Novel Epoxide Initiators for the Carbocationic Polymerization of Isobutylene

We recently reported the synthesis of polyisobutylene (PIB) via direct initiation by epoxycyclohexyl isobutyl polyhedral oligomeric silsesquioxane (POSS®) (Figure 1) in conjunction with titanium tetrachloride (TiCl4). This system successfully initiated the living carbocationic polymerization of isob...

Full description

Saved in:

Bibliographic Details
Published in:	Macromolecular symposia. Vol. 308; no. 1; pp. 61 - 67
Main Authors:	Puskas, Judit E., Soytaş, Serap Hayat, Lim, Goy Teck
Format:	Journal Article
Language:	English
Published:	Weinheim WILEY-VCH Verlag 01-10-2011 WILEY‐VCH Verlag
Subjects:	Asymmetry Cage functionalization of polymers Hexanes living cationic polymerization Methyl chloride Polyhedral oligomeric silsesquioxane polyisobutylene Polyisobutylenes Polymerization siloxane telechelics Tetrachlorides
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	We recently reported the synthesis of polyisobutylene (PIB) via direct initiation by epoxycyclohexyl isobutyl polyhedral oligomeric silsesquioxane (POSS®) (Figure 1) in conjunction with titanium tetrachloride (TiCl4). This system successfully initiated the living carbocationic polymerization of isobutylene (IB) in hexane/methyl chloride (Hx/MeCl ‐60/40, v/v) at T = −80 °C, yielding an asymmetric telechelic PIB with one POSS® cage head group and one tert‐Cl end group.1 This paper will discuss IB polymerizations initiated by 1,2‐epoxycyclohexane and bis[3,4‐(epoxycyclohexyl)ethyl]‐tetramethyl‐disiloxane, in conjunction with TiCl4.
Bibliography:	istex:4DB41FC08BECAD0268C1D91EBAB552B586C174A6 ark:/67375/WNG-Z0W74JV0-4 ArticleID:MASY201151009 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1022-1360 1521-3900 1521-3900
DOI:	10.1002/masy.201151009