Details

Autor(en) / Beteiligte

• Li, Jincai
• Richardson, Joseph J.
• Ejima, Hirotaka

Titel

A Simple and Feasible Synthetic Strategy towards Poly(4‐thiostyrene)

Ist Teil von

• Macromolecular chemistry and physics, 2022-09, Vol.223 (17), p.n/a

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2022

Quelle

Wiley Online Library - AutoHoldings Journals

Beschreibungen/Notizen

• Poly(4‐thiostyrene), a historically challenging to synthesize polymer, is synthesized herein via a feasible three‐step protocol. Based on the newly developed protection–deprotection strategy, the precursor polymer containing thiomethyl groups is deprotected using Li/naphthalene to yield poly(4‐thiostyrene) after acidification. This newly developed procedure is crucial for preventing crosslinking of the thiol groups and therefore the resulting polymer is soluble in common organic solvents (e.g., chloroform, tetrahydrofuran) and can be stored long‐term, which has been challenging to accomplish over the past 60 years. The successful synthesis is confirmed by various characterization techniques including NMR, Fourier‐transform infrared spectroscopy (FTIR), and Raman analysis, which collectively are new and useful data that have generally been unavailable in previous reports. This work provides a robust approach for synthesizing this promising polymer and offers a new route to investigate thiol‐containing polymers. A simple three‐step reaction is reported to yield poly(4‐thiostyrene), a historically challenging to synthesize polymer. The successful synthesis is confirmed by various characterization data, many of which are first reported herein. The resulting polymer is soluble in organic solvents such as chloroform and tetrahydrofuran and more stable than previous reports. This protocol paves the way for future applications of such polymers.