1
|
Fu P, Huo J, Li J, De Rosa C, Jiang S. Form II to form I transition in solution-crystallized isotactic polybutene-1. SOFT MATTER 2024; 20:3191-3202. [PMID: 38529557 DOI: 10.1039/d4sm00152d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Different polymer chains in a solution or melt have different conformations with corresponding entropy at each moment, which would be confined after crystallization. Equilibrium concept-based conformation or conformational entropy depends on chain dynamics, which is related to the effect of energy on conformational changes in polymer chains. Herein, an isotactic polybutene-1 (iPB-1) crystal was crystallized from solution by adding a precipitant at various temperatures. The solution-crystallized iPB-1 crystal was heated to 100 °C to obtain form II at different heat rates and the transition of form II was characterized. It was found that the form II to form I transition was not only related to the precipitation temperature but also to the heating rate of the solution-crystallized iPB-1. Thus, both precipitation temperature and heating rate determine the formation temperature of form II, i.e., form II that crystallized at lower temperature would transform faster. The results indicate that the conformation or conformational entropy of the amorphous region in iPB-1 is important to understand crystal transition.
Collapse
Affiliation(s)
- Peng Fu
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China.
| | - Jiaxin Huo
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China.
| | - Jingqing Li
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China.
| | - Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte Sant'Angelo, Via Cintia, 80126 Napoli, Italy
| | - Shichun Jiang
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China.
| |
Collapse
|
2
|
Liu J, Li J, Liu B, Hamley IW, Jiang S. Mpemba effect in crystallization of polybutene-1. SOFT MATTER 2023; 19:3337-3347. [PMID: 37096363 DOI: 10.1039/d3sm00309d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The Mpemba effect and its inverse can be understood as a result of nonequilibrium thermodynamics. In polymers, changes of state are generally non-equilibrium processes. However, the Mpemba effect has been rarely reported in the crystallization of polymers. In the melt, polybutene-1 (PB-1) has the lowest critical cooling rate in polyolefins and tends to maintain its original structure and properties with thermal history. A nascent PB-1 sample was prepared by using metallocene catalysis at low temperature, and the crystallization behavior and crystalline structure of the PB-1 were characterized by DSC and WAXS. Experimentally, a clear Mpemba effect is observed not only in the crystallization of the nascent PB-1 melt in form II but also in form I obtained from the nascent PB-1 at low melting temperature. It is proposed that this is due to the differences in the chain conformational entropy in the lattice which influence conformational relaxation times. The entropy and the relaxation time can be predicted using the Adam-Gibbs equations, whereas non-equilibrium thermodynamics is required to describe the crystallization with the Mpemba effect.
Collapse
Affiliation(s)
- Jinghua Liu
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China.
| | - Jingqing Li
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China.
| | - Binyuan Liu
- Hebei Key Laboratory of Functional Polymer Materials, School of Chemical Engineering and Science, Hebei University of Technology, Tianjin 300130, China
| | - Ian W Hamley
- School of Chemistry, Pharmacy and Food Biosciences, University of Reading, Whiteknights, Reading RG6 6AD, UK
| | - Shichun Jiang
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China.
| |
Collapse
|
3
|
Glassy structure affected cold-crystallization behavior and structure of poly(lactic acid). JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03077-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
4
|
Shear-induced Precursors of Fibrillar Crystals of Poly(butene-1): A Rheological Study. CHINESE JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1007/s10118-022-2705-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
5
|
Li J, Bai R, Jiang S. Effect of an additive TAB-1 on crystallization behaviors and tensile properties of iPB-1. CrystEngComm 2022. [DOI: 10.1039/d1ce01612a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The additive TAB-1, able to accelerate II–I transition of iPB-1, can enhance its melt crystallization without negative effects on the tensile properties, revealing a new strategy to improve the performances of the products.
Collapse
Affiliation(s)
- Jingqing Li
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Ruo Bai
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Shichun Jiang
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| |
Collapse
|
6
|
Cui X, Huo J, Lv T, Hu C, Li H, Liu B, Jiang S. Chain dimension and crystallization temperature affect the II– I transition of isotactic polybutene-1. CrystEngComm 2022. [DOI: 10.1039/d2ce00765g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The molecular weight dependence of the II–I phase transformation shows significant differences between isothermally and non-isothermally crystallized iPB-1.
Collapse
Affiliation(s)
- Xiaopeng Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- Hebei Key Laboratory of Functional Polymer Materials, School of Chemical Engineering and Science, Hebei University of Technology, Tianjin 300130, China
| | - Jiaxin Huo
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Tongxin Lv
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Cunliang Hu
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Hongfei Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Binyuan Liu
- Hebei Key Laboratory of Functional Polymer Materials, School of Chemical Engineering and Science, Hebei University of Technology, Tianjin 300130, China
| | - Shichun Jiang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| |
Collapse
|
7
|
Wen H, Li H, Qiao P, Chen C, Jiang S. An
FTIR
and X‐ray diffraction study of the crystal phase transition in isotactic polybutene‐1. POLYMER CRYSTALLIZATION 2021. [DOI: 10.1002/pcr2.10200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Huiying Wen
- College of Chemistry, Chemical Engineering and Resource Utilization Northeast Forestry University Harbin China
| | - Hongshu Li
- College of Chemistry, Chemical Engineering and Resource Utilization Northeast Forestry University Harbin China
| | - Pengfei Qiao
- College of Chemistry, Chemical Engineering and Resource Utilization Northeast Forestry University Harbin China
| | - Chunxia Chen
- College of Chemistry, Chemical Engineering and Resource Utilization Northeast Forestry University Harbin China
| | - Shichun Jiang
- School of Materials Science and Engineering Tianjin University Tianjin China
| |
Collapse
|
8
|
|
9
|
|
10
|
Bai R, Li J, Huang D, Jiang S. A new perspective to enhance the II–I transition of polybutene-1. CrystEngComm 2020. [DOI: 10.1039/c9ce02010a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The bottleneck for the application and potential utilization of polybutenene-1 (PB-1) with excellent physical and mechanical properties is its inevitable phase transition.
Collapse
Affiliation(s)
- Ruo Bai
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Jingqing Li
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Dinghai Huang
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Shichun Jiang
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- P. R. China
| |
Collapse
|