process for the production of carbon dioxide - bisdiphenolestern of carbonate groups - extended polyalkylenoxiddiolen and their use for the production of high molecular weight, segmented polyether system, thermoplastisch polycarbonates. S Manfred,DR.,F Dieter,... - EP 被引量: 10发表: 1980年 ...
Poly(propylene carbonate) (PPC) with number average molecular weight ( M n) higher than 200 kg/mol was prepared via the terpolymerization of carbon dioxide, propylene oxide and diepoxide using Y(CCl 3OO) 3–ZnEt 2–glycerine coordination catalyst. When equimolar ZnEt 2 and diepoxide were ...
Poly(propylene carbonate) (PPC) with number average molecular weight (M_n) higher than 200 kg/mol was prepared via the terpolymeriza-tion of carbon dioxide,propylene oxide and diepoxide using Y(CCl_3OO)_3-ZnEt_2-glycerine coordination catalyst.When equimolar ZnEt_2 and diepoxide were used,...
In examples: 6-methyl-octen-(5)-one-(2) is obtained by adding diketene to a mixture of 3-methyl-penten-(1)-ol-(3) petroleum ether, pyridine and acetic acid to form 3-methyl-penten-(1)-yl-(3) acetoacetate which is separated and heated until evolution of carbon dioxide ceases (1);...
In examples: 6-methyl-octen-(5)-one-(2) is obtained by adding diketene to a mixture of 3-methyl-penten-(1)-ol-(3) petroleum ether, pyridine and acetic acid to form 3-methyl-penten-(1)-yl-(3) acetoacetate which is separated and heated until evolution of carbon dioxide ceases (1);...