Preferred Label : degrees of triad isotacticity, syndiotacticity, and heterotacticity;
IUPAC definition : The fractions of triads in a regular vinyl polymer that are of the i mm /i , i rr
/i and i mr /i i rm /i types, respectively. In cases where triad analysis is
not attainable, the diad isotacticity and diad syndiotacticity may be defined as the
fractions of diads in a regular vinyl polymer that are of the i m /i and i r /i
types, respectively. ( i m /i i meso /i ; i r /i i racemic /i ).;
Origin ID : D01573;
See also
The fractions of triads in a regular vinyl polymer that are of the i mm /i , i rr
/i and i mr /i i rm /i types, respectively. In cases where triad analysis is
not attainable, the diad isotacticity and diad syndiotacticity may be defined as the
fractions of diads in a regular vinyl polymer that are of the i m /i and i r /i
types, respectively. ( i m /i i meso /i ; i r /i i racemic /i ).
