Article
Polymer Science
Wen Lin, Yujin Zhao, Tingting Su, Zhanyong Wang
Summary: The degradation behavior of PBAT films by different concentrations of Fusarium solani cutinase (FsC) was investigated. It was found that FsC could degrade both the amorphous region and the crystalline region of PBAT films, and its degradation activity was concentration-dependent. High concentration of FsC resulted in significant degradation of PBAT films, while low concentration had less apparent effect. FsC concentration and degradation time did not significantly affect the molecular weight of degraded PBAT.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Polymer Science
Yaqing Shang, Zhiguo Jiang, Zhaobin Qiu
Summary: Novel biobased and biodegradable PBS-b-PBSe multiblock copolymers were successfully synthesized with high thermal stability. The two blocks crystallized separately in both amorphous and crystalline phases. The mechanical properties of the copolymers were significantly improved compared to homopolymers.
Article
Polymer Science
Belen Sena, Jose Luis Acena, Jose Luis Novella Robisco, Belen Monje Martinez, Laura Marti Montaner, Maria Isabel Fernandez-Bachiller
Summary: This study investigates the preparation of biodegradable polyesters using immobilized lipases on different solid supports. The results demonstrate that the nature of the solid support significantly affects the catalytic activity and effectiveness of the lipases towards polycondensation reactions, resulting in variations in molecular weight and crystallinity of the polyesters.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Guoqiang Wang, Li Zhang, Xiang Chi
Summary: Due to its superior tensile strength, biodegradability, and biocompatibility, poly(lactic acid) (PLA) has become a growth-oriented biodegradable material. However, its poor ductility has limited its practical applications. To address this, ductile blends were prepared by melt-blending poly(butylene succinate-co-butylene 2,5-thiophenedicarboxylate) (PBSTF25) with PLA, which significantly improved the ductility of PLA. The addition of PBSTF25 promoted cold crystallization and stretch-induced crystallization of PLA, and the resulting blends exhibited improved ductility and processing properties. The toughening effect of PBSTF25 was found to be better than that of poly(butylene succinate).
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Polymer Science
Danhua Jiao, Xiaodong Cai, Qun Song, Ruiqun Zhou, Xiao Peng, Dongmei Bao
Summary: A series of aliphatic poly(carbonate-co-ester)s were successfully synthesized via melt polycondensation, showing a wide variation in physical properties depending on composition. Fumaric acid units in poly(butylene carbonate) chains increased glass transition temperature and thermal stability. Some copolymers contained PBC crystals, while others had a lattice structure similar to poly(butylene fumarate).
Article
Polymer Science
Mengyang Zhou, Kangjing Zhang, Zhiguo Jiang, Zhaobin Qiu
Summary: Novel PBS-b-PDEGT multiblock copolyesters with different mass ratios of amorphous hard PDEGT and crystallizable soft PBS segments were successfully synthesized in this study. These copolyesters showed high thermal stability and significantly improved elongation at break compared to PBS homopolymer. The introduction of PDEGT segment slightly reduced the melting point while increasing the elongation at break.
Article
Polymer Science
Hsu-I. Mao, Li-Yuan Wang, Chin-Wen Chen, Kai-Hung Hsu, Cheng-Hang Tsai, Chia-Jung Cho, Yang-Yen Yu, Syang-Peng Rwei, Chi-Ching Kuo
Summary: Isothermal and nonisothermal crystallization kinetics studies showed that a small amount of glycerol can enhance the crystallization rate and relative crystallinity of PBSPS copolymers, while excessive glycerol can restrict the movement of molecular chains and decrease the relative crystallinity.
JOURNAL OF POLYMER RESEARCH
(2021)
Article
Polymer Science
Carlos Perez-Valdez, Guillermina Burillo, Rodrigo Navarro, Angel Marcos-Fernandez
Summary: PBS and PBSA were irradiated with gamma radiation up to a dose of 400 kGy, resulting in the formation of gel content. PBSA exhibited higher gel content compared to PBS. Analysis revealed that chain scission predominated over crosslinking. Branching and chain scission increased the dispersity and affected the molecular weight. NMR analysis showed the appearance of new species and changes in species with increasing dose. The thermal properties, especially crystallization temperature, were significantly affected by irradiation. Mechanical properties of both polymers were greatly reduced, making them fragile even at low doses.
Article
Polymer Science
Maryam Safari, Ricardo A. Perez Camargo, Laura Ballester-Bayarri, Guoming Liu, Agurtzane Mugica, Manuela Zubitur, Dujin Wang, Alejandro J. Mueller
Summary: This study explores the possibility of blending PBS and PCL with BSxCLy copolymers and systematically studies the crystallization behavior of the blends. The results show that the PBS/BS78CL22 blend exhibits good miscibility at high PBS content, while the PCL/BS15CL85 blend still displays partial miscibility at high PCL content. The BS46CL54 copolymer can crystallize in both PBS and PCL type crystals, depending on the polymeric matrix.
Article
Polymer Science
Hideaki Ono, Yasutaka Kawai, Seisuke Ata, Hiroyuki Minamikawa, Kazuma Kurihara, Shinji Tanaka, Masaru Yoshida
Summary: A series of multiblock copolymers with a combination of biomass-originated and biodegradable poly(butylene succinate) (PBS) and poly(2-pyrrolidone) (PA4) units were synthesized with different mean degrees of polymerization (mDP) for each unit. The multiblock structure allows the two components to mix in solution-cast films, despite their inherent immiscibility. The mechanical properties of the films were found to be highly dependent on the mDP of each unit, as demonstrated by tensile tests. The copolymer film with the lowest mDP for each unit (PBS: 17, PA4: 10) was transparent and exhibited high elongation at break (>400%) and high tensile stress (39.5 MPa) with strain hardening. Films with 50% or higher crystallinity were brittle and opaque, while a decrease in crystallinity resulted in higher elongation, as revealed by wide-angle X-ray diffraction measurements.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Polymer Science
Yi Li, Guoyong Huang, Cong Chen, Xue-Wei Wei, Xi Dong, Wei Zhao, Hai-Mu Ye
Summary: By incorporating AD units into PBS chains, the crystallization temperature and crystallinity of PBS can be depressed, while the primary nucleation capability is significantly strengthened without altering crystal modification or crystallization kinetics. The presence of specific interactions among AD units is crucial for the performance of PBSAD, and further investigation may lead to the design of superior PBS copolymers in the future.
Article
Polymer Science
Maria Nunez, Sebastian Munoz-Guerra, Antxon Martinez de Ilarduya
Summary: This study investigates the enzymatic synthesis of poly(butylene-co-epsilon-caprolactone) copolyesters for the first time, demonstrating high thermal stability and semicrystalline properties. The use of Candida antarctica lipase B resulted in copolyesters free from toxic metallic catalysts, making them potential candidates for biomedical applications.
Review
Polymer Science
Massimiliano Barletta, Clizia Aversa, Muhammad Ayyoob, Annamaria Gisario, Kotiba Hamad, Mehrshad Mehrpouya, Henri Vahabi
Summary: The development of biodegradable and compostable materials, such as polybutylene succinate (PBS), as alternatives to fossil-based plastics is highly important. PBS is a compostable aliphatic polyester with good mechanical strength and thermal resistance. However, it is often blended with other polymers, fillers, and additives to improve processability and mechanical performance. Recent advances in polymer blending processes have made PBS blends an interesting material platform for applications requiring a balance of mechanical strength, flexibility, thermal resistance, and compostability.
PROGRESS IN POLYMER SCIENCE
(2022)
Article
Polymer Science
Guoqiang Wang, Xingyu Hao, Yakun Dong, Li Zhang, Rubo Sun
Summary: Novel poly(butylene succinate-co-butylene 2,5-thiophenedicarboxylate) (PBSTFs) were successfully synthesized, and their structure, thermal properties, crystalline properties, mechanical properties, and rheological properties were characterized. By adjusting the content of butylene 2,5-thiophenedicarboxylate unit (BTF), fully bio-based copolyesters with excellent properties can be obtained.
EXPRESS POLYMER LETTERS
(2022)
Article
Chemistry, Physical
Han Xu, Yancun Yu, Yi Li
Summary: The ternary blend of PBS/PPC/PVAc showed improved crystallization rate, stiffness, and toughness due to morphological evolution. Adding PVAc and PPC enhanced mechanical properties, especially in the presence of 10 wt% PVAc.
COLLOID AND POLYMER SCIENCE
(2021)
Article
Polymer Science
Mengyan Qi, Liuchun Zheng, Chuncheng Li, Yaonan Xiao, Jiajian Liu, Shaohua Wu, Bo Zhang
Summary: The yellowing mechanism of polyesteramide based on PET-PA6 has been studied, with the color generation mainly attributed to the reaction between the terminal primary amine group of PA6 and acetaldehyde to form Schiff bases and further condensed into conjugated imine structures. The degradation of PA6 segments during use may lead to the formation of new primary amino groups, increasing the yellowness of the material.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Zi-Yun Shen, Qi-Yong Mei, Yi Liu, Liu-Chun Zheng, Chun-Cheng Li, Jia-Jian Liu, Yao-Nan Xiao, Shao-Hua Wu, Bo Zhang
Summary: A series of non-isocyanate linear high molecular weight poly(ester urethane)s (PETUs) were prepared through an environmentally-friendly route, and their properties were characterized. The results showed that PETUs have high molecular weights and tensile strength, with the degree of phase separation being affected by crystallization and hydrogen bonding interaction.
CHINESE JOURNAL OF POLYMER SCIENCE
(2022)
Article
Polymer Science
Ziyun Shen, Liuchun Zheng, Danqing Song, Yi Liu, Chuncheng Li, Jiajian Liu, Yaonan Xiao, Shaohua Wu, Tianbo Zhou, Bo Zhang, Xuedong Lv, Qiyong Mei
Summary: This study focuses on the preparation of a series of non-isocyanate poly(ether urethane) (PEU) through an environmentally friendly route. The researchers investigated the effect of the chemical structure of polyurethane hard segments on the properties of the PEU. The results showed that the urea groups generated by side reactions influenced the crystallization of hard segments, which in turn affected the thermal and mechanical properties of the polymer.
Article
Polymer Science
Xuedong Lv, Faliang Luo, Liuchun Zheng, Ruixue Niu, Yi Liu, Qiqi Xie, DanQing Song, YunChuan Zhang, Tianbo Zhou, Shifan Zhu
Summary: Biobased co-polyesters poly(butylene succinate-co-butylene furandicarboxylate) (PBSF) with high molecular weight and excellent thermal stability were prepared. These polymers exhibited semi-crystalline structure and high tensile strength, with elongation at break significantly higher than commercial poly(butylene succinate) (PBS) and most biodegradable packaging materials. Increasing the BF unit content improved the UV shielding properties of the polyester materials. Moreover, PBSF showed a significantly faster biodegradation rate when the BF unit content was 5%. These bio-based polymers have great potential to be applied as environmentally friendly and sustainable plastic packaging.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Xuedong Lv, Haitao Lin, Zhengxiang Wang, Ruixue Niu, Yi Liu, Yen Wei, Liuchun Zheng
Summary: A novel polymer, PBSF-PEG, was synthesized using a two-step transesterification and polycondensation method. It exhibited high molecular weight and good mechanical properties, with the introduction of PEG enhancing toughness and water degradation performance. These new polymers have great potential for application as environmentally friendly and sustainable plastic packaging materials.
Article
Engineering, Environmental
Tianbo Zhou, Xueshuai Wang, Yi Liu, Liuchun Zheng
Summary: The preparation of PBS ionomers with high molecular weight and high ion group content was successfully achieved using transesterification method. The increase in ion group content significantly improved the mechanical properties and hydrophilicity of the PBS ionomers. The introduction of ions also improved the processing properties of the ionomers. The results showed a reversed trend compared to previous research.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Ruixue Niu, Zhening Zheng, Xuedong Lv, Benqiao He, Sheng Chen, Jiaying Zhang, Yanhong Ji, Yi Liu, Liuchun Zheng
Summary: The introduction of pentaerythritol as a branching agent in the synthesis of poly(butylene dodecanedioate) (PBD) can improve the melt strength and blow-molding properties of the polymer. The introduction of a small amount of pentaerythritol generates branching and crosslinking structures, leading to improved impact strength and tensile modulus. The PER-branched PBDs also exhibited enhanced crystallization ability and shear-thickening behavior.
Article
Chemistry, Multidisciplinary
Tianbo Zhou, Bing Wang, Xueshuai Wang, Haoran Sun, Yi Liu, Liuchun Zheng
Summary: In this study, a diatom-like structure poly-(butylene succinate)-b-polydimethylsiloxane (PBSP) was synthesized using polydimethylsiloxane (PDMS), and the effect of molecular weight on the structure and properties of PBSP was systematically investigated for the first time. PBSP exhibited a unique layered structure and excellent combined performance, with improved mechanical properties and additional functionalities. The inclusion of PDMS blocks also resulted in hydrophobicity and self-healing properties, expanding the application range of PBS materials.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Tianbo Zhou, Guoming Liu, Ming Wang, Yi Liu, Liuchun Zheng
Summary: PDMS-modified poly(butylene succinate) (PBS) was successfully synthesized, resulting in high-performance and functional PBS-b-PDMS copolymers. The copolymers exhibited excellent combined properties, thermal properties, and impact strength, as well as good antismudge, self-cleaning, and solvent resistance.
Article
Chemistry, Physical
Jilei Chen, Wenrong Fu, Jiaqiang Xiong, Wei Zhang, Feng-Lei Jiang, Liuchun Zheng, Yi Liu, Peng Jiang
Summary: A universal and facile self-assembly method of copper indium selenium (CISe) QD aerogels based on coordination interaction between Zn2+ and carboxyl was proposed, which has been successfully applied in green pollution-free environment-friendly anti-counterfeiting and encryption systems.
Article
Materials Science, Biomaterials
Jiaxu Li, Liuchun Zheng, Chuncheng Li, Yaonan Xiao, Jiajian Liu, Shaohua Wu, Bo Zhang
Summary: The newly developed mannose-modified zwitterionic nanoparticles loading IR1048 dye exhibit excellent targeting properties and photothermal conversion efficiency in vitro experiments, showing no cytotoxicity to normal cells and significant photothermal toxicity to drug-resistant cancer cells, demonstrating potential application prospects.
BIOMATERIALS SCIENCE
(2021)
Article
Polymer Science
Qing Ouyang, Jiajian Liu, Chuncheng Li, Liuchun Zheng, Yaonan Xiao, Shaohua Wu, Bo Zhang
Article
Polymer Science
Jiaxu Li, Liuchun Zheng, Haihua Xiao, Chuncheng Li, Shaohua Wu, Yaonan Xiao, Jiajian Liu, Bo Zhang
Article
Chemistry, Multidisciplinary
Guyu Zhang, Yimin Zhu, Yushu Wang, Dengshuai Wei, Yixin Wu, Liuchun Zheng, Huimin Bai, Haihua Xiao, Zhenyu Zhang
Article
Materials Science, Biomaterials
Yufei Bian, Zhiyong Wei, Zefeng Wang, Zhu Tu, Liuchun Zheng, Wenhuan Wang, Xuefei Leng, Yang Li
JOURNAL OF MATERIALS CHEMISTRY B
(2019)