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Biodegradable and biocompatible supramolecular polymers based on poly(ε-caprolactone-co-δ-valerolactone)-b-poly(lactide) block copolymers with different branched structures: Synthesis, crystallization and properties. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2
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Jing Z, Huang X, Liu X, Liao M, Li Y. Poly(lactide)‐based supramolecular polymers driven by self‐complementary quadruple hydrogen bonds: construction, crystallization and mechanical properties. POLYM INT 2022. [DOI: 10.1002/pi.6445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhanxin Jing
- Department of Applied Chemistry College of Chemistry and Environment Guangdong Ocean University, No.1 Haida Road Zhanjiang 524088 China
| | - Xiaolan Huang
- Department of Applied Chemistry College of Chemistry and Environment Guangdong Ocean University, No.1 Haida Road Zhanjiang 524088 China
| | - Xingqi Liu
- Department of Applied Chemistry College of Chemistry and Environment Guangdong Ocean University, No.1 Haida Road Zhanjiang 524088 China
| | - Mingneng Liao
- Department of Applied Chemistry College of Chemistry and Environment Guangdong Ocean University, No.1 Haida Road Zhanjiang 524088 China
| | - Yong Li
- Department of Applied Chemistry College of Chemistry and Environment Guangdong Ocean University, No.1 Haida Road Zhanjiang 524088 China
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3
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Wang W, Liu Y, Ye L, Coates P, Caton-Rose F, Zhao X. Biocompatibility improvement and controlled in vitro degradation of poly (lactic acid)-b-poly(lactide-co-caprolactone) by formation of highly oriented structure for orthopedic application. J Biomed Mater Res B Appl Biomater 2022; 110:2480-2493. [PMID: 35674722 DOI: 10.1002/jbm.b.35106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 04/25/2022] [Accepted: 05/20/2022] [Indexed: 12/21/2022]
Abstract
Poly (lactic acid) (PLA) has been proposed as a promising orthopedic implant material, whereas insufficient mechanical strength, unsatisfied biocompatibility and inappropriate degradation rate restrict its further application. In this work, self-reinforced poly (lactic acid)-b-poly(lactide-co-caprolactone) (PLA-b-PLCL) block copolymer with long-chain branches was fabricated through two-stage orientation. Compared with smooth and hydrophobic PLA surface, the surface of PLA-b-PLCL presented micro-phase separated structure with improved hydrophilicity, and cells seeded on it showed improved adhesion/proliferation and high alkaline phosphatase (ALP) activity. After the 1st stage orientation at temperature higher than Tg1 (glass transition temperature of PLA phase), the amount of CH3 and CO groups on surface of PLA-b-PLCL increased, while "groove-ridge" structure formed, resulting in enhancement of surface hydrophobicity. After the 2nd stage orientation at Tg1 ~ Tg2 (glass transition temperature of PLCL phase), surface hydrophobicity/amount of CO groups further increased and "groove-ridge" structure became more significant. Due to suitable wettability and enhanced material-cell mechanical interlocking, cell proliferation/ALP activity were improved and a continuous cell layer formed on sample surface. During in vitro degradation in phosphate buffered saline solution, by introduction of PLCL segments, the crystallinity decreased and solution absorption increased, resulting in a rapid deterioration of mechanical properties. After the 1st stage orientation, a dense microfibrillar structure with high crystallinity formed, which hindered diffusion of solution and delay hydrolytic degradation. After the 2nd stage orientation, PLCL segments were arranged more closely, resulting in a further inhibition of degradation, which was helpful for controlling the strength decay rate of PLA as bone fixation materials.
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Affiliation(s)
- Wuyou Wang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China
| | - Yalong Liu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China
| | - Lin Ye
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China
| | - Phil Coates
- School of Engineering, Design and Technology, University of Bradford, Bradford, UK
| | - Fin Caton-Rose
- School of Engineering, Design and Technology, University of Bradford, Bradford, UK
| | - Xiaowen Zhao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, China
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4
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Nowacka M, Kowalewska A. Self-Healing Silsesquioxane-Based Materials. Polymers (Basel) 2022; 14:polym14091869. [PMID: 35567038 PMCID: PMC9099987 DOI: 10.3390/polym14091869] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/24/2022] [Accepted: 04/27/2022] [Indexed: 02/06/2023] Open
Abstract
This review is devoted to self-healing materials (SHM) containing polyhedral oligomeric silsesquioxanes (POSS) as building blocks. The synthetic approach can vary depending on the role POSS are expected to play in a given system. POSS (especially double-decker silsesquioxanes) can be grafted in side chains of a polymer backbone or used as segments of the main chain. Appropriate functionalization allows the formation of dynamic bonds with POSS molecules and makes them an active component of SHM, both as crosslinking agents and as factors that enhance the dynamics of macromolecules in the polymer matrix. The latter effect can be achieved by reversible release of bulky POSS cages or by the formation of separated inclusions in the polymer matrix through hydrophobic interactions and POSS aggregation. The unique properties of POSS-based self-healing systems make them interesting and versatile materials for various applications (e.g., repairable coatings, sealants, sensors, soft materials for tissue engineering, drug delivery, and wound healing).
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5
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Jing Z, Huang X, Liu X, Liao M, Zhang Z, Li Y. Crystallization, thermal and mechanical properties of stereocomplexed poly(lactide) with flexible PLLA/PCL multiblock copolymer. RSC Adv 2022; 12:13180-13191. [PMID: 35520119 PMCID: PMC9063687 DOI: 10.1039/d2ra00461e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 03/29/2022] [Indexed: 11/21/2022] Open
Abstract
In this work, the synthesized PLLA/PCL multi-block copolymers with different compositions were introduced into a stereocomplexed poly(lactide) (sc-PLA) matrix to accelerate the stereocomplexation of PLA enantiomers and improve its inherent brittleness. The PLLA/PCL multi-block copolymers were in different compositions to adjust the molecular weight of the PLLA block. The structure, molecular weight, crystallization behavior, crystal structure and thermal stability of PLLA/PCL multi-block copolymers were investigated. The results indicated that PLLA/PCL multi-block copolymers with controllable structure and composition were successfully synthesized. On this basis, the blends of sc-PLA and PLLA/PCL multi-block copolymers were prepared by solution casting, and characterized. The results revealed that the introduction of PLLA/PCL multi-block copolymers promoted the stereocomplexation of the PLA enantiomers during the melting crystallization process to obtain a complete stereocomplexed material. But the presence of the PCL block leads to a decrease in the melting temperature of the stereocomplex and difficulty in homogeneous nucleation. Compared with sc-PLA, the elongation at break of the blends was significantly improved and their tensile strengths were only slightly reduced. And the thermal stability and mechanical properties of the blends could be adjusted by controlling the content and composition of PCL/PLLA multi-block copolymers. These results revealed that the degree of stereocomplexation and toughness of sc-PLA were improved, which may expand the application fields of PLA-based materials. The PLLA/PCL multi-block copolymer was introduced into the stereocomplexed PLA matrix, and its effect on the crystallization, thermal and mechanical properties of the stereocomplexed PLA was discussed.![]()
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Affiliation(s)
- Zhanxin Jing
- Department of Applied Chemistry, College of Chemistry and Environment, Guangdong Ocean University Zhanjiang China
| | - Xiaolan Huang
- Department of Applied Chemistry, College of Chemistry and Environment, Guangdong Ocean University Zhanjiang China
| | - Xinqi Liu
- Department of Applied Chemistry, College of Chemistry and Environment, Guangdong Ocean University Zhanjiang China
| | - Mingneng Liao
- Department of Applied Chemistry, College of Chemistry and Environment, Guangdong Ocean University Zhanjiang China
| | - Zhaoxia Zhang
- Department of Applied Chemistry, College of Chemistry and Environment, Guangdong Ocean University Zhanjiang China
| | - Yong Li
- Department of Applied Chemistry, College of Chemistry and Environment, Guangdong Ocean University Zhanjiang China
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6
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Mulchandani N, Masutani K, Kumar S, Yamane H, Sakurai S, Kimura Y, Katiyar V. Toughened PLA-b-PCL-b-PLA triblock copolymer based biomaterials: effect of self-assembled nanostructure and stereocomplexation on the mechanical properties. Polym Chem 2021. [DOI: 10.1039/d1py00429h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The current research unfolds the effect of block lengths, microdomain morphology and stereocomplexation on the mechanical properties of PLA-b-PCL-b-PLA triblock copolymers where PCL is involved to improve the poor extensibility of PLA.
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Affiliation(s)
- Neha Mulchandani
- Department of Chemical Engineering
- Indian Institute of Technology Guwahati
- North Guwahati 781-039
- India
| | - Kazunari Masutani
- Department of Biobased Materials Science
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - Sachin Kumar
- Department of Bioscience and Bioengineering
- Indian Institute of Technology Guwahati
- North Guwahati 781-039
- India
| | - Hideki Yamane
- Department of Biobased Materials Science
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - Shinichi Sakurai
- Department of Chemical Engineering
- Indian Institute of Technology Guwahati
- North Guwahati 781-039
- India
- Department of Biobased Materials Science
| | - Yoshiharu Kimura
- Department of Biobased Materials Science
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - Vimal Katiyar
- Department of Chemical Engineering
- Indian Institute of Technology Guwahati
- North Guwahati 781-039
- India
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7
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Thompson CB, Korley LTJ. 100th Anniversary of Macromolecular Science Viewpoint: Engineering Supramolecular Materials for Responsive Applications-Design and Functionality. ACS Macro Lett 2020; 9:1198-1216. [PMID: 35638621 DOI: 10.1021/acsmacrolett.0c00418] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Supramolecular polymers allow access to dynamic materials, where noncovalent interactions can be used to offer both enhanced material toughness and stimuli-responsiveness. The versatility of self-assembly has enabled these supramolecular motifs to be incorporated into a wide array of glassy and elastomeric materials; moreover, the interaction of these noncovalent motifs with their environment has shown to be a convenient platform for controlling material properties. In this Viewpoint, supramolecular polymers are examined through their self-assembly chemistries, approaches that can be used to control their self-assembly (e.g., covalent cross-links, nanofillers, etc.), and how the strategic application of supramolecular polymers can be used as a platform for designing the next generation of smart materials. This Viewpoint provides an overview of the aspects that have garnered interest in supramolecular polymer chemistry, while also highlighting challenges faced and innovations developed by researchers in the field.
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Affiliation(s)
- Chase B. Thompson
- Department of Materials Science and Engineering, University of Delaware, 127 The Green, Newark, Delaware 19716, United States
| | - LaShanda T. J. Korley
- Department of Materials Science and Engineering, University of Delaware, 127 The Green, Newark, Delaware 19716, United States
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
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8
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Liu Y, Cao H, Ye L, Coates P, Caton-Rose F, Zhao X. Long-Chain Branched Poly(lactic acid)-b-poly(lactide-co-caprolactone): Structure, Viscoelastic Behavior, and Triple-Shape Memory Effect as Smart Bone Fixation Material. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06514] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yalong Liu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Huijie Cao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Lin Ye
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Phil Coates
- School of Engineering, Design and Technology, University of Bradford, Bradford BD7 1DP, U.K
| | - Fin Caton-Rose
- School of Engineering, Design and Technology, University of Bradford, Bradford BD7 1DP, U.K
| | - Xiaowen Zhao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
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9
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Shi X, Jing Z, Zhang G. Crystallization and Properties of Poly(lactide)/Poly(δ-valerolactone) Alternating Supramolecular Copolymers Adjusted by Stereocomplexation. ACS OMEGA 2019; 4:11145-11151. [PMID: 31460214 PMCID: PMC6648093 DOI: 10.1021/acsomega.9b00380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Accepted: 05/10/2019] [Indexed: 06/10/2023]
Abstract
The crystallization behavior of a series of synthesized polylactide (PLA)/poly(δ-valerolactone) (PVL) supramolecular copolymers with 2-ureido-4[1H]-pyrimidinone (UPy) groups is investigated by differential scanning calorimetry and X-ray diffraction. The stereocomplexation of PLA-based supramolecular polymers (SMPs) is strongly related to the block length, L/D ratios, and the UPy groups. Both the increase of the PLA block length and the self-complementary hydrogen bonding of the UPy end groups restrain the crystallization of the PVL blocks. The stereocomplexation of PLA-SMPs is greatly promoted by UPy groups, while the homocrystallization of PLA is constrained. The dynamic mechanical analysis indicated that the enhanced stereocomplexation would lead to higher thermal resistance and mechanical properties of PLA-based SMPs.
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Affiliation(s)
- Xuetao Shi
- Department
of Applied Chemistry, School of Natural and Applied Science, Northwestern Polytechnical University, Xi’an 710129, China
| | - Zhanxin Jing
- Department
of Applied Chemistry, Guangdong Ocean University, Zhanjiang 524088, China
| | - Guangcheng Zhang
- Department
of Applied Chemistry, School of Natural and Applied Science, Northwestern Polytechnical University, Xi’an 710129, China
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10
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Watts A, Hillmyer MA. Aliphatic Polyester Thermoplastic Elastomers Containing Hydrogen-Bonding Ureidopyrimidinone Endgroups. Biomacromolecules 2019; 20:2598-2609. [PMID: 31241922 DOI: 10.1021/acs.biomac.9b00411] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polylactide- block-poly(γ-methyl-ε-caprolactone)- block-polylactide (LML) is a sustainable thermoplastic elastomer (TPE) candidate that exhibits competitive mechanical properties as compared to traditional styrenic TPEs. The relatively low glass transition temperature of the polylactide endblocks, however, results in stress relaxation and low levels of elastic recovery. We report the synthesis and characterization of poly(γ-methyl-ε-caprolactone) (PMCL) and LML end-functionalized with ureidopyrimidinone (UPy) hydrogen-bonding moieties to improve the elastic performance of these polymers. Although UPy-functionalized PMCL shows dynamical mechanical behavior that is distinct from the unfunctionalized homopolymer, it does not exhibit elastomeric behavior at room temperature. The addition of UPy endgroups to LML increases the ultimate tensile strength, elongation at break, and tensile toughness compared to unfunctionalized LML. Stress relaxation studies at a fixed strain show reduced levels of stress relaxation in LML with UPy endgroups. The stress relaxation was further reduced by including semicrystalline poly(( S, S)-lactide) as endblocks with UPy endgroups.
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Affiliation(s)
- Annabelle Watts
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455-0431 , United States
| | - Marc A Hillmyer
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455-0431 , United States
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11
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12
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Jiang H, Kan L, Wang Z, Zhang X, Wang G, Gao S, Ma N, Wei H. A ureido-pyrimidone based aspartic acid derivative: synthesis and pH-responsive self-assembly in water. NEW J CHEM 2019. [DOI: 10.1039/c9nj03830b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pH-responsive UPy-aspartic acid aggregates can act as templates for the controlled synthesis of silver nanostructures.
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Affiliation(s)
- Hongkun Jiang
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
| | - Lei Kan
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
| | - Zhipeng Wang
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
| | - Xinyue Zhang
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
| | - Guojun Wang
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
| | - Shan Gao
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
| | - Ning Ma
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
| | - Hao Wei
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
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13
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Jing Z, Li J, Xiao W, Xu H, Hong P, Li Y. Crystallization, rheology and mechanical properties of the blends of poly(l-lactide) with supramolecular polymers based on poly(d-lactide)–poly(ε-caprolactone-co-δ-valerolactone)–poly(d-lactide) triblock copolymers. RSC Adv 2019; 9:26067-26079. [PMID: 35531016 PMCID: PMC9070369 DOI: 10.1039/c9ra04283k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 08/04/2019] [Indexed: 01/01/2023] Open
Abstract
In this study, we investigated the blending of poly(l-lactide) (PLLA) with supramolecular polymers based on poly(d-lactide)–poly(ε-caprolactone-co-δ-valerolactone)–poly(d-lactide) (PDLA–PCVL–PDLA) triblock copolymers as an efficient way to modify PLLA. The supramolecular polymers (SMP) were synthesized by the terminal functionalization of the PDLA–PCVL–PDLA copolymers with 2-ureido-4[1H]-pyrimidinone (UPy). The structure, thermal properties and rheological behavior of the synthesized supramolecular polymers were studied; we found that the formation of the UPy dimers expanded the molecular chain of the polymer and the incorporation of the UPy groups suppressed the crystallization of polymers. In addition, the synthesized supramolecular polymers had a low glass transition temperature of about −50 °C, showing the characteristics of elastomers. On this basis, superior properties such as a fast crystallization rate, high melt strength, and toughness of fully bio-based, i.e., PLA-based materials were achieved simultaneously by blending PLLA with the synthesized supramolecular polymers. In the PLLA/SMP blends, PLLA could form a stereocomplex with its enantiomeric PDLA blocks of supramolecular polymers, and the stereocomplex crystals with the cross-linking networks reinforced the melt strength of the PLLA/SMP blends. The influences of the SMP composition and the SMP content in the PLLA matrix on crystallization and mechanical properties were analyzed. The supramolecular polymers SMP0.49 and SMP1.04 showed a reverse effect on the crystallization of PLLA. Tensile tests revealed that the lower content of the synthesized supramolecular polymers could achieve toughening of the PLLA matrix. Therefore, the introduction of supramolecular polymers based on PDLA–PCVL–PDLA is an effective way to control the crystallization, rheology and mechanical properties of PLLA. Supramolecular polymer based on PDLA–PCVL–PDLA triblock copolymer was used for the modification of PLLA, and the results showed that it is an effective way to control the crystallization, rheology and mechanical properties of PLLA.![]()
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Affiliation(s)
- Zhanxin Jing
- Department of Applied Chemistry
- College of Chemistry and Environment
- Guangdong Ocean University
- Zhanjiang
- China
| | - Jin Li
- Department of Applied Chemistry
- College of Chemistry and Environment
- Guangdong Ocean University
- Zhanjiang
- China
| | - Weiyu Xiao
- Department of Applied Chemistry
- College of Chemistry and Environment
- Guangdong Ocean University
- Zhanjiang
- China
| | - Hefeng Xu
- Department of Applied Chemistry
- College of Chemistry and Environment
- Guangdong Ocean University
- Zhanjiang
- China
| | - Pengzhi Hong
- Department of Applied Chemistry
- College of Chemistry and Environment
- Guangdong Ocean University
- Zhanjiang
- China
| | - Yong Li
- Department of Applied Chemistry
- College of Chemistry and Environment
- Guangdong Ocean University
- Zhanjiang
- China
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14
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Ma Y, Shen Y, Liu Z, Shi Z, Yin J, Tian M, Qu R. Exploring multiple functions of diarylsemipinacol linked to the saturated ethylene–propylene elastomer: from the dynamic covalent networks to tailoring its macroscopic performance. Polym Chem 2019. [DOI: 10.1039/c9py01354g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Through the multiple functions of diarylsemipinacol, we prepared a mechanically robust and healable EPM with shape memory properties, by integrating self-associating ureidopyrimidinone (UPy) into the dynamic covalent networks.
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Affiliation(s)
- Youwei Ma
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composite Materials and Shanghai Key Lab of Electrical Insulation and Thermal Aging
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Yufei Shen
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composite Materials and Shanghai Key Lab of Electrical Insulation and Thermal Aging
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Zhiyong Liu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composite Materials and Shanghai Key Lab of Electrical Insulation and Thermal Aging
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Zixing Shi
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composite Materials and Shanghai Key Lab of Electrical Insulation and Thermal Aging
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Jie Yin
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composite Materials and Shanghai Key Lab of Electrical Insulation and Thermal Aging
- Shanghai Jiao Tong University
- Shanghai
- China
| | - Ming Tian
- State Key Lab of Organic–Inorganic Composites
- Beijing University of Chemical Technology
- Beijing
- China
| | - Rongjun Qu
- School of Chemistry and Materials Science
- Ludong University
- Yantai 264025
- China
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15
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Socka M, Brzezinski M, Michalski A, Kacprzak A, Makowski T, Duda A. Self-Assembly of Triblock Copolymers from Cyclic Esters as a Tool for Tuning Their Particle Morphology. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:3701-3710. [PMID: 29498863 DOI: 10.1021/acs.langmuir.8b00440] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This paper presents the effect of end groups, chain structure, and stereocomplexation on the microparticle and nanoparticle morphology and thermal properties of the supramolecular triblock copolyesters. Therefore, the series of the triblock copolymers composed of l,l- and d,d-lactide, trimethylene carbonate (TMC), and ε-caprolactone (CL) with isopropyl ( iPr) or 2-ureido-4-[1 H]-pyrimidinone (UPy) end groups at both chain ends were synthesized. In addition, these copolymers were intermoleculary stereocomplexed by polylactide (PLA) blocks with an opposite configuration of repeating units to promote their self-assembly in various organic solvents. The combination of two noncovalent interactions of the end groups and PLA enantiomeric chains leads to stronger interactions between macromolecules and allows for alteration of their segmental mobility. The simple tuning of the copolymer microstructure and functionality induced the self-assembly of macromolecules at liquid/liquid interfaces, which consequently leads to their phase separation in the form of particles with diameters ranging from 0.1 μm to 10 μm. This control is essential for their potential applications in the biomedical field, where biocompatible and well-defined microparticles and nanoparticles are highly desirable.
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Affiliation(s)
- M Socka
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
| | - M Brzezinski
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
| | - A Michalski
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
| | - A Kacprzak
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
| | - T Makowski
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
| | - A Duda
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
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16
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Kang Y, Chen P, Shi X, Zhang G, Wang C. Preparation of open-porous stereocomplex PLA/PBAT scaffolds and correlation between their morphology, mechanical behavior, and cell compatibility. RSC Adv 2018; 8:12933-12943. [PMID: 35541262 PMCID: PMC9079697 DOI: 10.1039/c8ra01305e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 03/14/2018] [Indexed: 11/30/2022] Open
Abstract
For tissue engineering applications, it is essential that biodegradable scaffolds have accessible mechanical properties, high porosity, and good biocompatibility to support the formation of new tissues. In this study, we have prepared stereocomplex polylactide (sc-PLA) incorporated poly(butylene adipate-co-terephthalate) (PBAT) scaffolds by non-solvent induced phase separation (NIPS). Also, we have characterized and compared the morphology, thermal, mechanical, and wettability properties as well as preliminary biocompatibility of scaffolds. The developed sc-PLA/PBAT scaffolds possess high porosity (>94%), well-connected open microporous structures, accessible mechanical properties, and excellent water permeability. As the content of PBAT increased, the average diameter of the sc-PLA/PBAT scaffolds decreased while the mechanical properties improved. The tensile strength was improved to 3.8 MPa while the neat PLA scaffold was 0.3 MPa, and the elongation of the scaffold was six times higher than neat PLA scaffold. Fibroblasts cells seeded on the structure maintained phenotypic shape, and the developed scaffold structure was observed to be highly capable of supporting the cell attachment and proliferation. For tissue engineering applications, it is essential that biodegradable scaffolds have accessible mechanical properties, high porosity, and good biocompatibility to support the formation of new tissues.![]()
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Affiliation(s)
- Yuan Kang
- Department of Applied Chemistry
- School of Natural and Applied Sciences
- Northwestern Polytechnical University
- Xi'an 710129
- P. R. China
| | - Peng Chen
- Department of Pharmaceutical Analysis
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- China
| | - Xuetao Shi
- Department of Applied Chemistry
- School of Natural and Applied Sciences
- Northwestern Polytechnical University
- Xi'an 710129
- P. R. China
| | - Guangcheng Zhang
- Department of Applied Chemistry
- School of Natural and Applied Sciences
- Northwestern Polytechnical University
- Xi'an 710129
- P. R. China
| | - Chaoli Wang
- Department of Pharmaceutical Analysis
- School of Pharmacy
- Fourth Military Medical University
- Xi'an
- China
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17
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Shi X, Jing Z, Zhang G, Xu Y, Yao Y. Fully bio-based poly(ɛ-capolactone)/poly(lactide) alternating multiblock supramolecular polymers: Synthesis, crystallization behavior, and properties. J Appl Polym Sci 2017. [DOI: 10.1002/app.45575] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Xuetao Shi
- MOE Key Lab of Applied Physics and Chemistry in Space; School of Science, Northwestern Polytechnical University; Xi'an 710072 China
| | - Zhanxin Jing
- MOE Key Lab of Applied Physics and Chemistry in Space; School of Science, Northwestern Polytechnical University; Xi'an 710072 China
| | - Guangcheng Zhang
- MOE Key Lab of Applied Physics and Chemistry in Space; School of Science, Northwestern Polytechnical University; Xi'an 710072 China
| | - Yan Xu
- MOE Key Lab of Applied Physics and Chemistry in Space; School of Science, Northwestern Polytechnical University; Xi'an 710072 China
| | - Yao Yao
- MOE Key Lab of Applied Physics and Chemistry in Space; School of Science, Northwestern Polytechnical University; Xi'an 710072 China
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