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Citation: Ni Jianlong, Lin Yunqing, Wang Fosong. SYNTHESIS OF DUAL COPOLYMER OF METHYLHYDROSILOXANEDIME-THYLSILOXANE AND ITS GRAFT COPOLYMER WITH OLIGOOXYETHYLENE SIDE CHAIN[J]. Chinese Journal of Applied Chemistry, ;1992, 9(3): 7-10. shu

SYNTHESIS OF DUAL COPOLYMER OF METHYLHYDROSILOXANEDIME-THYLSILOXANE AND ITS GRAFT COPOLYMER WITH OLIGOOXYETHYLENE SIDE CHAIN

1.
Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022

Corresponding author: Ni Jianlong,
Received Date: 31 December 1990
Available Online: 29 October 1991

The ring opening copolymerization of D4 (octamethylcyelotetrasiloxane) and D4H (tetramethyleyelotetrasiloxane) was studied. The linear copolymers were obtained using toluene sulfonic acid as catalyst.The micro amounts of H₂O presented in reaction system was found to be a chief factor influencing the average molecular weight of the product. The molecular weight of polysiloxane decreased markedly on addition of hexamethyl disiloxane (HMDS). Polysiloxanes with olgooxyethylene side chain which might be used as polymer electrolyte after eomplexing with alkali metal salts were obtained through hydrosilylation of the above mentioned polysiloxane and α-allyl oligooxyethylene ether.
- octamethylcyclotetrasiloxane,
- tetramethylcyclotetrasiloxane,
- ring opening polymerization,
- hydrosilylation
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