Synthesis of block copolymers of methyl siloxane, phenyl siloxane, vinyl siloxane, etc
Synthesis of homo poly(dimethylsiloxane) PDMS, homo poly(diphenylsiloxane PDPS, and di- and tri- block copolymers of PDMS and PDPS have been carried out by anionic living polymerization, using the following reagents: hexamethylcyclotrisiloxane, HMTS and hexaphenylcyclotrisiloxane, HPTS (monomers), n-BuLi and dilithium diphenyldisilanolate, DLS (initiators), DMSO and THF (promoters) and Toluene (solvent). Lithium based catalysts are used in order to minimize siloxane rearrangement (equilibration) reactions.
- Research Organization:
- California Univ., Livermore (USA). Lawrence Livermore Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5296016
- Report Number(s):
- UCRL-15159
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
AROMATICS
CATALYSTS
CHEMICAL REACTIONS
COPOLYMERS
DMSO
FURANS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
POLYMERIZATION
POLYMERS
RESEARCH PROGRAMS
SILOXANES
SULFOXIDES
SYNTHESIS
TETRAHYDROFURAN
TOLUENE
400201* -- Chemical & Physicochemical Properties
AROMATICS
CATALYSTS
CHEMICAL REACTIONS
COPOLYMERS
DMSO
FURANS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
POLYMERIZATION
POLYMERS
RESEARCH PROGRAMS
SILOXANES
SULFOXIDES
SYNTHESIS
TETRAHYDROFURAN
TOLUENE