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Imai Y, Tominaga Y, Tanaka S, Yoshida M, Furutate S, Sato S, Koh S, Taguchi S. Modification of poly(lactate) via polymer blending with microbially produced poly[(R)-lactate-co-(R)-3-hydroxybutyrate] copolymers. Int J Biol Macromol 2024; 266:130990. [PMID: 38508553 DOI: 10.1016/j.ijbiomac.2024.130990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/11/2024] [Accepted: 03/16/2024] [Indexed: 03/22/2024]
Abstract
This study investigated the effect of polymer blending of microbially produced poly[(R)-lactate-co-(R)-3-hydroxybutyrate] copolymers (LAHB) with poly(lactate) (PLA) on their mechanical, thermal, and biodegradable properties. Blending of high lactate (LA) content and high molecular weight LAHB significantly improved the tensile elongation of PLA up to more than 250 % at optimal LAHB composition of 20-30 wt%. Temperature-modulated differential scanning calorimetry and dynamic mechanical analysis revealed that PLA and LAHB were immiscible but interacted with each other, as indicated by the mutual plasticization effect. Detailed morphological characterization using scanning probe microscopy, small-angle X-ray scattering, and solid-state NMR confirmed that PLA and LAHB formed a two-phase structure with a characteristic length scale as small as 20 nm. Because of mixing in this order, the polymer blends were optically transparent. The biological oxygen demand test of the polymer blends in seawater indicated an enhancement of PLA biodegradation during biodegradation of the polymer blends.
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Affiliation(s)
- Yusuke Imai
- Multi-Material Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 4-205, Sakurazaka, Moriyama-ku, Nagoya, Aichi 463-8560, Japan.
| | - Yuichi Tominaga
- Multi-Material Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 4-205, Sakurazaka, Moriyama-ku, Nagoya, Aichi 463-8560, Japan
| | - Shinji Tanaka
- Interdisciplinary Research Center for Catalytic Chemistry, AIST, Tsukuba, Ibaraki, Japan
| | - Masaru Yoshida
- Interdisciplinary Research Center for Catalytic Chemistry, AIST, Tsukuba, Ibaraki, Japan
| | | | | | - Sangho Koh
- Graduate School of Science, Technology and Innovation, Kobe University, Nada, Kobe 657-8501, Japan
| | - Seiichi Taguchi
- Graduate School of Science, Technology and Innovation, Kobe University, Nada, Kobe 657-8501, Japan; Engineering Biology Research Center, Kobe University, Nada, Kobe 657-8501, Japan.
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2
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Tian T, Feng C, Wang Y, Zhu X, Yuan D, Yao Y. Synthesis of N-Methyl- o-phenylenediamine-Bridged Bis(phenolato) Lanthanide Alkoxides and Their Catalytic Performance for the (Co)Polymerization of rac-Butyrolactone and l-Lactide. Inorg Chem 2022; 61:9918-9929. [PMID: 35723524 DOI: 10.1021/acs.inorgchem.2c00582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of lanthanide alkoxo complexes supported by ONNO salalen ligands were synthesized and characterized. A one-pot reaction of LH2 (L = (2-O-C6H2-tBu2-3,5)CH═N-C6H4-N(CH3)CH2(2-O-C6H2-tBu2-3,5)) with LnCp3(THF) in a 1:1 molar ratio followed by the addition of 1 equiv of ROH (R = Bn, iPr, and CF3CH2), afforded the dimeric lanthanide alkoxo complexes [LLn(μ-OCH2Ph)]2 [Ln = Lu (1), Yb (2), Sm (3), Nd (4)], [L2Yb(μ-OiPr)]2 (5), and [L2Yb(μ-OCH2CF3)]2 (6) in good isolated yields. All these lanthanide complexes were characterized by elemental analysis and FT-IR spectroscopy. In addition, complex 1 has been characterized by NMR spectroscopy. Single-crystal X-ray diffraction analysis of complexes 1, 2, 5, and 6 showed that these lanthanide alkoxo complexes are dimeric in the solid state. Complexes 1-6 showed good activity toward the homopolymerization of rac-butyrolactone (rac-BBL) to give atactic PHB, and ionic radii of central metals have profound influence on the polymerization. The polymerization behavior of l-lactide (l-LA) initiated by complex 2 was also explored. The kinetic study revealed that the polymerizations of rac-BBL and l-LA initiated by salalen lanthanide akoxide are first order for both the monomer and the initiator concentrations. Furthermore, it was found that complexes 1 and 2 showed good activity in the copolymerization of l-LA and rac-BBL, affording gradient copolymers.
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Affiliation(s)
- Tian Tian
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering & Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China
| | - Chunping Feng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering & Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China
| | - Yaorong Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering & Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China
| | - Xuehua Zhu
- School of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou 215009, People's Republic of China
| | - Dan Yuan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering & Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering & Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China
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3
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Catchpole P, Platel RH. Copolymerisation of
β
‐butyrolactone and
γ
‐butyrolactone using yttrium amine bis(phenolate) Catalysts. POLYM INT 2022. [DOI: 10.1002/pi.6429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Pip Catchpole
- Department of Chemistry Lancaster, University Lancaster LA1 4YB UK
- Materials Science Institute Lancaster University Lancaster LA1 4YB UK
| | - Rachel H. Platel
- Department of Chemistry Lancaster, University Lancaster LA1 4YB UK
- Materials Science Institute Lancaster University Lancaster LA1 4YB UK
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Yang X, Zhang W, Huang HY, Dai J, Wang MY, Fan HZ, Cai Z, Zhang Q, Zhu JB. Stereoselective Ring-Opening Polymerization of Lactones with a Fused Ring Leading to Semicrystalline Polyesters. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xing Yang
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Wei Zhang
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Hao-Yi Huang
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Jiang Dai
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Meng-Yuan Wang
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Hua-Zhong Fan
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Zhongzheng Cai
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Qi Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
| | - Jian-Bo Zhu
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, People’s Republic of China
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Wang C, Zhang X, Zhao W, Liu X, Wang Q, Sun J. Synthesis of Aliphatic Hyperbranched Polycarbonates via Organo-Catalyzed “A1+B2”-Ring-Opening Polymerization. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Chengliang Wang
- Key Laboratory of Rubber-Plastics, Ministry of Education, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Zhengzhou Rd. 53, Qingdao CN-266042, China
| | - Xu Zhang
- Key Laboratory of Rubber-Plastics, Ministry of Education, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Zhengzhou Rd. 53, Qingdao CN-266042, China
| | - Wei Zhao
- Key Laboratory of Rubber-Plastics, Ministry of Education, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Zhengzhou Rd. 53, Qingdao CN-266042, China
| | - Xin Liu
- Key Laboratory of Rubber-Plastics, Ministry of Education, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Zhengzhou Rd. 53, Qingdao CN-266042, China
| | - Qingfu Wang
- Key Laboratory of Rubber-Plastics, Ministry of Education, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Zhengzhou Rd. 53, Qingdao CN-266042, China
| | - Jingjiang Sun
- Key Laboratory of Rubber-Plastics, Ministry of Education, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Zhengzhou Rd. 53, Qingdao CN-266042, China
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English LE, Jones MD, Liptrot D. N‐Heterocyclic Phosphines as Precatalysts for the Highly Selective Degradation of Poly(lactic acid). ChemCatChem 2021. [DOI: 10.1002/cctc.202101904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - David Liptrot
- University of Bath Chemistry Claverton Down BA2 7AY Bath UNITED KINGDOM
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7
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Jia Z, Li Y, Wu J. Sequence‐Controlled Alternating Copolyesters Synthesis via Selective Ring‐Opening Polymerization. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100323] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhaowei Jia
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province College of Chemistry and Chemical Engineering. Lanzhou University No. 222 Tianshui South Road Lanzhou 730000 P. R. China
| | - Yuju Li
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province College of Chemistry and Chemical Engineering. Lanzhou University No. 222 Tianshui South Road Lanzhou 730000 P. R. China
| | - Jincai Wu
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province College of Chemistry and Chemical Engineering. Lanzhou University No. 222 Tianshui South Road Lanzhou 730000 P. R. China
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