{"id":"https://openalex.org/W1986323268","doi":"https://doi.org/10.1081/mb-120021603","title":"Molecular Weight Dependence of Equilibrium Melting Temperature and Lamellar Thickening of Isotactic Polypropylene with High Tacticity","display_name":"Molecular Weight Dependence of Equilibrium Melting Temperature and Lamellar Thickening of Isotactic Polypropylene with High Tacticity","publication_year":2003,"publication_date":"2003-01-08","ids":{"openalex":"https://openalex.org/W1986323268","doi":"https://doi.org/10.1081/mb-120021603","mag":"1986323268"},"language":"en","primary_location":{"id":"doi:10.1081/mb-120021603","doi":"https://doi.org/10.1081/mb-120021603","is_oa":false,"landing_page_url":"https://doi.org/10.1081/mb-120021603","pdf_url":null,"source":{"id":"https://openalex.org/S118630506","display_name":"Journal of Macromolecular Science Part B","issn_l":"0022-2348","issn":["0022-2348","1525-609X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-d","jufo-1","norway-1","poland-40","russia-white-list-2"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Macromolecular Science, Part B","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5046121603","display_name":"Koji Yamada","orcid":"https://orcid.org/0000-0002-8355-7060","observed_orcids":["https://orcid.org/0000-0002-8355-7060"]},"institutions":[{"id":"https://openalex.org/I4405265353","display_name":"Sunallomer Ltd. (Japan)","ror":"https://ror.org/04jb79237","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405265353"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Koji Yamada","raw_affiliation_strings":["a   Kawasaki Development Center , SunAllomer Ltd. , Kawasaki,  Japan","Kawasaki Development Center , SunAllomer Ltd. , Kawasaki, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"a   Kawasaki Development Center , SunAllomer Ltd. , Kawasaki,  Japan","institution_ids":["https://openalex.org/I4405265353"]},{"raw_affiliation_string":"Kawasaki Development Center , SunAllomer Ltd. , Kawasaki, Japan","institution_ids":["https://openalex.org/I4405265353"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056441326","display_name":"Masamichi Hikosaka","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I113306721","display_name":"Hiroshima University","ror":"https://ror.org/03t78wx29","country_code":"JP","type":"education","lineage":["https://openalex.org/I113306721"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masamichi Hikosaka","raw_affiliation_strings":["b   Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima,  Japan","Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"b   Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima,  Japan","institution_ids":["https://openalex.org/I113306721"]},{"raw_affiliation_string":"Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima, Japan","institution_ids":["https://openalex.org/I113306721"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066268364","display_name":"Akihiko Toda","orcid":"https://orcid.org/0000-0002-7051-650X","observed_orcids":["https://orcid.org/0000-0002-7051-650X"]},"institutions":[{"id":"https://openalex.org/I113306721","display_name":"Hiroshima University","ror":"https://ror.org/03t78wx29","country_code":"JP","type":"education","lineage":["https://openalex.org/I113306721"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Akihiko Toda","raw_affiliation_strings":["b   Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima,  Japan","Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"b   Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima,  Japan","institution_ids":["https://openalex.org/I113306721"]},{"raw_affiliation_string":"Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima, Japan","institution_ids":["https://openalex.org/I113306721"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101725157","display_name":"Shinichi Yamazaki","orcid":"https://orcid.org/0000-0002-4673-1410","observed_orcids":["https://orcid.org/0000-0002-4673-1410"]},"institutions":[{"id":"https://openalex.org/I113306721","display_name":"Hiroshima University","ror":"https://ror.org/03t78wx29","country_code":"JP","type":"education","lineage":["https://openalex.org/I113306721"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shinichi Yamazaki","raw_affiliation_strings":["b   Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima,  Japan","Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"b   Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima,  Japan","institution_ids":["https://openalex.org/I113306721"]},{"raw_affiliation_string":"Faculty of Integrated Arts and Sciences , Hiroshima University , Higashi-Hiroshima, Japan","institution_ids":["https://openalex.org/I113306721"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5003475632","display_name":"Katsuharu Tagashira","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4405265353","display_name":"Sunallomer Ltd. (Japan)","ror":"https://ror.org/04jb79237","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405265353"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Katsuharu Tagashira","raw_affiliation_strings":["a   Kawasaki Development Center , SunAllomer Ltd. , Kawasaki,  Japan","Kawasaki Development Center , SunAllomer Ltd. , Kawasaki, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"a   Kawasaki Development Center , SunAllomer Ltd. , Kawasaki,  Japan","institution_ids":["https://openalex.org/I4405265353"]},{"raw_affiliation_string":"Kawasaki Development Center , SunAllomer Ltd. , Kawasaki, Japan","institution_ids":["https://openalex.org/I4405265353"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5046121603"],"corresponding_institution_ids":["https://openalex.org/I4405265353"],"apc_list":null,"apc_paid":null,"fwci":1.8257,"has_fulltext":false,"cited_by_count":31,"citation_normalized_percentile":{"value":0.82087542,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"42","issue":"3-4","first_page":"733","last_page":"752"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10389","display_name":"Polymer crystallization and properties","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2507","display_name":"Polymers and Plastics"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10389","display_name":"Polymer crystallization and properties","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2507","display_name":"Polymers and Plastics"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10661","display_name":"biodegradable polymer synthesis and properties","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/2502","display_name":"Biomaterials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10474","display_name":"Material Dynamics and Properties","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/isotactic-polypropylene","display_name":"isotactic polypropylene","score":0.9980000257492065},{"id":"https://openalex.org/keywords/molecular-weight-dependence","display_name":"molecular weight dependence","score":0.9309999942779541},{"id":"https://openalex.org/keywords/equilibrium-melting-temperature","display_name":"equilibrium melting temperature","score":0.8930000066757202},{"id":"https://openalex.org/keywords/lamellar-thickening","display_name":"lamellar thickening","score":0.9869999885559082},{"id":"https://openalex.org/keywords/lamellar-thickness","display_name":"lamellar thickness","score":0.9300000071525574},{"id":"https://openalex.org/keywords/spherulites","display_name":"spherulites","score":0.9269999861717224},{"id":"https://openalex.org/keywords/crystallization-temperature","display_name":"crystallization temperature","score":0.6610000133514404},{"id":"https://openalex.org/keywords/melting-kinetics","display_name":"melting kinetics","score":0.4429999887943268}],"concepts":[{"id":"https://openalex.org/C58018886","wikidata":"https://www.wikidata.org/wiki/Q372660","display_name":"Tacticity","level":4,"score":0.8776537775993347},{"id":"https://openalex.org/C77851909","wikidata":"https://www.wikidata.org/wiki/Q6481705","display_name":"Lamellar structure","level":2,"score":0.8711965084075928},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.6788656711578369},{"id":"https://openalex.org/C133347239","wikidata":"https://www.wikidata.org/wiki/Q486921","display_name":"Isothermal process","level":2,"score":0.6422304511070251},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.6271993517875671},{"id":"https://openalex.org/C2985276288","wikidata":"https://www.wikidata.org/wiki/Q16873139","display_name":"Melting temperature","level":2,"score":0.5279699563980103},{"id":"https://openalex.org/C148898269","wikidata":"https://www.wikidata.org/wiki/Q1108792","display_name":"Kinetics","level":2,"score":0.5222295522689819},{"id":"https://openalex.org/C203036418","wikidata":"https://www.wikidata.org/wiki/Q284256","display_name":"Crystallization","level":2,"score":0.5122451186180115},{"id":"https://openalex.org/C122865956","wikidata":"https://www.wikidata.org/wiki/Q825643","display_name":"Glass transition","level":3,"score":0.49837160110473633},{"id":"https://openalex.org/C2779559920","wikidata":"https://www.wikidata.org/wiki/Q911138","display_name":"Thickening","level":2,"score":0.4976711571216583},{"id":"https://openalex.org/C13530604","wikidata":"https://www.wikidata.org/wiki/Q15318","display_name":"Melting point","level":2,"score":0.48485955595970154},{"id":"https://openalex.org/C188027245","wikidata":"https://www.wikidata.org/wiki/Q750446","display_name":"Polymer chemistry","level":1,"score":0.3763061463832855},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.23006319999694824},{"id":"https://openalex.org/C44228677","wikidata":"https://www.wikidata.org/wiki/Q181898","display_name":"Polymerization","level":3,"score":0.10939621925354004},{"id":"https://openalex.org/C521977710","wikidata":"https://www.wikidata.org/wiki/Q81163","display_name":"Polymer","level":2,"score":0.08989700675010681},{"id":"https://openalex.org/C126348684","wikidata":"https://www.wikidata.org/wiki/Q3456979","display_name":"Polymer science","level":1,"score":0.07226812839508057},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1081/mb-120021603","doi":"https://doi.org/10.1081/mb-120021603","is_oa":false,"landing_page_url":"https://doi.org/10.1081/mb-120021603","pdf_url":null,"source":{"id":"https://openalex.org/S118630506","display_name":"Journal of Macromolecular Science Part B","issn_l":"0022-2348","issn":["0022-2348","1525-609X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-d","jufo-1","norway-1","poland-40","russia-white-list-2"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Macromolecular Science, Part B","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W1595724432","https://openalex.org/W1978237099","https://openalex.org/W1987596612","https://openalex.org/W2004356852","https://openalex.org/W2016422878","https://openalex.org/W2026475014","https://openalex.org/W2070485498","https://openalex.org/W2076366219","https://openalex.org/W2087321646","https://openalex.org/W2089974101","https://openalex.org/W2110721165","https://openalex.org/W2118113802","https://openalex.org/W2134947161","https://openalex.org/W2162373678","https://openalex.org/W2314753372","https://openalex.org/W2319108482"],"related_works":["https://openalex.org/W1966363235","https://openalex.org/W7029002783","https://openalex.org/W2089676568","https://openalex.org/W2026475014","https://openalex.org/W2311263417","https://openalex.org/W2032504774","https://openalex.org/W2068299237","https://openalex.org/W2385210998","https://openalex.org/W2061822385","https://openalex.org/W4235169551"],"abstract_inverted_index":{"Molecular":[0],"weight":[1,108],"(M)":[2],"dependence":[3,109,129],"of":[4,9,49,63,67,96,110,125,130,140],"the":[5,40,111],"equilibrium":[6],"melting":[7,53,62],"temperature":[8,54,79,118],"isotactic":[10],"polypropylene":[11],"(iPP)":[12],"with":[13,22,123],"high":[14,78,89],"tacticity":[15],"([mmmm]=99.6%)":[16],"was":[17,31,57,80,104,114,133],"studied.":[18],"Four":[19],"fractionated":[20],"iPPs":[21],"M":[23],"n=23\u00d7103,":[24],"64\u00d7103,":[25],"94\u00d7103,":[26],"and":[27],"263\u00d7103":[28],"were":[29],"used.":[30],"obtained":[32],"by":[33,59,83,138],"using":[34],"an":[35],"improved":[36],"method":[37],"based":[38],"on":[39,52,70],"Gibbs\u2013Thomson":[41],"plot":[42],"proposed":[43],"in":[44],"previous":[45],"papers.":[46],"The":[47,65,100,106,116,127],"effect":[48,66],"\u201cmelting":[50],"kinetics\u201d":[51],"(T":[55,92,119],"m)":[56],"eliminated":[58,82],"observing":[60,84],"isothermal":[61],"spherulites.":[64],"lamellar":[68,131,141],"thickening":[69],"T":[71,74],"m":[72,75],"during":[73],"measurement":[76],"at":[77,88],"also":[81,121],"thick":[85],"lamellae":[86],"formed":[87],"crystallization":[90],"temperatures":[91],"c=148\u223c166\u00b0C).":[93],"With":[94],"increase":[95,124],"M,":[97],"increased":[98,122],"significantly.":[99],"empirical":[101],"equation,":[102],"(\u00b0C),":[103],"obtained.":[105],"molecular":[107],"\u03b12\u2013\u03b12\u2032":[112],"transition":[113,117],"observed.":[115],"\u03b12\u2013\u03b12\u2032)":[120],"M.":[126],"\u0394T":[128],"thickness":[132],"concluded":[134],"to":[135],"be":[136],"controlled":[137],"that":[139],"thickening.":[142]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":2},{"year":2020,"cited_by_count":1},{"year":2018,"cited_by_count":2},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-09-24T07:57:37.273135","created_date":"2016-06-24T00:00:00"}