1
|
Yu H, Dong JY. Dramatically Accelerating II-I Crystal Phase Transition of Polybutene‑1 by In Situ Incorporation of H-Shape Long-Chain-Branching Structures. Macromol Rapid Commun 2024; 45:e2400195. [PMID: 38713145 DOI: 10.1002/marc.202400195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/20/2024] [Indexed: 05/08/2024]
Abstract
This communication reports an effective strategy helping address the long-troubling melt processing issue of isotactic polybutene-1 (i-PB) caused by its extremely slow II-I crystal phase transition. The solution lies in a facile synthesis of i-PB containing H-shape long-chain-branching structures (LCB-i-PB) by applying a so-called ω-alkenylmethyldichlorosilane copolymerization-hydrolysis (ACH) chemistry to butene-1 polymerization with Ziegler-Natta or metallocene catalysts. It is evident that the H-shape LCB structures effectively enhance chain entanglements of i-PB and induce an over-the-board acceleration of the overall melt crystallization process including nucleation, form II crystallization, and form II-form I phase transition. As i-PB usually requires up to a week to reach equilibrium of the II-I phase transition, it is found that with LCB-i-PB such a transition is almost finished within as short as 24 h to even higher degrees.
Collapse
Affiliation(s)
- Huiping Yu
- CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jin-Yong Dong
- CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| |
Collapse
|
2
|
Shi Y, Li J, Li H, Zhang B, Christiansen JDC, Yu D, Jiang S. Melt memory in random ethylene-1-alkene copolymers. SOFT MATTER 2024; 20:4270-4281. [PMID: 38757237 DOI: 10.1039/d4sm00225c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Chain flexibility or stiffness based polymer conformation plays a crucial role in affecting the dynamics and kinetics of polymers, which is related to the hierarchical architecture of chains. A series of random copolymers of ethylene and 1-alkenes including 1-hexene, 1-octene, and 1-dodecene were synthesized with metallocene catalysts. The crystallization behavior and memory effect in random ethylene-1-alkene copolymers with different side groups were investigated via differential scanning calorimetry (DSC) and wide-angle X-ray scattering (WAXS). Rheological tests were performed for understanding their dynamical behavior. The results show that the melting peak and the viscosity decrease but the orthorhombic crystal dimensions increase with co-unit contents increasing in the copolymers. It was found that the scaling relationship between the zero shear viscosity (η0) and molecular weight (Mn) of the copolymers containing ethylene-1-hexene and ethylene-1-octene is 3.6, which is higher than the classical scaling value of 3.4. The memory of crystals in the melt is enhanced with the increase of 1-alkene contents but is independent of the types of 1-alkenes. The enhanced melt memory effect in the copolymers was proposed due to the effect of the 1-alkene based side groups on the dynamics of polymer chains. The present work would be helpful to understand the chain stiffness based polymer dynamics and processing of polyolefins and copolymers prepared with the metallocene catalyst.
Collapse
Affiliation(s)
- Yunxiang Shi
- 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.
| | - Hongfei Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
| | - Bin Zhang
- School of Materials Science & Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | | | - Donghong Yu
- Department of Chemistry and Bioscience, Aalborg University, DK-9220, Aalborg East, Denmark.
| | - Shichun Jiang
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China.
| |
Collapse
|
3
|
Liao Y, Pérez-Camargo RA, Sardon H, Martínez de Ilarduya A, Hu W, Liu G, Wang D, Müller AJ. Challenging Isodimorphism Concepts: Formation of Three Crystalline Phases in Poly(hexamethylene- ran-octamethylene carbonate) Copolymers. Macromolecules 2023; 56:8199-8213. [PMID: 37900097 PMCID: PMC10601535 DOI: 10.1021/acs.macromol.3c01265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/01/2023] [Indexed: 10/31/2023]
Abstract
In this work, poly(hexamethylene-ran-octamethylene carbonate) copolycarbonates were synthesized by melt polycondensation in a wide range of compositions. The copolymers displayed some of the characteristic isodimorphic thermal behavior, such as crystallization for all the compositions and a pseudoeutectic behavior of the melting temperature (Tm) versus composition. The pseudoeutectic point was located at 33 mol % poly(octamethylene carbonate) (POC) content (i.e., corresponding to the PH67O33C copolymer). Surprisingly, the crystallinities (Xc) for a wide range of copolymer compositions were higher than those of the parent components, a phenomenon that has not been observed before in isodimorphic random copolymers. The structural characterization, performed by wide-angle X-ray scattering (WAXS) and small-angle X-ray scattering experiments, revealed unexpected results depending on composition. On the one hand, the poly(hexamethylene carbonate) (PHC)- and POC-rich copolymers crystallize in PHC- and POC-type crystals, as expected. Moreover, upon cooling and heating, in situ WAXS experiments evidenced that these materials undergo reversible solid-solid transitions [δ-α (PHC) and δ-α-β (POC)] present in the parent components but at lower temperatures. On the other hand, a novel behavior was found for copolymers with 33-73 mol % POC (including the pseudoeutectic point), which are those with higher crystallinities than the parent components. For these copolymers, a new crystalline phase that is different from that of both homopolymers was observed. The in situ WAXS results for these copolymers confirmed that this novel phase is stable upon cooling and heating and does not show any crystallographic feature of the parent components or their solid-solid transitions. FTIR experiments confirmed this behavior, revealing that the new phase adopts a polyethylene-like chain conformation that differs from the trans-dominant ones exhibited by the parent components. This finding challenges the established concepts of isodimorphism and questions whether a combination of crystallization modes (isodimorphism and isomorphism) is possible in the same family of random copolymers just by changing the composition.
Collapse
Affiliation(s)
- Yilong Liao
- POLYMAT
and Department of Polymers and Advanced Materials: Physics, Chemistry,
and Technology, Faculty of Chemistry, University
of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, Donostia-San Sebastián 20018, Spain
| | - Ricardo A. Pérez-Camargo
- POLYMAT
and Department of Polymers and Advanced Materials: Physics, Chemistry,
and Technology, Faculty of Chemistry, University
of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, Donostia-San Sebastián 20018, Spain
| | - Haritz Sardon
- POLYMAT
and Department of Polymers and Advanced Materials: Physics, Chemistry,
and Technology, Faculty of Chemistry, University
of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, Donostia-San Sebastián 20018, Spain
| | - Antxon Martínez de Ilarduya
- Department
of Chemical Engineering, Polytechnic University
of Catalonia ETSEIB-UPC, Diagonal 647, Barcelona 08028, Spain
| | - Wenxian Hu
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University
of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Guoming Liu
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University
of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Dujin Wang
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University
of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Alejandro J. Müller
- POLYMAT
and Department of Polymers and Advanced Materials: Physics, Chemistry,
and Technology, Faculty of Chemistry, University
of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, Donostia-San Sebastián 20018, Spain
- Ikerbasque,
Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Spain
| |
Collapse
|
4
|
Influence of self-nucleation on phase transition in poly(1-butene). POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
|
5
|
Ni L, Sun C, Xu S, Xiang W, Pan Y, Wang B, Zheng Y, Yu C, Pan P. Thermally Induced Phase Transition of Polybutene-1 from Form I′ to Form II through Melt Recrystallization: Crucial Role of Chain Entanglement. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Affiliation(s)
- Lingling Ni
- Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Chenxuan Sun
- Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Shanshan Xu
- Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Wangkai Xiang
- Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Yongwei Pan
- Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
- Institute of Zhejiang University-Quzhou, 99 Zheda Road, Quzhou 324000, China
| | - Bao Wang
- Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
- Institute of Zhejiang University-Quzhou, 99 Zheda Road, Quzhou 324000, China
| | - Ying Zheng
- Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
- Institute of Zhejiang University-Quzhou, 99 Zheda Road, Quzhou 324000, China
| | - Chengtao Yu
- Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
- Institute of Zhejiang University-Quzhou, 99 Zheda Road, Quzhou 324000, China
| | - Pengju Pan
- Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
- Institute of Zhejiang University-Quzhou, 99 Zheda Road, Quzhou 324000, China
| |
Collapse
|
6
|
Yuan Y, Li W, Qv C, Ma Z. Crystallization and phase transition of butene/propylene copolymers. CrystEngComm 2023. [DOI: 10.1039/d3ce00008g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
The introduction of propylene co-units into butene/propylene random copolymers can accelerate the II–I phase transition and even induce the direct formation of trigonal form I′ from an amorphous melt.
Collapse
Affiliation(s)
- Yaru Yuan
- Tianjin Key Laboratory of Composite and Functional Materials, and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Wei Li
- Tianjin Key Laboratory of Composite and Functional Materials, and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Chunjing Qv
- Tianjin Key Laboratory of Composite and Functional Materials, and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Zhe Ma
- Tianjin Key Laboratory of Composite and Functional Materials, and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| |
Collapse
|
7
|
Liu X, Cui WZ, Yu W. Interfacial Chain Entanglements Induced Melt Memory Effect in Poly(ε-caprolactone)/Silica Nanocomposites. CHINESE JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1007/s10118-022-2814-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
8
|
Luo W, Yu Y, Wang J, Hu W. Nascent structure memory erased in polymer stretching. J Chem Phys 2022; 156:144904. [DOI: 10.1063/5.0083952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Stretching of semicrystalline polymer materials is fundamentally important in their mechanical performance and industrial processing. By means of dynamic Monte Carlo simulations, we compared the parallel stretching processes between the initially bulk amorphous and semicrystalline polymers at various temperatures. In the early stage of stretching, semicrystalline polymers perform local and global melting-recrystallization behaviors at low and high temperatures, while the memory effects occur upon global melting-recrystallization at middle temperatures. However, the final crystallinities, crystalline bond orientations, chain-folding probabilities, residual stresses, and crystallite morphologies at high enough strains appear as the same at each temperature, irrelevant to the initially amorphous and semicrystalline polymers, indicating that the common post-growth melting-reorganization processes determine the final products. In addition, both final products harvest the highest crystallinities in the middle temperature region because the postgrowth stage yields the vast nuclei followed with less extent of crystal growth in the low temperature region and few nuclei followed with large extent of crystal growth in the high temperature region. Our observations imply that a large enough strain can effectively remove the thermal history of polymers, similar to the thermal treatment at a high enough temperature; therefore, the fracture strength of semicrystalline polymers depends upon their final structures in stretching, not related to their nascent semicrystalline structures.
Collapse
Affiliation(s)
- Wen Luo
- School of Chemistry and Chemical Engineering, State Key Lab of Coordinate Chemistry, Nanjing University, Nanjing 210023, China
| | - Yihuan Yu
- School of Chemistry and Chemical Engineering, State Key Lab of Coordinate Chemistry, Nanjing University, Nanjing 210023, China
| | - Jiping Wang
- School of Chemistry and Chemical Engineering, State Key Lab of Coordinate Chemistry, Nanjing University, Nanjing 210023, China
| | - Wenbing Hu
- School of Chemistry and Chemical Engineering, State Key Lab of Coordinate Chemistry, Nanjing University, Nanjing 210023, China
| |
Collapse
|
9
|
Crystallization Behavior of Isotactic Polybutene Blended with Polyethylene. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082448. [PMID: 35458646 PMCID: PMC9028261 DOI: 10.3390/molecules27082448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 04/01/2022] [Accepted: 04/05/2022] [Indexed: 11/17/2022]
Abstract
In this work, the melt crystallization behavior and the solid phase transition of isotactic polybutene (PB) were studied in the polybutene/high-density polyethylene (PB/PE) blends covering the whole composition range. For the dynamic cooling crystallization, PE exhibits almost the same crystallization temperature in all blends, whereas PB exhibits a distinct non-monotonic dependence on the composition ratio. Combining the ex situ X-ray diffraction and in situ Fourier transform infrared spectroscope, it was demonstrated that during cooling at 10 °C/min, the presence of at least 70 wt% PE can induce the formation of form I' directly from the amorphous melt. The detailed relations of polymorphism with temperature were systematically investigated for the PB/PE blends. Different from the formation of the sole tetragonal phase with ≤50 wt% PE, the trigonal form I' could crystallize directly from amorphous melt with ≥60 wt% PE, which can be further enhanced by elevating the temperature of isothermal crystallization. Interestingly, the critical lowest temperature of obtaining pure form I' was 85 °C with 70 wt% PE and decreased to 80 °C as the PE fraction was increased to 80 wt%. On the other hand, the spontaneous phase transition from the kinetically favored form II into the thermodynamically stable form I was also explored with X-ray diffraction methods. It was found that at the room temperature, phase transition kinetics can be significantly accelerated by blending at least 70 wt% PE.
Collapse
|
10
|
Lou Y, Li W, Qv C, Zhao R, Ma Z. Strong memory effect in higher α-olefin homopolymers with crystalline side chains. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
11
|
Liu L, Lou Y, Qv C, Ma Z, Li Y. Crystallization and Phase Transition of
1‐Butene
Copolymers with Distinct Cyclic Co‐units. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Long Liu
- Tianjin Key Laboratory of Composite and Functional Materials, and School of Materials Science and Engineering Tianjin University Tianjin 300072 P. R. China
| | - Yahui Lou
- Tianjin Key Laboratory of Composite and Functional Materials, and School of Materials Science and Engineering Tianjin University Tianjin 300072 P. R. China
| | - Chunjing Qv
- Tianjin Key Laboratory of Composite and Functional Materials, and School of Materials Science and Engineering Tianjin University Tianjin 300072 P. R. China
| | - Zhe Ma
- Tianjin Key Laboratory of Composite and Functional Materials, and School of Materials Science and Engineering Tianjin University Tianjin 300072 P. R. China
| | - Yuesheng Li
- Tianjin Key Laboratory of Composite and Functional Materials, and School of Materials Science and Engineering Tianjin University Tianjin 300072 P. R. China
| |
Collapse
|
12
|
Kou J, Duan C, Chen Y, Jia Y, Lu S, Wu L, Li X, Wu G, Liu C, Li H, Chen Z. Properties study of composites for polybutene‐1 and modified graphene oxide. J Appl Polym Sci 2022. [DOI: 10.1002/app.52270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jixiong Kou
- State Key Laboratory of Gansu Advanced Non‐ferrous Metal Materials Lanzhou University of Technology Lanzhou China
- School of Material Science and Engineering, Lanzhou University of Technology Lanzhou China
| | - Chenglong Duan
- State Key Laboratory of Gansu Advanced Non‐ferrous Metal Materials Lanzhou University of Technology Lanzhou China
- School of Material Science and Engineering, Lanzhou University of Technology Lanzhou China
| | - Yalan Chen
- School of Foreign Languages, Lanzhou University of Technology Lanzhou China
| | - Yuanlong Jia
- State Key Laboratory of Gansu Advanced Non‐ferrous Metal Materials Lanzhou University of Technology Lanzhou China
- School of Material Science and Engineering, Lanzhou University of Technology Lanzhou China
| | - Siyuan Lu
- State Key Laboratory of Gansu Advanced Non‐ferrous Metal Materials Lanzhou University of Technology Lanzhou China
- School of Material Science and Engineering, Lanzhou University of Technology Lanzhou China
| | - Lei Wu
- State Key Laboratory of Gansu Advanced Non‐ferrous Metal Materials Lanzhou University of Technology Lanzhou China
- School of Material Science and Engineering, Lanzhou University of Technology Lanzhou China
| | - Xingzhen Li
- State Key Laboratory of Gansu Advanced Non‐ferrous Metal Materials Lanzhou University of Technology Lanzhou China
- School of Material Science and Engineering, Lanzhou University of Technology Lanzhou China
| | - Gang Wu
- State Key Laboratory of Gansu Advanced Non‐ferrous Metal Materials Lanzhou University of Technology Lanzhou China
- School of Material Science and Engineering, Lanzhou University of Technology Lanzhou China
| | - Chunli Liu
- State Key Laboratory of Gansu Advanced Non‐ferrous Metal Materials Lanzhou University of Technology Lanzhou China
- School of Material Science and Engineering, Lanzhou University of Technology Lanzhou China
| | - Hui Li
- State Key Laboratory of Gansu Advanced Non‐ferrous Metal Materials Lanzhou University of Technology Lanzhou China
- School of Material Science and Engineering, Lanzhou University of Technology Lanzhou China
| | - Zhenbin Chen
- State Key Laboratory of Gansu Advanced Non‐ferrous Metal Materials Lanzhou University of Technology Lanzhou China
- School of Material Science and Engineering, Lanzhou University of Technology Lanzhou China
| |
Collapse
|
13
|
Qv CJ, Li W, Zhao RJ, Ma Z. Memory Effect of Crystallization in 1-Butene/α-olefin Copolymers. CHINESE JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1007/s10118-022-2660-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
14
|
Lou Y, Liu L, Li W, Zhao R, Ma Z. Regulating Two Distinct Formation Pathways of the Thermodynamically Stable Phase to Tune Crystal Polymorphism: The Case of Butene/Pentene Copolymers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01706] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yahui Lou
- Tianjin Key Laboratory of Composite and Functional Materials and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P.R. China
| | - Long Liu
- Tianjin Key Laboratory of Composite and Functional Materials and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P.R. China
| | - Wei Li
- Tianjin Key Laboratory of Composite and Functional Materials and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P.R. China
| | - Ruijun Zhao
- Tianjin Key Laboratory of Composite and Functional Materials and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P.R. China
| | - Zhe Ma
- Tianjin Key Laboratory of Composite and Functional Materials and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P.R. China
| |
Collapse
|
15
|
Li T, Liu L, Lou Y, Li W, Ma G, Ma Z. Phase transition of polybutene-1 ionomers: Influences of ion content and branch length. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123861] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
16
|
Wang W, Fenni SE, Ma Z, Righetti MC, Cangialosi D, Di Lorenzo ML, Cavallo D. Glass transition and aging of the rigid amorphous fraction in polymorphic poly(butene-1). POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123830] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
17
|
Dong J, Wang B. Homo- and copolymerization of norbornene using tridentate IzQO palladium catalysts with dimethylaminoethyl as a side arm. Polym Chem 2021. [DOI: 10.1039/d1py00699a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rigid IzQO–Pd catalysts were synthesized by Rh(iii)-catalyzed C–H/alkyne annulation and applied for the homo- and copolymerizations of norbornene with polar vinyl monomers.
Collapse
Affiliation(s)
- Jie Dong
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
| | - Baiquan Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, PR China
| |
Collapse
|
18
|
Qiao Y, Liu J, Zhao J, Xu M, Qi Q, Chen Z, Men Y, Park CB, Lee PC. Promotion of Form I′ in the Polymorph Selection of Polybutene-1 during Crystallization under High Gas/Supercritical Fluid Pressure via Enhancing Chain Mobility. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01986] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yongna Qiao
- Multifunctional Composites Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto M5S 3G8, Canada
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto M5S 3G8, Canada
| | - Jing Liu
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto M5S 3G8, Canada
| | - Jinchuan Zhao
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto M5S 3G8, Canada
| | - Menglong Xu
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto M5S 3G8, Canada
| | - Qing Qi
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto M5S 3G8, Canada
| | - Zuolong Chen
- Multifunctional Composites Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto M5S 3G8, Canada
| | - Yongfeng Men
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, P. R. China
| | - Chul B. Park
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto M5S 3G8, Canada
| | - Patrick C. Lee
- Multifunctional Composites Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto M5S 3G8, Canada
| |
Collapse
|
19
|
Liu L, Chu Z, Liao Y, Ma Z, Li Y. Flow-Induced Crystallization in Butene-1/1,5-Hexadiene Copolymers: Mutual Effects of Molecular Factor and Flow Stimuli. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01318] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Long Liu
- Tianjin Key Laboratory of Composite and Functional Materials, and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Zhaozhe Chu
- Tianjin Key Laboratory of Composite and Functional Materials, and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Yilong Liao
- Tianjin Key Laboratory of Composite and Functional Materials, and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Zhe Ma
- Tianjin Key Laboratory of Composite and Functional Materials, and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Yuesheng Li
- Tianjin Key Laboratory of Composite and Functional Materials, and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China
| |
Collapse
|
20
|
Affiliation(s)
- Xiang Liu
- Advanced Rheology Institute, Department of Polymer Science and Engineering, Frontiers Science Center for Transformative Molecules, and State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Wei Yu
- Advanced Rheology Institute, Department of Polymer Science and Engineering, Frontiers Science Center for Transformative Molecules, and State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| |
Collapse
|
21
|
Dong B, Yang X, Ji Y, Su F, Shao C, Liu C. Polymorph selection during melt crystallization of the isotactic polybutene-1 homopolymer depending on the melt state and crystallization pressure. SOFT MATTER 2020; 16:9074-9082. [PMID: 32909580 DOI: 10.1039/d0sm01231a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This work investigated the crystalline forms obtained from melt crystallization in the isotactic polybutene-1 (iPB-1) homopolymer via manipulation of the temperature at which samples were melted (Tmelt) and crystallization pressure (Pcry). Unlike the results under atmospheric conditions where the molten sample crystallized into the pure form II and the crystallization temperature and kinetics were affected obviously by Tmelt, the melted sample crystallized into forms II or I' under high pressure, depending on Tmelt and Pcry. The content of form I' decreases with increasing Tmelt or decreasing Pcry. Meanwhile, the critical pressure for the formation of pure form I' increases with increasing Tmelt. The formation of form I' is attributed to the memory effect of the melt which preserved some ordered sequence of crystal and the high pressure (Pcry) which suppressed the nucleation and growth of the kinetically favored form II, which results in the formation of form I'. In addition, the melt crystallized form II transforms to form I under high pressure conditions; thus forms I, I' and II are observed. The relative contents of the three crystalline forms on samples for different Tmelt and Pcry are obtained in this work. The result shows that the crystalline forms in melt crystallization of iPB-1 can be customized by regulating the melt state and crystallization conditions.
Collapse
Affiliation(s)
- Beibei Dong
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China.
| | - Xiaokang Yang
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China.
| | - Youxin Ji
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China.
| | - Fengmei Su
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China.
| | - Chunguang Shao
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China.
| | - Chuntai Liu
- National Engineering Research Center for Advanced Polymer Processing Technology, The Key Laboratory of Material Processing and Mold of Ministry of Education, College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China.
| |
Collapse
|