[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-500748-105":59,"doc-detail-500748-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","crystallization-and-melting-behaviors-of-polyolefin-elastomer-studied-by-fast-scanning-chip-calorimetry","Crystallization and Melting Behaviors of Polyolefin Elastomer Studied by Fast Scanning Chip Calorimetry","","The crystallization behavior of two commercial polyolefin elastomer (POE) samples is investigated using fast scanning chip calorimetry (FSC). Non-isothermal crystallization during cooling to low temperatures cannot be fully suppressed even at the highest efficient cooling rate used, restricting isothermal crystallization to a narrow temperature window. When cooled below the non-isothermal crystallization temperature, a time-dependent low-temperature melting peak appears alongside the high-temperature melting peak, and its growth trends with crystallization temperature. Peak evolution is explained by differences in the lengths of crystallizable ethylene sequences.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/crystallization-and-melting-behaviors-of-polyolefin-elastomer-studied-by-fast-scanning-chip-calorimetry/500748/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/crystallization-and-melting-behaviors-of-polyolefin-elastomer-studied-by-fast-scanning-chip-calorimetry/500748.png","ImageObject",300,407,{"name":92,"@type":93},"Aria Callaghan","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-23","2026-10-03",true,{"@type":102,"interactionType":103,"userInteractionCount":24},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What technique is used to study POE crystallization and melting behaviors?","Question",{"text":112,"@type":113},"Fast scanning chip calorimetry (FSC) is used to investigate the crystallization behavior and melting peaks of two commercial POE samples.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Why is isothermal crystallization limited to a narrow temperature range?",{"text":117,"@type":113},"Non-isothermal crystallization during cooling cannot be inhibited under the largest efficient cooling rate, so isothermal crystallization becomes possible only within a narrow temperature window.",{"name":119,"@type":110,"acceptedAnswer":120},"What causes the low-temperature melting peak observed after cooling to selected crystallization temperatures?",{"text":121,"@type":113},"The low-temperature melting peak arises from crystals that are crystallized isothermally at the selected crystallization temperature, and it depends on crystallization time and temperature.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},500748,1791834967,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":24,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":52,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":144},962084926284,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","Chinese Journal of  \nPOLYMER SCIENCE  RESEARCH ARTICLE   \n\n| [https://doi.org/10.1007/s101](https://doi.org/10.1007/s101)18-025-3346-2\u003Cbr>Chinese J. Polym. Sci. 2025, 43, 1458–1467\u003Cbr>Crystallization and Melting Behaviors of Polyolefin Elastomer Studied by Fast Scanning Chip Calorimetry\u003Cbr>Wen-Yan Wanga, Yan-Feng Jianga, Xing-Long Zhaoa, Deng-Fei Wanga, Teng-Jie Gea, Dimitri A. Ivanovb, Ying Luc*, and Yong-Feng Menc,d*\u003Cbr>a Daqing Petrochemical Research Center, Petrochemical Research Institute of PetroChina, Daqing 163714, China b Biomaterials Research Axis, Sirius University of Science and Technology, 1 Olympic Ave, 354340 Sochi, Russia\u003Cbr>c State Key Laboratory of Polymer Science and Technology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China d School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China\u003Cbr> Electronic Supplementary Information |\n| --- |\n| Abstract The crystallization behavior of two commercial polyolefin elastomer (POE) samples was investigated using the fast scanning chip calorimetry (FSC) technique. Non-isothermal crystallization of the POE samples during cooling to low temperatures cannot be inhibited under the largest efficient cooling rate employed in the current work. Thus, the isothermal crystallization of POE samples was limited to a narrow temperature range. When the POE samples were cooled to a certain temperature below the non-isothermal crystallization temperature for crystallization, a crystallization time dependent melting peak appeared in the low temperature region besides the high temperature melting peak originated from the non-isothermal crystallization. This low temperature melting peak was arisen from the melting of crystals isothermally crystallized at the selected crystallization temperature. At each crystallization temperature, the lengths of crystallizable segments were different, thus, the low melting peak increased with increasing the crystallization temperature. In terms of the high melting peak attributed to the non-isothermally crystallized crystals, it somehow decreased with increasing crystallization time and then became constant with further increasing crystallization time atthe selected crystallization temperature. This could be explained by the fact that the crystallizable sequences with longer length would nucleate and crystallize first to form thicker crystals during cooling. The subsequent crystallization contributed by the shorter crystallizable sequences will result in the formation of thinner crystals, causing the melting peak to shift to the lower temperature.\u003Cbr>Keywords Polyolefin elastomer; Successive self-nucleation and annealing (SSA); Crystallization; Fast scanning chip calorimetry (FSC); Melting |\n| Citation: Wang, W. Y.; Jiang, Y. F.; Zhao, X. L.; Wang, D. F.; Ge, T. J.; Ivanov, D. A.; Lu, Y.; Men, Y. F. Crystallization and melting behaviors of polyolefinelastomer studied by fast scanning chip calorimetry. Chinese J. Polym. Sci. 2025, 43, 1458–1467. |\n\nINTRODUCTION  \nPolyolefin elastomer (POE) with excellent flexibility is widely used to modify the toughness of other general-purpose polyolefins, particularly isotactic polypropylene (iPP), for automotive applications.[1−6] The mechanical properties of polymers are sensitive to their crystalline microstructures. Therefore, understanding the evolution of the crystalline microstructures of polymers is crucial for controlling their macroscopic properties. Unlike homopolymers, POE is composed of ethylene and other olefin counits.[7] Therefore, the molecular chains of POE are known to have diverse distribution features, such as a wide distribution of co-unit fractions or crystallizable ethylene segment lengths among different molecular chains.[8−11] Consequently, the crystallization of POE is extremely complex compared with  \n* Corresponding authors, E-mail: [luying@ciac.ac.cn](luying@ciac.ac.cn) (Y.L.)  \n[E-mail:](E-ma","cbCaibLUv7VehqWl","https://ap.wps.com/l/cbCaibLUv7VehqWl","pdf",2166759,"English","# Abstract\n# Introduction\n## Background on POE and crystallization complexity\n## Role of crystalline microstructures in polymer properties\n## SSA experiments and melting curves\n## Need to study low-temperature crystallization of POE with improved methods","[{\"question\":\"What technique is used to study POE crystallization and melting behaviors?\",\"answer\":\"Fast scanning chip calorimetry (FSC) is used to investigate the crystallization behavior and melting peaks of two commercial POE samples.\"},{\"question\":\"Why is isothermal crystallization limited to a narrow temperature range?\",\"answer\":\"Non-isothermal crystallization during cooling cannot be inhibited under the largest efficient cooling rate, so isothermal crystallization becomes possible only within a narrow temperature window.\"},{\"question\":\"What causes the low-temperature melting peak observed after cooling to selected crystallization temperatures?\",\"answer\":\"The low-temperature melting peak arises from crystals that are crystallized isothermally at the selected crystallization temperature, and it depends on crystallization time and temperature.\"}]","Crystallization and Melting Behaviors of Polyolefin Elastomer Studied by Fast Scanning Chip Calorimetry | PDF",1791014692,25]