In:
Macromolecular Chemistry and Physics, Wiley, Vol. 220, No. 8 ( 2019-04)
Abstract:
An efficient route is developed to synthesize a series of platinum‐ co ‐poly( p ‐phenylenebutadiynylene)s (Pt‐ co ‐PPBs) polymers by stoichiometric mixing of poly( p ‐phenylenebutadiynylene)s (PPBs) and platinum bis‐phosphine dichlorides. This synthetic route involves two steps; first, oxidative coupling of diterminal phenyleneethynylenes (PEs) gives low‐molecular‐weight PPBs oligomers HCC(Ph(OR) 2 CCCC) n Ph(OR) 2 CCH (R = C 4 H 9 1 , R = C 8 H 17 2 , R = C 12 H 25 3 ) ( M n = 1000–3000, degrees of polymerization, P n ( M n ) = 4–6 ), which have bifunctional alkynyl end groups, and in the second step, these organic oligomers are allowed to react with trans ‐[(P n Bu 3 ) 2 PtCl 2 ] to form newly designed Pt‐ co ‐PPBs (R = C 4 H 9 4 , R = C 8 H 17 5 , R = C 12 H 25 6 ) polymers. The yield of 4–6 varies from good (63%) to high (76%) with high molecular weights ( M n ) ranging from 52 738 to 74 212, and this methodology tolerates different alkoxy substituted PPBs. These new organometallic polymers contain platinum to phenylenebutadiynylene (PB) ratio of 1:4 to 1:6 and are solution processable. Polymer 4 displays fluorescence at room temperature and fluorescence and phosphorescence at low temperature in thin film, which would be useful for studying the triplet emission in these polymers.
Type of Medium:
Online Resource
ISSN:
1022-1352
,
1521-3935
DOI:
10.1002/macp.201800494
Language:
English
Publisher:
Wiley
Publication Date:
2019
detail.hit.zdb_id:
1475026-0