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Threodisyndiotactic polymers

All four diisotactic polymers (cis and trans, erythro and threo) are chiral and possess optical activity. Each of the four disyndiotactic polymers possesses a mirror glide plane and is achiral. For symmetric 1,4-disubstituted 1,3-butadienes (R = R ), only the cis and transthreo-diisotactic structures are chiral. Each of the erythrodiisotactic and threodisyndiotactic polymers has a mirror glide plane. Each of the erythrodisyndiotactic polymers has a mirror glide plane. [Pg.631]

This polymer cannot be expressed as erythrodisyndiotactic or as threodisyndiotactic. Instead ABHHHHHH AHHHHBHH... [Pg.36]

Explain what is meant by erythrodiisotactic, threodiisotactic and polymers. Illustrate. Do the same for erythrodisyndiotactic and threodisyndiotactic. [Pg.33]

See other pages where Threodisyndiotactic polymers is mentioned: [Pg.626]    [Pg.626]    [Pg.843]   
See also in sourсe #XX -- [ Pg.625 , Pg.632 ]

See also in sourсe #XX -- [ Pg.625 , Pg.632 ]



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