Promotion of Self-Nucleation with Latent Form I Nuclei in Polybutene-1 and Its Copolymer
文献类型：期刊论文
| 作者 | Wang, Zefan1,2; Dong, Xia1,2; Cavallo, Dario3; Muller, Alejandro J.4,5,6; Wang, Dujin1,2 |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2018-08-14 |
| 卷号 | 51期号:15页码:6037-6046 |
| ISSN号 | 0024-9297 |
| DOI | 10.1021/acs.macromol.8b01313 |
| 英文摘要 | The formation of form I nuclei of polybutene-1 (PB-1) and its copolymer with polyethylene (PB1-ran-PE) has been studied by means of modified self-nucleation protocols. Even when the self-nucleation temperature was high enough and all form II crystals melt, recrystallization can be accelerated if the melt-crystallized sample was annealed at low temperatures (below 60 degrees C for PB-1 and 75 degrees C for PB1-ran-PE) for just 3 min. These results suggest the formation of latent form I nuclei within form II crystals. This hypothesis is consistent with the observed growth of a small amount of form I crystals during heating, after previous annealing at temperature lower than 20 degrees C. In addition, a peculiar phenomenon was found in PB1-ran-PE, as both form II and form I' can be induced by the presence of latent form I nuclei, due to cross-nucleation and self-nucleation effects, respectively. The final ratio of the two kinds of crystal forms is a result of the competition between the two nucleation rates, which strongly depend on crystallization temperature. In this work, we have shown that careful design of novel self-nucleation protocols can yield evidence of the early stages of form II to form I transition, even when the degree of transformed crystals is below the limit of detection of conventional techniques sensitive to crystalline order (DSC, WAXD, and FTIR). |
| 语种 | 英语 |
| WOS记录号 | WOS:000442185700060 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/42411]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Muller, Alejandro J.; Wang, Dujin |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, CAS Res Educ Ctr Excellence Mol Sci, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Genoa, Dept Chem & Ind Chem, Via Dodecaneso 31, I-16146 Genoa, Italy 4.Univ Basque Country UPV EHU, Fac Chem, POLYMAT, Paseo Manuel de Lardizabal 3, Donostia San Sebastian 20018, Spain 5.Univ Basque Country UPV EHU, Fac Chem, Polymer Sci & Technol Dept, Paseo Manuel de Lardizabal 3, Donostia San Sebastian 20018, Spain 6.Ikerbasque, Basque Fdn Sci, Bilbao, Spain |
| 推荐引用方式 GB/T 7714 | Wang, Zefan,Dong, Xia,Cavallo, Dario,et al. Promotion of Self-Nucleation with Latent Form I Nuclei in Polybutene-1 and Its Copolymer[J]. MACROMOLECULES,2018,51(15):6037-6046. |
| APA | Wang, Zefan,Dong, Xia,Cavallo, Dario,Muller, Alejandro J.,&Wang, Dujin.(2018).Promotion of Self-Nucleation with Latent Form I Nuclei in Polybutene-1 and Its Copolymer.MACROMOLECULES,51(15),6037-6046. |
| MLA | Wang, Zefan,et al."Promotion of Self-Nucleation with Latent Form I Nuclei in Polybutene-1 and Its Copolymer".MACROMOLECULES 51.15(2018):6037-6046. |
入库方式： OAI收割
来源：化学研究所
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