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Block copolymers containing coupling system

Aluminum isopropoxide has been used for the preparation of block copolyesters [147, 148]. Tri-block poly(e-CL-b-DXO-e-CL) was prepared by the sequential addition of different monomers to a living polymerization system initiated with aluminum isopropoxide in THF or toluene solution [95]. An alternative route for the preparation of the tri-block copolymer was to react the diblock poly(e-CL-b-DXO) containing an -OH functionality at the chain end using a difunctional coupling agent such as isocyanate or acid chloride (Scheme 18). However, the molecular weights were low and full conversion of monomers was not achieved. [Pg.21]

See other pages where Block copolymers containing coupling system is mentioned: [Pg.23]    [Pg.36]    [Pg.102]    [Pg.136]    [Pg.149]    [Pg.191]    [Pg.157]    [Pg.123]    [Pg.197]    [Pg.313]    [Pg.123]    [Pg.31]    [Pg.365]    [Pg.30]    [Pg.145]    [Pg.541]    [Pg.131]    [Pg.448]    [Pg.327]    [Pg.89]    [Pg.643]    [Pg.264]    [Pg.78]    [Pg.54]    [Pg.151]    [Pg.1497]    [Pg.139]    [Pg.48]    [Pg.49]    [Pg.370]    [Pg.665]    [Pg.164]    [Pg.20]    [Pg.154]    [Pg.104]    [Pg.309]   
See also in sourсe #XX -- [ Pg.191 ]



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Block copolymer systems

Containment system

Copolymer containing

Copolymer systems

Coupled system

System containing

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