1
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Zhu Z, Bian Y, Zhang X, Zeng R, Yang B. Study of Crystallinity and Conformation of Poly(lactic acid) by Terahertz Spectroscopy. Anal Chem 2022; 94:11104-11111. [PMID: 35881498 DOI: 10.1021/acs.analchem.2c02652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
During crystallization, conformational changes are often accompanied by the formation of interactions. Terahertz (THz) spectroscopy exhibits strong responses to the crystalline poly(lactic acid) (PLA). Therefore, we estimate the relative crystallinity and investigate the effect of conformational transition on the vibration of PLA by THz spectroscopy. By comparing with the results of X-ray diffraction (XRD) and differential scanning calorimetry (DSC), the validity of THz spectroscopy to calculate crystallinity is verified. Furthermore, the peak intensity of PLA at 2.01 THz increases with crystallinity. Combined with Fourier transform infrared spectroscopy (FTIR), the vibrational intensity of PLA at 2.01 THz is highly correlated with the contribution of gt conformation, showing a linear relationship. In addition, the vibrational peak of PLA also reflects the interchain interactions. We believe that the increase in peak intensity with increasing crystallinity originates from the effect of the dipole-dipole interactions between the carbonyl groups. Our study demonstrates the ability of THz spectroscopy to estimate the crystallinity of PLA, and the peak at 2.01 THz shows conformational and interaction sensitivities.
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Affiliation(s)
- Zhenqi Zhu
- College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Yujing Bian
- College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Xun Zhang
- College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Ruonan Zeng
- College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
| | - Bin Yang
- College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China.,Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China
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2
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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]
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3
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Xu S, Sun C, Yuan W, Zhou J, Xu W, Zheng Y, Yu C, Pan P. Evolution of thermal behavior, mechanical properties, and microstructure in stereocomplexable poly(lactic acid) during physical ageing. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124840] [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]
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4
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Huang S, Zhang Y, Wang C, Xia Q, Saif Ur Rahman M, Chen H, Han C, Liu Y, Xu S. Mechanisms Affecting Physical Aging and Swelling by Blending an Amphiphilic Component. Int J Mol Sci 2022; 23:ijms23042185. [PMID: 35216296 PMCID: PMC8880760 DOI: 10.3390/ijms23042185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/11/2022] [Accepted: 02/11/2022] [Indexed: 11/23/2022] Open
Abstract
Polymer blending is a promising method to overcome stability obstacles induced by physical aging and swelling of implant scaffolds prepared from amorphous polymers in biomedical application, since it will not bring potential toxicity compared with chemical modification. However, the mechanism of polymer blending still remains unclearly explained in existing studies that fail to provide theoretical references in material R&D processes for stability improvement of the scaffold during ethylene oxide (EtO) sterilization, long-term storage, and clinical application. In this study, amphiphilic poly(ethylene glycol)-co-poly(lactic acid) (PELA) was blended with amorphous poly(lactic-co-glycolic acid) (PLGA) because of its good miscibility so as to adjust the glass transition temperature (Tg) and hydrophilicity of electrospun PLGA membranes. By characterizing the morphological stability and mechanical performance, the chain movement and the glass transition behavior of the polymer during the physical aging and swelling process were studied. This study revealed the modification mechanism of polymer blending at the molecular chain level, which will contribute to stability improvement and performance adjustment of implant scaffolds in biomedical application.
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Affiliation(s)
- Shifen Huang
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; (S.H.); (M.S.U.R.); (H.C.); (C.H.)
| | - Yiming Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, China;
| | - Chenhong Wang
- State Key Laboratory of Polymer Physics and Chemistry, Joint Laboratory of Polymer Science and Materials, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
- Correspondence: (C.W.); (Y.L.); (S.X.); Tel.: +86-10-8254-3785 (Y.L.); +86-755-2653-1165 (S.X.)
| | - Qinghua Xia
- State Key Laboratory of Polymer Physics and Chemistry, Joint Laboratory of Polymer Science and Materials, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
| | - Muhammad Saif Ur Rahman
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; (S.H.); (M.S.U.R.); (H.C.); (C.H.)
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Hao Chen
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; (S.H.); (M.S.U.R.); (H.C.); (C.H.)
| | - Charles Han
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; (S.H.); (M.S.U.R.); (H.C.); (C.H.)
| | - Ying Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, China;
- GBA National Institute for Nanotechnology Innovation, Guangzhou 510700, China
- Correspondence: (C.W.); (Y.L.); (S.X.); Tel.: +86-10-8254-3785 (Y.L.); +86-755-2653-1165 (S.X.)
| | - Shanshan Xu
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; (S.H.); (M.S.U.R.); (H.C.); (C.H.)
- Correspondence: (C.W.); (Y.L.); (S.X.); Tel.: +86-10-8254-3785 (Y.L.); +86-755-2653-1165 (S.X.)
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5
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Wang J, Bao J, Zhou J, Li X, Zhang X, Chen W. Effects of physical aging on the self‐healing, shape memory, and crystallization behaviors of hydrogen‐bonded supramolecular polymers. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jiantao Wang
- School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou China
| | - Jianna Bao
- School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou China
| | - Jiale Zhou
- School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou China
| | - Xiang Li
- School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou China
| | - Xianming Zhang
- School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou China
| | - Wenxing Chen
- School of Materials Science and Engineering Zhejiang Sci‐Tech University Hangzhou China
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6
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7
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Sun Z, Song Y, Ma G, Gao P, Xie Z, Gao X, Li Y, Xu J, Zhong G, Li Z. Imparting Gradient and Oriented Characters to Cocontinuous Structure for Improving Integrated Performance. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhao‐Bo Sun
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China
| | - Ying‐Nan Song
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China
| | - Guo‐Qi Ma
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China
| | - Ping‐Ping Gao
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China
| | - Ze‐Xiang Xie
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China
| | - Xue‐Qin Gao
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China
| | - Yue Li
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China
| | - Jia‐Zhuang Xu
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China
| | - Gan‐Ji Zhong
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China
| | - Zhong‐Ming Li
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China
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8
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Synergistic effect of plasticizer and nucleating agent on crystallization behavior of polylactide during fused filament fabrication. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123426] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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9
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Formation and phase transition of the disordered Form I’ in electrospun PEO-thiourea complex nanofibers. POLYMER 2021. [DOI: 10.1016/j.polymer.2020.123303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Sun ZB, Wei QY, Xie XL, Xu L, Ji X, Zhou L, Zhong GJ, Li ZM. Spatial dependence of ordering process in bulk materials of polylactide and its multiple system during hygrothermal aging. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Zhao G, Gomes FPC, Marway H, Thompson MR, Zhu Z. Physical Aging as the Driving Force for Brittle–Ductile Transition of Polylactic Acid. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.201900475] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Guoqing Zhao
- Shanghai Key Lab of Chemical Assessment and SustainabilitySchool of Chemical Science and EngineeringTongji University Shanghai 200092 China
- MMRI/CAPPA‐DDepartment of Chemical EngineeringMcMaster University Hamilton Ontario L8S 4L7 Canada
| | - Felipe P. C. Gomes
- MMRI/CAPPA‐DDepartment of Chemical EngineeringMcMaster University Hamilton Ontario L8S 4L7 Canada
| | - Heera Marway
- MMRI/CAPPA‐DDepartment of Chemical EngineeringMcMaster University Hamilton Ontario L8S 4L7 Canada
| | - Michael R. Thompson
- MMRI/CAPPA‐DDepartment of Chemical EngineeringMcMaster University Hamilton Ontario L8S 4L7 Canada
| | - Zhirong Zhu
- Shanghai Key Lab of Chemical Assessment and SustainabilitySchool of Chemical Science and EngineeringTongji University Shanghai 200092 China
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12
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Sungkapreecha C, Iqbal N, Focke WW, Androsch R. Crystallization of poly(
l
‐lactic acid) in solution with the mosquito‐repellent
N
,
N
‐diethyl‐3‐methylbenzamide. POLYMER CRYSTALLIZATION 2019. [DOI: 10.1002/pcr2.10029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chanita Sungkapreecha
- Interdisciplinary Center for Transfer‐oriented Research in Natural SciencesMartin Luther University Halle‐Wittenberg Halle/Saale Germany
| | - Naeem Iqbal
- Interdisciplinary Center for Transfer‐oriented Research in Natural SciencesMartin Luther University Halle‐Wittenberg Halle/Saale Germany
| | - Walter W. Focke
- Department of Chemical Engineering, University of PretoriaInstitute of Sustainable Malaria Control Hatfield South Africa
- Department of Chemical Engineering, University of PretoriaInstitute of Applied Materials Hatfield South Africa
| | - René Androsch
- Interdisciplinary Center for Transfer‐oriented Research in Natural SciencesMartin Luther University Halle‐Wittenberg Halle/Saale Germany
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13
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14
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15
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Greatly enhanced hydrolytic degradation ability of poly(L-lactide) achieved by adding poly(ethylene glycol). CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-017-1904-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Amorphous Fractions of Poly(lactic acid). SYNTHESIS, STRUCTURE AND PROPERTIES OF POLY(LACTIC ACID) 2017. [DOI: 10.1007/12_2016_14] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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17
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Kinetics of Nucleation and Growth of Crystals of Poly(l-lactic acid). SYNTHESIS, STRUCTURE AND PROPERTIES OF POLY(LACTIC ACID) 2017. [DOI: 10.1007/12_2016_13] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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18
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Huang HD, Zhou SY, Zhou D, Ren PG, Xu JZ, Ji X, Li ZM. Highly Efficient “Composite Barrier Wall” Consisting of Concentrated Graphene Oxide Nanosheets and Impermeable Crystalline Structure for Poly(lactic acid) Nanocomposite Films. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b02168] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hua-Dong Huang
- College
of Polymer Science and Engineering and State Key Laboratory of Polymer Materials
Engineering, Sichuan University, Chengdu 610065, P. R. China
- Institute of Polymer Optoelectronic
Materials and Devices, State
Key Laboratory of Luminescent Materials
and Devices, South China University of Technology, Guangzhou 510640, China
| | - Sheng-Yang Zhou
- College
of Polymer Science and Engineering and State Key Laboratory of Polymer Materials
Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Dong Zhou
- College
of Polymer Science and Engineering and State Key Laboratory of Polymer Materials
Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Peng-Gang Ren
- Institute
of Printing and Packaging Engineering, Xi’an University of Technology, Xi’an, Shanxi 710048, P. R. China
| | - Jia-Zhuang Xu
- College
of Polymer Science and Engineering and State Key Laboratory of Polymer Materials
Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Xu Ji
- College
of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Zhong-Ming Li
- College
of Polymer Science and Engineering and State Key Laboratory of Polymer Materials
Engineering, Sichuan University, Chengdu 610065, P. R. China
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19
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Androsch R, Schick C. Interplay between the Relaxation of the Glass of Random l/d-Lactide Copolymers and Homogeneous Crystal Nucleation: Evidence for Segregation of Chain Defects. J Phys Chem B 2016; 120:4522-8. [DOI: 10.1021/acs.jpcb.6b03022] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- René Androsch
- Center
of Engineering Sciences, Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
| | - Christoph Schick
- Institute
of Physics, University of Rostock, Wismarsche Str. 43−45, 18051 Rostock, Germany
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20
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Direct investigations on strain-induced cold crystallization behavior and structure evolutions in amorphous poly(lactic acid) with SAXS and WAXS measurements. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.03.014] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Jariyasakoolroj P, Tashiro K, Wang H, Yamamoto H, Chinsirikul W, Kerddonfag N, Chirachanchai S. Isotropically small crystalline lamellae induced by high biaxial-stretching rate as a key microstructure for super-tough polylactide film. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.05.006] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Zhu Y, Zhao Y, Deng S, Zhang Q, Fu Q. Largely enhanced mechanical properties and heat distortion temperature of β-nucleated isotactic polypropylene by adding ultrafine full-vulcanized powdered rubber. RSC Adv 2015. [DOI: 10.1039/c5ra05778g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Large enhancement in toughness is observed in β-iPP with a small amount of EA-UFPR, which is mainly attributed to the decreased size of supermolecular units and formation of an interconnected structure.
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Affiliation(s)
- Yanling Zhu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Yongsheng Zhao
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Sha Deng
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Qin Zhang
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Qiang Fu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
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23
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Huang HD, Ren PG, Xu JZ, Xu L, Zhong GJ, Hsiao BS, Li ZM. Improved barrier properties of poly(lactic acid) with randomly dispersed graphene oxide nanosheets. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.04.009] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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Vyavahare O, Ng D, Hsu SL. Analysis of Structural Rearrangements of Poly(lactic acid) in the Presence of Water. J Phys Chem B 2014; 118:4185-93. [DOI: 10.1021/jp500219j] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Omkar Vyavahare
- Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - David Ng
- Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Shaw Ling Hsu
- Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
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25
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Sheng C, Zhang T, Yuan Y, Zhou L, Duan Y, Zhang J. Effect of a small amount of poly(3-hydroxybutyrate) on the crystallization behavior of poly(l
-lactic acid) in their immiscible and miscible blends during physical aging. POLYM INT 2013. [DOI: 10.1002/pi.4667] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Chunrui Sheng
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics; Qingdao University of Science and Technology; Qingdao City 266042 People's Republic of China
| | - Tongping Zhang
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics; Qingdao University of Science and Technology; Qingdao City 266042 People's Republic of China
| | - Yuan Yuan
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics; Qingdao University of Science and Technology; Qingdao City 266042 People's Republic of China
| | - Lijuan Zhou
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics; Qingdao University of Science and Technology; Qingdao City 266042 People's Republic of China
| | - Yongxin Duan
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics; Qingdao University of Science and Technology; Qingdao City 266042 People's Republic of China
| | - Jianming Zhang
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics; Qingdao University of Science and Technology; Qingdao City 266042 People's Republic of China
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26
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Chen HM, Shen Y, Yang JH, Huang T, Zhang N, Wang Y, Zhou ZW. Molecular ordering and α′-form formation of poly(l-lactide) during the hydrolytic degradation. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.09.059] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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27
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Huang HD, Xu JZ, Fan Y, Xu L, Li ZM. Poly(l-lactic acid) Crystallization in a Confined Space Containing Graphene Oxide Nanosheets. J Phys Chem B 2013; 117:10641-51. [DOI: 10.1021/jp4055796] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hua-Dong Huang
- College
of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Jia-Zhuang Xu
- College
of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Ying Fan
- College
of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Ling Xu
- College
of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Zhong-Ming Li
- College
of Polymer Science
and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
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28
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Embrittlement of poly (L-lactide)/poly (ε-caprolactone) blends upon physical aging. JOURNAL OF POLYMER RESEARCH 2012. [DOI: 10.1007/s10965-012-9936-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Bai H, Xiu H, Gao J, Deng H, Zhang Q, Yang M, Fu Q. Tailoring impact toughness of poly(L-lactide)/poly(ε-caprolactone) (PLLA/PCL) blends by controlling crystallization of PLLA matrix. ACS APPLIED MATERIALS & INTERFACES 2012; 4:897-905. [PMID: 22214560 DOI: 10.1021/am201564f] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Melt blending poly(L-lactide) (PLLA) with various biodegradable polymers has been thought to be the most economic and effective route to toughen PLLA without compromising its biodegradability. Unfortunately, only very limited improvement in notched impact toughness can be achieved, although most of these blends show significant enhancement in tensile toughness. In this work, biodegradable poly(ε-caprolactone) (PCL) was used as an impact modifier to toughen PLLA and a nucleating agent was utilized to tailor the crystallization of PLLA matrix. Depending on the nucleating agent concentrations in the matrix and mold temperatures in injection molding, PLLA/PCL blends with a wide range of matrix crystallinity (10-50%) were prepared by practical injection molding. The results show that there is a linear relationship between PLLA matrix crystallinity and impact toughness. With the increase in PLLA crystalline content, toughening becomes much easier to achieve. PLLA crystals are believed to provide a path for the propagation of shear yielding needed for effective impact energy absorption, and then, excellent toughening effect can be obtained when these crystals percolate through the whole matrix. This investigation provides not only a new route to prepare sustainable PLLA products with good impact toughness but also a fresh insight into the importance of matrix crystallization in the toughening of semicrystalline polymers with a flexible polymer.
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Affiliation(s)
- Hongwei Bai
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, PR China
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30
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Zhang T, Hu J, Duan Y, Pi F, Zhang J. Physical Aging Enhanced Mesomorphic Structure in Melt-Quenched Poly(l-lactic acid). J Phys Chem B 2011; 115:13835-41. [DOI: 10.1021/jp2087863] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tongping Zhang
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, Qingdao University of Science & Technology, Qingdao City 266042, People’s Republic of China
| | - Jian Hu
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, Qingdao University of Science & Technology, Qingdao City 266042, People’s Republic of China
| | - Yongxin Duan
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, Qingdao University of Science & Technology, Qingdao City 266042, People’s Republic of China
| | - Fuwei Pi
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, Qingdao University of Science & Technology, Qingdao City 266042, People’s Republic of China
| | - Jianming Zhang
- Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, Qingdao University of Science & Technology, Qingdao City 266042, People’s Republic of China
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Lv R, Na B, Tian N, Zou S, Li Z, Jiang S. Mesophase formation and its thermal transition in the stretched glassy polylactide revealed by infrared spectroscopy. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.08.023] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Na B, Zou S, Lv R, Luo M, Pan H, Yin Q. Unusual Cold Crystallization Behavior in Physically Aged Poly(l-lactide). J Phys Chem B 2011; 115:10844-8. [DOI: 10.1021/jp2060816] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bing Na
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, School of Biology, Chemistry and Material Science, East China Institute of Technology, Fuzhou, 344000, People's Republic of China
| | - Shufen Zou
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, School of Biology, Chemistry and Material Science, East China Institute of Technology, Fuzhou, 344000, People's Republic of China
| | - Ruihua Lv
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, School of Biology, Chemistry and Material Science, East China Institute of Technology, Fuzhou, 344000, People's Republic of China
| | - Mingbiao Luo
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, School of Biology, Chemistry and Material Science, East China Institute of Technology, Fuzhou, 344000, People's Republic of China
| | - Huayan Pan
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, School of Biology, Chemistry and Material Science, East China Institute of Technology, Fuzhou, 344000, People's Republic of China
| | - Qiang Yin
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, School of Biology, Chemistry and Material Science, East China Institute of Technology, Fuzhou, 344000, People's Republic of China
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Stoclet G, Séguéla R, Lefebvre JM, Li S, Vert M. Thermal and Strain-Induced Chain Ordering in Lactic Acid Stereocopolymers: Influence of the Composition in Stereomers. Macromolecules 2011. [DOI: 10.1021/ma200469t] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- G. Stoclet
- Université de Lille Nord de France, UMR CNRS 8207, Unité Matériaux Et Transformations, Université Lille 1, Bâtiment C6, 59655 Villeneuve d’Ascq, France
| | - R. Séguéla
- Université de Lille Nord de France, UMR CNRS 8207, Unité Matériaux Et Transformations, Université Lille 1, Bâtiment C6, 59655 Villeneuve d’Ascq, France
| | - J. M. Lefebvre
- Université de Lille Nord de France, UMR CNRS 8207, Unité Matériaux Et Transformations, Université Lille 1, Bâtiment C6, 59655 Villeneuve d’Ascq, France
| | - S. Li
- Institut de Biomolécules Max Mousseron, UMR CNRS 5247, Faculté de Pharmacie, Université Montpellier 1, 15 Avenue Charles Flahault, 34060 Montpellier, France
| | - M. Vert
- Institut de Biomolécules Max Mousseron, UMR CNRS 5247, Faculté de Pharmacie, Université Montpellier 1, 15 Avenue Charles Flahault, 34060 Montpellier, France
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Stoclet G, Seguela R, Lefebvre JM, Rochas C. New Insights on the Strain-Induced Mesophase of Poly(d,l-lactide): In Situ WAXS and DSC Study of the Thermo-Mechanical Stability. Macromolecules 2010. [DOI: 10.1021/ma101430c] [Citation(s) in RCA: 191] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- G. Stoclet
- Université de Lille Nord de France, UMR CNRS 8207, Unité Matériaux et Transformations, Université Lille1, Bâtiment C6, 59655 Villeneuve d’Ascq, France
| | - R. Seguela
- Université de Lille Nord de France, UMR CNRS 8207, Unité Matériaux et Transformations, Université Lille1, Bâtiment C6, 59655 Villeneuve d’Ascq, France
| | - J.-M. Lefebvre
- Université de Lille Nord de France, UMR CNRS 8207, Unité Matériaux et Transformations, Université Lille1, Bâtiment C6, 59655 Villeneuve d’Ascq, France
| | - C. Rochas
- Centre de Recherches sur les Macromolecules Végétales - CNRS - UPR 5301, BP 53, Domaine Universitaire de Saint Matin d’Hères, 38041 Grenoble, France
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