title: "On-demand" control of thermoresponsive properties of poly(N-isopropylacrylamide) with cucurbit[8]uril host-guest complexes.
abstract: The chain end complexation of a functional PNIPAM by a cucurbit[8]uril-viologen complex causes a shift in its lower critical solution temperature (LCST) by over 5 °C. An instantaneous phase change of the thermally responsive polymer beyond its LCST can be induced by addition of the aqueous cucurbituril host-guest complex. Subsequent decomplexation upon addition of a competitive guest releases the PNIPAM terminus and triggers complete reversibility.
authors.affiliation: Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom.
authors.forename: Urs
authors.initials: U
authors.lastname: Rauwald
authors.forename: Jesús
authors.initials: J
authors.lastname: del Barrio
authors.forename: Xian Jun
authors.initials: XJ
authors.lastname: Loh
authors.forename: Oren A
authors.initials: OA
authors.lastname: Scherman
mesh_terms: D000178:Acrylamides / Q000737:chemistry*; D000180:Acrylic Resins; D001952:Bridged-Ring Compounds / Q000737:chemistry*; D007093:Imidazoles / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry; D013696:Temperature; D014755:Viologens / Q000737:chemistry; D047028:Macrocyclic Compounds; D000099246:Cucurbit(n)urils
chemical_list: D000178:Acrylamides; D000180:Acrylic Resins; D001952:Bridged-Ring Compounds; D007093:Imidazoles; D011108:Polymers; D012996:Solutions; D014755:Viologens; C507198:cucurbit(8)uril; D047028:Macrocyclic Compounds; D000099246:Cucurbit(n)urils; C052970:poly-N-isopropylacrylamide