SYNTHESIS OF HOMOPOLYMERS AND BLOCK-COPOLYMERS OF METHACRYLATES USINGA MIXED AL LI ALKYL INITIATOR/

Citation
Dm. Haddleton et al., SYNTHESIS OF HOMOPOLYMERS AND BLOCK-COPOLYMERS OF METHACRYLATES USINGA MIXED AL LI ALKYL INITIATOR/, Macromolecular symposia, 91, 1995, pp. 93-105
Citations number
14
Categorie Soggetti
Polymer Sciences
Journal title
ISSN journal
10221360
Volume
91
Year of publication
1995
Pages
93 - 105
Database
ISI
SICI code
1022-1360(1995)91:<93:SOHABO>2.0.ZU;2-N
Abstract
We report the use of a triisobutylaluminium/tert-butyllithium initiato r in the preparation of living methacrylate homopoloymers and a wide r ange of methacrylic block copolymers. The system, which we have referr ed to as Screened Anionic Polymerisation (SAP), is very tolerant of im purities and is effective in hydrocarbon solution with reaction rates such that high molecular weight polymers can be produced at temperatur es readily accessible for large scale industrial use. A mechanism for the reaction is proposed based on preliminary spectroscopic evidence.