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Chen X, Yao J, Yu J, Mi M, Xu Y, Bai H. Toward Heat-Resistant and Transparent Poly( l-lactide) by Tailoring Crystallization with an Aliphatic Amide as a Nucleating Agent. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaonan Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Ju Yao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Jing Yu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Mingmei Mi
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Yichen Xu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P.R. China
| | - Hongwei Bai
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
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Marroquin-Garcia R, Leone N, Hawke LGD, Romano D, Wilsens CHRM, Rastogi S. Suppression in Melt Viscosity of the Homogeneously Mixed Blends of Polypropylene (iPP–UHMWiPP) in the Presence of an Oxalamide. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ramiro Marroquin-Garcia
- Department of Biobased Materials, Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Maastricht, The Netherlands
| | - Nils Leone
- Department of Biobased Materials, Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Maastricht, The Netherlands
| | - Laurence G. D. Hawke
- Department of Biobased Materials, Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Maastricht, The Netherlands
- Bio-and Soft Matter, Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Croix du Sud 1, B-1348 Louvain-la-Neuve, Belgium
| | - Dario Romano
- Department of Biobased Materials, Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Maastricht, The Netherlands
- Division of Physical Sciences and Engineering, Department of Chemical Sciences, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Carolus H. R. M. Wilsens
- Department of Biobased Materials, Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Maastricht, The Netherlands
- Sabic Technology & Innovation, STC Geleen, Urmonderbaan 22, 6160 AL Geleen, The Netherlands
| | - Sanjay Rastogi
- Department of Biobased Materials, Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD Maastricht, The Netherlands
- Division of Physical Sciences and Engineering, Department of Chemical Sciences, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
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3
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The Application of Organic Phosphate Nucleating Agents in Polypropylene with Different Molecular Weights. CRYSTALS 2021. [DOI: 10.3390/cryst11121543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Two kinds of organic phosphate nucleating agent (NA-11 and NA-21) were used in PP with different molecular weights through the melt extrusion method. The dispersibility of the nucleating agents in PP, and the effect of the nucleating agents on the molecular weight, rheological behavior and crystallization behavior of PP were investigated. SEM and TEM analysis showed that the average radius of the dispersed particles (nucleating agents) was larger in LPP than that in HPP. The good dispersion of NA-21 also created more nucleation embryos for the adsorption of polypropylene molecules than the agglomerated NA-11. The gel permeation chromatography (GPC) analysis showed that the average molecular weight of HPP and LPP both decreased with the addition of a nucleating agent. The rotational rheometer and capillary rheometer analysis showed that the effect of NA-21 on reducing intermolecular entanglement was more significant, whether in HPP or LPP. The addition of NA-21 had less elastic energy storage and better flow stability, and could be processed at a higher speed. Simultaneously, the relaxation time in the blends with LPP was shorter than that with HPP. It was found that the crystallinity and nucleation efficiency of HPP/nucleating agent blends increased remarkably, while there was a barely perceptible increase in LPP/nucleating agent blends.
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Data Mining of Polymer Phase Transitions upon Temperature Changes by Small and Wide-Angle X-ray Scattering Combined with Raman Spectroscopy. Polymers (Basel) 2021; 13:polym13234203. [PMID: 34883710 PMCID: PMC8659756 DOI: 10.3390/polym13234203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/23/2021] [Accepted: 11/26/2021] [Indexed: 11/16/2022] Open
Abstract
The complex physical transformations of polymers upon external thermodynamic changes are related to the molecular length of the polymer and its associated multifaceted energetic balance. The understanding of subtle transitions or multistep phase transformation requires real-time phenomenological studies using a multi-technique approach that covers several length-scales and chemical states. A combination of X-ray scattering techniques with Raman spectroscopy and Differential Scanning Calorimetry was conducted to correlate the structural changes from the conformational chain to the polymer crystal and mesoscale organization. Current research applications and the experimental combination of Raman spectroscopy with simultaneous SAXS/WAXS measurements coupled to a DSC is discussed. In particular, we show that in order to obtain the maximum benefit from simultaneously obtained high-quality data sets from different techniques, one should look beyond traditional analysis techniques and instead apply multivariate analysis. Data mining strategies can be applied to develop methods to control polymer processing in an industrial context. Crystallization studies of a PVDF blend with a fluoroelastomer, known to feature complex phase transitions, were used to validate the combined approach and further analyzed by MVA.
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Effect of a novel bio-based β-nucleating agent on the properties of isotactic polypropylene. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02826-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Reexamination of self-assembly of nucleator and its influence on the crystallization of polypropylene. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Kong XX, Chen WD, Cui FC, Li YQ. Conformational and Dynamical Evolution of Block Copolymers in Shear Flow. CHINESE JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1007/s10118-021-2523-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Roy M, Zhelezniakov M, de Kort GW, Hawke LG, Leoné N, Rastogi S, Wilsens CH. On the nucleation of polylactide by melt-soluble oxalamide based organic compounds. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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Effect of chemical structure of hydrazide compounds on nucleation effect in isotactic polypropylene. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1970-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Hawke LGD, Romano D, Rastogi S. Nonequilibrium Melt State of Ultra-High-Molecular-Weight Polyethylene: A Theoretical Approach on the Equilibrium Process. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01152] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Laurence G. D. Hawke
- Aachen-Maastricht Institute of BioBased Materials (AMIBM), Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands
| | - Dario Romano
- Aachen-Maastricht Institute of BioBased Materials (AMIBM), Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands
| | - Sanjay Rastogi
- Aachen-Maastricht Institute of BioBased Materials (AMIBM), Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands
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11
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Tayebi SS, Jahani Y, Arabi H. Trimethylolpropane trimethacrylate functionalized polypropylene/polyhexene-1 blend with enhanced melt strength. POLYM-PLAST TECH MAT 2019. [DOI: 10.1080/25740881.2019.1669653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Seyed Saeid Tayebi
- Faculty of Processing, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Yousef Jahani
- Faculty of Processing, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Hassan Arabi
- Faculty of Processing, Iran Polymer and Petrochemical Institute, Tehran, Iran
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12
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Wilsens CHRM, Hawke LGD, de Kort GW, Saidi S, Roy M, Leoné N, Hermida-Merino D, Peters GWM, Rastogi S. Effect of Thermal History and Shear on the Viscoelastic Response of iPP Containing an Oxalamide-Based Organic Compound. Macromolecules 2019; 52:2789-2802. [PMID: 30983633 PMCID: PMC6459004 DOI: 10.1021/acs.macromol.8b02612] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 02/18/2019] [Indexed: 11/30/2022]
Abstract
![]()
We
report on the role of temperature and shear on the melt behavior
of iPP in the presence of the organic compound N1,N1′-(propane-1,3-diyl)bis(N2-hexyloxalamide) (OXA3,6). It is demonstrated
that OXA3,6 facilitates a viscosity suppression when
it resides in the molten state. The viscosity suppression is attributed
to the interaction of iPP chains/subchains with molten OXA3,6 nanoclusters. The exact molecular mechanism has not
been identified; nevertheless, a tentative explanation is proposed.
The observed viscosity suppression appears similar to that encountered
in polymer melts filled with solid nanoparticles, with the difference
that the OXA3,6 compound reported in this study facilitates
the viscosity suppression in the molten state. Upon cooling, as crystal
growth of OXA3,6 progresses, the decrease in viscosity
is suppressed. Retrospectively, segmental absorption of iPP chains on the surface of micrometer-sized OXA3,6 crystallites
favors the formation of dangling arms, yielding OXA3,6 crystallites decorated with partially absorbed iPP chains. In other words, the resulting OXA3,6 particle
morphology resembles that of a hairy particle or a starlike polymer
chain. Such hairy particles effectively facilitate a viscosity enhancement,
similar to branched polymer chains. This hypothesis and its implications
for the shear behavior of iPP are discussed and supported
using plate–plate rheometry and slit-flow experiments combined
with small-angle X-ray scattering analysis.
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Affiliation(s)
- Carolus H R M Wilsens
- Aachen-Maastricht Institute of BioBased Materials (AMIBM), Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands
| | - Laurence G D Hawke
- Aachen-Maastricht Institute of BioBased Materials (AMIBM), Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands
| | - Gijs W de Kort
- Aachen-Maastricht Institute of BioBased Materials (AMIBM), Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands
| | - Sarah Saidi
- LMOPS, EA 4423, Université de Lorraine, CentraleSupelec Metz, 2 rue Edouard Belin, F-57070 Metz, France.,Netherlands Organisation for Scientific Research (NWO), DUBBLE@ESRF BP CS40220, 38043 Grenoble, France
| | - Manta Roy
- Aachen-Maastricht Institute of BioBased Materials (AMIBM), Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands
| | - Nils Leoné
- Aachen-Maastricht Institute of BioBased Materials (AMIBM), Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands
| | - Daniel Hermida-Merino
- Netherlands Organisation for Scientific Research (NWO), DUBBLE@ESRF BP CS40220, 38043 Grenoble, France
| | - Gerrit W M Peters
- Department of Mechanical Engineering, Materials Technology Institute, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Sanjay Rastogi
- Aachen-Maastricht Institute of BioBased Materials (AMIBM), Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands
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