Citation: CAO Shaokui, LI Chenguang, ZHENG Shijun, LI Zifa, KOBAYASHI Shiro. SYNTHESIS OF ORGANOGERMANE OLIGOMERS VIA LIGAND SUBSTITUTION POLYMERIZATION FROM 1, 4-DIOXANE COMPLEX OF GERMANIUM DICHLORIDE*[J]. Chinese Journal of Polymer Science, ;1997, 15(4): 347-352. shu

SYNTHESIS OF ORGANOGERMANE OLIGOMERS VIA LIGAND SUBSTITUTION POLYMERIZATION FROM 1, 4-DIOXANE COMPLEX OF GERMANIUM DICHLORIDE*

CAO Shaokui ^{**，李晨光，郑世军，李自法，KOBAYASHIShiro} ,
LI Chenguang ,
ZHENG Shijun ,
LI Zifa ,
KOBAYASHI Shiro

Received Date: 20 December 1996

Some organogermanium oligomers with different side groups were synthesized via li-gand substitution polymerization from 1, 4-dioxane complex of germanium dichloride withdifferent organolithitum compounds. The oligomers were isolated through either precipi-tation from methanol or extraction using toluene with a yield of no less than 50%. Theweiglit average molecular weight (Mw) of the oligomers is ranging from 1.4×103 to 5.9×103 depending on the type and alkyl length of the organolithium compounds used.
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