, ethyl-3-mercaptopropionate and anhydrous toluene (toluene anh.) were bought from TCI Europe. Glutathione and all standard solvents were bought from VWR. Jeffamine-1000 was received from Huntsman. All other chemicals, anhydrous dichloromethane (DCM anh.) and tetrahydrofurane (THF anh.) were purchased from Sigma Aldrich and used without further purification.