Conformation of Tunable Nanocylinders: Up to Sixth-Generation Dendronized Polymers via Graft-Through Approach by ROMP. Fabien Dutertre, Ki-Taek Bang, Emmanouil Vereroudakis, Benoit Loppinet, Sanghee Yang, Sung-Yun Kang, George Fytas, Tae-Lim Choi.Hybrid Dendronized Polymers as Molecular Objects: Viscoelastic Properties in the Melt. Salvatore Costanzo, Leon Scherz, George Floudas, Rossana Pasquino, Martin Kröger, A.This article is cited by 16 publications. Finally, the polymer chains were visualized by AFM, confirming the rod-like behavior of these rigidified polymers. Thus, in the former case PG1 dominates the thermoresponsive behavior while in the latter this is done by the G2-dendrons in the copolymer. Interestingly, a 1:1 mixture of homopolymers PG1 and PG2 behaves identical with PG1 alone, while the collapse curve of copolymer PG1 co 2 is almost superimposable with that of PG2 alone. All polymers show thermoresponsive behavior which was investigated by turbidity measurements. Their glass transition temperatures ( T g) are in the range −68 ☌ < T g < −48 ☌ and thus rather low. All the polymers are soluble in water and also in organic solvents such as DCM, CHCl 3, 1,4-dioxolane, DMF, and DMSO. Their corresponding homopolymers ( PG1, PG1.5, PG2, and PG3) and copolymers ( PG1 co 2, PG1 co 3, and PG2 co 3) were synthesized via free radical polymerization. Oligo-ethylene glycol-containing dendronized monomers MG1, MG1.5, MG2, and MG3 were synthesized in a particularly easy fashion on the gram scale involving only few steps.
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