Chemo‐ and stereoselective polymerization of 3‐methylenehepta‐1, 6‐Diene and Its thiol‐ene modification. Issue 6 (15th March 2017)

• Record Type: Journal Article
• Authors: Li, Lei; Li, Shihui; Cui, Dongmei
• Is Part Of: Journal of polymer science. Volume 55:Issue 6(2017)
• Page Start: 1031
• Page End: 1039
• Publication Date: 2017-03-15
• Subjects: conjugated diene -- modification -- polybutadiene -- stereoselective polymerization -- thiol‐ene reaction -- Ziegler-Natta polymerization; 547
• DOI: 10.1002/pola.28463
• Languages: English
• ISSNs: 0887-624X

Abstract

ABSTRACT: Here we report on the coordination polymerization of a vinyl‐functionalized butadiene monomer, 3‐methylenehepta‐1, 6‐diene (MHD) with exclusive conjugated diene chemoselectivity, high 1, 2‐regioselectivity and moderate isotacticity (1, 2‐selectivity > 99%, mm triad = 93%). Random copolymers of MHD and other conjugated diene (isoprene or myrcene) are also synthesized. The pendent vinyl groups of MHD homo or copolymers could be quantitatively converted into various functional groups via thiol‐ene click reaction. The resulting functionalized polybutadiene‐based material display versatile thermal and surface properties. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem.2017, 55, 1031–1039 Abstract : 1, 2‐Poly(3‐methylenehepta‐1, 6‐diene), a structural analogue of 1, 2‐PB, is synthesized by chemo‐ and stereoselective polymerization of a vinyl‐functionalized butadiene monomer. Subsequent thiol‐ene chemistry studies indicate that the pendant α ‐olefin type double bond of 1, 2‐poly(3‐methylenehepta‐1, 6‐diene) can be fully functionalized, in contrast to the incomplete functionalization of 1, 2‐PB.