Composite materials with improved properties in compression. Appendix 5. Synthesis and anionic ring-opening polymerization of 1-germa-1,1- dimethyl(3,4,c) thieno cyclopentane. Interim report

Technical Report · Wed May 09 00:00:00 EDT 1990

OSTI ID:6734218

Zhou, S Q; Weber, W P

While there has been extensive work on several types of polymers having silicon in the main chain due to their scientific and industrial importance, few studies on polymers containing germanium in the backbone have been reported. Despite this limited research, polygermanes have been observed to have interesting properties. For example, they have been found to be photoactive. They undergo photobleaching as well as to have thermochromic properties. Most recently, germylenes, stable divalent germanium species, have been found to undergo a novel oxidation-reduction copolymerization with benzoquinones. Anionic ring opening polymerization of I yields III, a carbogermanium polymer in which both carbon and germanium atoms make up the polymer backbone.

• Research Organization: University of Southern California, Los Angeles, CA (USA). Loker Hydrocarbon Research Inst.
• OSTI ID: 6734218
• Report Number(s): AD-A-221645/5/XAB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
POLYMERS
SYNTHESIS
ANIONS
ATOMS
CARBON
COMPOSITE MATERIALS
COMPRESSION
COPOLYMERIZATION
ELECTRONS
GERMANIUM
OXIDATION
POLYMERIZATION
PROGRESS REPORT
QUINONES
RINGS
SILICON
STABILITY
VALENCE
AROMATICS
CHARGED PARTICLES
CHEMICAL REACTIONS
DOCUMENT TYPES
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
IONS
LEPTONS
MATERIALS
METALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
SEMIMETALS
360601* - Other Materials- Preparation & Manufacture
400201 - Chemical & Physicochemical Properties