pre-polymer molecule

Also contains definition of: telechelic molecule
A @M03667@ or @O04286@ capable of entering, through reactive groups, into further @P04740@, thereby contributing more than one @M04018@ to at least one chain of the final macromolecule. A @P04817@ molecule capable of entering into further @P04740@ through reactive @E02092@, often deliberately introduced, is known as a telechelic molecule.
PAC, 1996, 68, 2287. (Glossary of basic terms in polymer science (IUPAC Recommendations 1996)) on page 2290 [Terms] [Paper]