{"id":"W4410349575","doi":"10.1016/j.cej.2025.162709","title":"Reactive extrusion recycling of polymethyl methacrylate to methyl methacrylate and methacrylic acid","year":2025,"lang":"en","type":"article","venue":"Chemical Engineering Journal","topic":"biodegradable polymer synthesis and properties","field":"Materials Science","cited_by":7,"is_retracted":false,"has_abstract":true,"ca_institutions":"Polytechnique Montréal","funders":"Natural Sciences and Engineering Research Council of Canada; Arkema; Université de Montréal","keywords":"Methacrylic acid; Polymethyl methacrylate; Reactive extrusion; Extrusion; Methyl methacrylate; Methacrylate; Polymer chemistry; Materials science; Chemistry; Chemical engineering; Composite material; Polymer; Copolymer; Engineering","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.00136449,0.0002799167,0.0005812314,0.0003224017,0.0001171611,0.00009858423,0.0003636773,0.0001815978,0.00008961467],"category_scores_gemma":[0.0008566601,0.0002218013,0.0001408088,0.0004171841,0.00007981027,0.0002220785,0.0002383192,0.0004539539,0.000007716783],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00007156593,"about_ca_system_score_gemma":0.00006312851,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0000509069,"about_ca_topic_score_gemma":3.504913e-7,"domain_scores_codex":[0.9982066,0.00009849937,0.0006087556,0.0003535625,0.0002928666,0.0004397357],"domain_scores_gemma":[0.9988304,0.0003841335,0.000162715,0.0002702852,0.0001121455,0.000240336],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.0001014467,0.00002188257,0.00001893079,0.0000707424,0.00006069522,0.000004434988,0.0003331443,0.00006370299,0.946041,0.0001358167,0.00004166396,0.05310654],"study_design_scores_gemma":[0.0002620359,0.00004025394,0.00005973889,0.0003334981,0.00008259522,0.00004853392,0.00007503678,0.001337439,0.9963413,0.0002782682,0.0009053128,0.0002359421],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9130757,0.03063976,0.05425985,0.000814783,0.0007230391,0.0001195558,0.00001118724,0.00008155665,0.0002746035],"genre_scores_gemma":[0.880708,0.0001567298,0.1187299,0.0001175812,0.00010884,0.00001209555,4.585663e-7,0.00003014564,0.0001362401],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.06447,"threshold_uncertainty_score":0.9044794,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01070853042566721,"score_gpt":0.2359197806068396,"score_spread":0.2252112501811724,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}