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Wang Z, Duan R, Pang X, Wu R, Guo B, Xu J. Critical Size and Formation Mechanism of Secondary Nuclei in Melt-Crystallized Polylactide Stereocomplex Crystals. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Zhiqi Wang
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering, Tsinghua University, 100084Beijing, China
| | - Ranlong Duan
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun130022, China
| | - Xuan Pang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun130022, China
| | - Rongling Wu
- Departments of Public Health Sciences and Statistics, The Pennsylvania State University, Hershey, Pennsylvania17033, United States
| | - Baohua Guo
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering, Tsinghua University, 100084Beijing, China
| | - Jun Xu
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering, Tsinghua University, 100084Beijing, China
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2
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Zhang S, Wang Z, Guo B, Xu J. Secondary nucleation in polymer crystallization: A kinetic view. POLYMER CRYSTALLIZATION 2021. [DOI: 10.1002/pcr2.10173] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Shujing Zhang
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering Tsinghua University Beijing China
| | - Zhiqi Wang
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering Tsinghua University Beijing China
| | - Baohua Guo
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering Tsinghua University Beijing China
| | - Jun Xu
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering Tsinghua University Beijing China
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Zhang S, Guo B, Reiter G, Xu J. Estimation of the Size of Critical Secondary Nuclei of Melt-Grown Poly(l-lactide) Lamellar Crystals. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00113] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Shujing Zhang
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
| | - Baohua Guo
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
| | - Günter Reiter
- Institute of Physics and Freiburg Materials Research Center, Albert-Ludwig-University of Freiburg, 79104 Freiburg, Germany
| | - Jun Xu
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
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Gao Y, Guo B, Xu J. Critical Size of Secondary Nuclei Determined via Nucleation Theorem Reveals Selective Nucleation in Three-Component Co-Crystals. ENTROPY 2019. [PMCID: PMC7514336 DOI: 10.3390/e21111032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The critical size of the secondary nuclei plays an important role in determining the crystal growth rate. In the past, the Nucleation Theorem has been applied to determine the number of molecules in the critical nuclei of a single-component crystal via variation of the crystal growth rate with dilution by the non-crystallizable component. In this work, we extend the method to the three-component co-crystal poly (ethylene oxide)/urea/thiourea inclusion compound. The theoretical crystal growth kinetics were deduced and the dependence of the radial growth rate of the inclusion compound spherulites on the mass fraction of urea in urea/thiourea was measured. The results reveal that the secondary nuclei of the poly (ethylene oxide)/urea/thiourea inclusion compound consist mainly of ethylene oxide repeating units and urea molecules. We propose that only urea molecules and ethylene oxide repeating units are selected to form the secondary nuclei while co-crystallization of the three components happens at the lateral spreading stage. As a result, the composition of the critical secondary nuclei is different from that of the bulk inclusion compound crystals. The work is expected to deepen our understanding of the nucleation of multi-component co-crystals.
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Affiliation(s)
| | | | - Jun Xu
- Correspondence: ; Tel.: +86-10-6278-4740
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Zhang S, Han J, Gao Y, Guo B, Reiter G, Xu J. Determination of the Critical Size of Secondary Nuclei on the Lateral Growth Front of Lamellar Polymer Crystals. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01270] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shujing Zhang
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
| | - Jiarui Han
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
| | - Yang Gao
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
| | - Baohua Guo
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
| | - Günter Reiter
- Institute of Physics and Freiburg Materials Research Center, Albert-Ludwig-University of Freiburg, 79104 Freiburg, Germany
| | - Jun Xu
- Advanced Materials Laboratory of Ministry of Education, Department of Chemical Engineering, Tsinghua University, 100084 Beijing, China
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Xu J, Zhang S, Guo B. Insights from polymer crystallization: Chirality, recognition and competition. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2017.10.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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7
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Lv ZY, Zhang MC, Zhang Y, Guo BH, Xu J. Study on melting and recrystallization of poly(butylene succinate) lamellar crystals via step heating differential scanning calorimetry. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-017-1986-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Simulation of Polymer Crystallization under Isothermal and Temperature Gradient Conditions Using Particle Level Set Method. CRYSTALS 2016. [DOI: 10.3390/cryst6080090] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Machatschek R, Ortmann P, Reiter R, Mecking S, Reiter G. Assembling semiconducting molecules by covalent attachment to a lamellar crystalline polymer substrate. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2016; 7:784-98. [PMID: 27335767 PMCID: PMC4902058 DOI: 10.3762/bjnano.7.70] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 05/13/2016] [Indexed: 06/06/2023]
Abstract
We have investigated the potential of polymers containing precisely spaced side-branches for thin film applications, particularly in the context of organic electronics. Upon crystallization, the side-branches were excluded from the crystalline core of a lamellar crystal. Thus, the surfaces of these crystals were covered by side-branches. By using carboxyl groups as side-branches, which allow for chemical reactions, we could functionalize the crystal with semiconducting molecules. Here, we compare properties of crystals differing in size: small nanocrystals and large single crystals. By assembling nanocrystals on a Langmuir trough, large areas could be covered by monolayers consisting of randomly arranged nanocrystals. Alternatively, we used a method based on local supersaturation to grow large area single crystals of the precisely side-branched polymer from solution. Attachment of the semiconducting molecules to the lamellar surface of large single crystals was possible, however, only after an appropriate annealing procedure. As a function of the duration of the grafting process, the morphology of the resulting layer of semiconducting molecules changed from patchy to compact.
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Affiliation(s)
- Rainhard Machatschek
- Institute of Physics, University of Freiburg, Hermann-Herder-Strasse 3, 79104 Freiburg, Germany
| | - Patrick Ortmann
- Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, Universitätsstrasse 10, 78457 Konstanz, Germany
| | - Renate Reiter
- Institute of Physics, University of Freiburg, Hermann-Herder-Strasse 3, 79104 Freiburg, Germany
| | - Stefan Mecking
- Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, Universitätsstrasse 10, 78457 Konstanz, Germany
| | - Günter Reiter
- Institute of Physics, University of Freiburg, Hermann-Herder-Strasse 3, 79104 Freiburg, Germany
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11
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Xu J, Heck B, Ye HM, Jiang J, Tang YR, Liu J, Guo BH, Reiter R, Zhou DS, Reiter G. Stabilization of Nuclei of Lamellar Polymer Crystals: Insights from a Comparison of the Hoffman–Weeks Line with the Crystallization Line. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02123] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jun Xu
- Advanced
Materials Laboratory of Ministry of Education, Department of Chemical
Engineering, Tsinghua University, Beijing 100084, China
| | - Barbara Heck
- Institute
of Physics and Freiburg Materials Research Center, Albert-Ludwig-University of Freiburg, 79104 Freiburg, Germany
| | - Hai-Mu Ye
- Department
of Materials Science and Engineering, China University of Petroleum, Beijing 102249, China
| | - Jing Jiang
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology, Ministry of Education, State Key Laboratory of Coordination
Chemistry, Nanjing University, Nanjing 210093, China
| | - Yi-Ren Tang
- Advanced
Materials Laboratory of Ministry of Education, Department of Chemical
Engineering, Tsinghua University, Beijing 100084, China
| | - Jin Liu
- Advanced
Materials Laboratory of Ministry of Education, Department of Chemical
Engineering, Tsinghua University, Beijing 100084, China
| | - Bao-Hua Guo
- Advanced
Materials Laboratory of Ministry of Education, Department of Chemical
Engineering, Tsinghua University, Beijing 100084, China
| | - Renate Reiter
- Institute
of Physics and Freiburg Materials Research Center, Albert-Ludwig-University of Freiburg, 79104 Freiburg, Germany
| | - Dong-Shan Zhou
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology, Ministry of Education, State Key Laboratory of Coordination
Chemistry, Nanjing University, Nanjing 210093, China
| | - Günter Reiter
- Institute
of Physics and Freiburg Materials Research Center, Albert-Ludwig-University of Freiburg, 79104 Freiburg, Germany
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