Synthesis of functionalized polyisobutylenes using the propylene epoxide/TiCl4 initiating system

文献情報

出版日 2014-04-23

DOI 10.1039/C4PY00363B

インパクトファクター 5.582

著者

Alejandra Alvarez Albarran, Elena Silantyeva, Kwang Su Seo

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要旨

In this paper, we report the synthesis of symmetric and asymmetric telechelic polyisobutylenes (PIBs). A PIB with a primary hydroxy head group and an allyl end group (HO–PIB–Allyl, Mn = 4300 g mol−1; Mw/Mn = 1.2) was synthesized by living carbocationic polymerization of isobutylene (IB) using propylene epoxide as an initiator and allyltrimethylsilane as a terminating agent. Thiol–ene click chemistry using 2-mercaptoethanol and 1,2-ethanedithiol yielded an asymmetric HO–PIB–SEt–OH (Mn = 4646 g mol−1; Mw/Mn = 1.18) and a symmetric HO–PIB–OH (Mn = 8594 g mol−1; Mw/Mn = 1.2) respectively. A symmetric allyl telechelic PIB (Mn = 8669 g mol−1; Mw/Mn = 1.2) was prepared by enzymatic transesterification of divinyl adipate with the primary hydroxy group of HO–PIB–Allyl.

掲載誌

Polymer Chemistry

CiteScore: 8.6

自己引用率: 7.3%

年間論文数: 457

Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.

Synthesis of functionalized polyisobutylenes using the propylene epoxide/TiCl4 initiating system

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Polymer Chemistry

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