A polymerization in which the growth of polymer chains proceeds by addition reactions between molecules of all degrees of polymerization.
Notes: - The growth steps are expressed by: \[\text{P}_{x} + \text{P}_{y}\rightarrow \text{P}_{x + y}\hspace{35pt} \{x\}\in \{1,2, \dots \infty\}; \{y\}\in \{1,2, \dots \infty \}\] where Px and P_y denote chains of degrees of @P04740@ x and y, respectively.
- The earlier term 'addition @P04740@' embraced both the current concepts of 'polyaddition' and '@C00958-1@', but did not include '@C00958-2@'.
Source:
PAC, 1996, 68, 2287. 'Glossary of basic terms in polymer science (IUPAC Recommendations 1996)' on page 2307 (https://doi.org/10.1351/pac199668122287)