Journal of Polymer Science Part A: Polymer Chemistry

Solvent-free nanofluid and prepolymer are air cured to produce a tough and transparent clearcoat. The solvent-free nanofluid is prepared by surface modifying nanosilica (9–10 nm) with an ionic liquid type of organic salt and with reactive isothiocyanate. It is dissolved in a novel poly(propylene oxide) isophorone diisocyanate prepolymer, coated, and cured with atmospheric moisture at room temperature. The proportion of nanofluid (1-16%) tunes the moduli and produces nanocomposites harder (2×) to softer (½×) than the control.

Well-defined PFMA was successfully synthesized by reversible addition fragmentation chain-transfer (RAFT) polymerization technique using CDTSPA and 4 cyano-4-(thiobenzoylthio) pentanoic acid (CTBPA) as different chain transfer agents (CTA). Thereafter, reactive furfuryl group of PFMA was used to prepare crosslinked polymeric materials via DA reaction using different bismaleimides. These crosslinked polymers showed thermally amendable properties through DA and retro-DA click reaction only by applying temperature.

An atom transfer radical polymerization (ATRP) initiator has been chemically immobilized on the surface of carbon hard spheres (CHSs) in only one step by a radical trapping method. These initiator immobilized CHSs are used to graft polystyrene and poly(methyl methacrylate) chains via surface-initiated ATRP. The resultant grafted CHSs are covered by a dense uniform film of grafted polymers. The thickness of grafted polymer is controlled by tuning the amount of sacrificial free initiator during graft polymerization.

N-Vinylcaprolactam and di(ethylene glycol) methyl ether methacrylate are copolymerized in high yield via miniemulsion polymerization. The lower critical solution temperature (LCST) of the obtained linear copolymers is controlled by their composition and the concentration of drugs in the solutions.

Poly(1,3-pentadiene) synthesized by cationic polymerization of 1,3-pentadiene with ^tBuCl/TiCl₄ initiating system contains only homo and mixed dyads with trans−1,4-, trans−1,2-, and cis−1,2-structures with regular and inverse (head-to-head or tail-to-tail) enchainment, whereas cis−1,4- and 3,4-units are totally absent.