A Closed-Form Recyclability Number for Neat Polypropylene

Extracted validation datasets and analysis/figure-generation code for "A Closed-Form Recyclability Number for Neat Polypropylene" (Arora, Sadhu, Garg; submitted to RSC Applied Polymers). This archive contains: (1) the six independent multipass strength/modulus-decay series used for the MFI–strength post-hoc test (main text Fig. 3); (2) seven further strength/modulus series from three additional studies, and one series held out on data-quality/provenance grounds, used in the extended post-hoc test; (3) fitted parameters (k1, standard error, R², Ncrit) for fifteen extended multipass MFI series from four additional literature studies; (4) a flattened summary table of all series with tier labels distinguishing data used in the manuscript from data excluded on provenance grounds; and (5) all Python code used to fit the random-scission linearization (eq 2), the strength–damage validation (eq 3), the reptation-exponent uncertainty propagation, the exact-stochastic (Gillespie) polydispersity verification, and the Zhurkov–Eyring mechanochemical-sensitivity sweep, and to generate every figure built from these fits. No new experimental data were generated; all digitized values are reproduced from their cited published sources (see manuscript reference list and README.md in this archive for the full per-series mapping). See README.md for a file-by-file description and run instructions.