Review
Polymer Science
Maria Laura Di Lorenzo
Summary: PLLA and PBS are biodegradable, compostable, and biocompatible polymers that have complementary properties, making blending them an opportunity to exploit their favorable characteristics. However, research on the properties of PLLA/PBS blends has yielded contradictory results, creating complexity in their utilization.
Article
Polymer Science
Shanshan Lv, Chen Liu, Han Li, Yanhua Zhang
Summary: The structural modification of starch/PLA composites caused by hydrolysis was evaluated at different temperatures. The water uptake of the composites showed a time-dependent behavior which increased their hydrophilicity and catalyzed the hydrolysis process. The presence of starch induced hydrolysis to occur at the interface between starch and PLA matrix and slightly slowed down the hydrolysis rate.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Xiangyu Yan, Chengkai Liu, Liting He, Chentao Li, Dongmei Wang, Guangfeng Wu, Junjia Bian, Yan Zhao, Huiliang Zhang
Summary: In this study, poly(L-lactic acid) (PLLA) and poly(D-lactic acid) (PDLA) were blended with PBST to form stereocomplex poly(lactic acid) (sc-PLA) in situ during melt blending process. The PBST/sc-PLA blends showed improved mechanical properties and heat resistance compared to neat PBST. Additionally, the hydrolytic degradation of the PBST/sc-PLA blends was enhanced.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Polymer Science
Magdalena L. Iglesias-Montes, Michelina Soccio, Valentina Siracusa, Massimo Gazzano, Nadia Lotti, Viviana P. Cyras, Liliana B. Manfredi
Summary: A fully bio-based blend of poly(lactic acid) and poly(3-hydroxybutyrate) was developed, with improved properties and biodegradability through the addition of chitin nanoparticles. This research shows potential for application as biodegradable packaging materials.
Article
Polymer Science
Hao Zhang, Dawei Luo, Weijun Zhen
Summary: The study synthesized fulvic acid-g-poly(isoprene) grafting polymer as a modifier for poly(lactic acid), showing improved mechanical properties and thermal stability in the composite materials.
Article
Chemistry, Multidisciplinary
Rong Wang, Xiaojie Sun, Lanlan Chen, Wenbin Liang
Summary: In this study, biodegradable blends of PGA and PBAT with in situ compatibilization using MDI were prepared. The addition of PBAT was found to increase the complex viscosity and storage modulus of the blends, leading to improved compatibility and impact strength. The morphology of the dispersed phase evolved from spherical structure to in situ microfiber, enhancing interfacial adhesion and improving toughness.
Review
Biochemistry & Molecular Biology
T. Angelin Swetha, V. Ananthi, Abhispa Bora, Nallathambi Sengottuvelan, Kumar Ponnuchamy, Govarthanan Muthusamy, A. Arun
Summary: Due to its low carbon footprint and environmental friendliness, polylactic acid (PLA) is widely produced as a bioplastic. To increase its usage, it needs to be produced at the lowest cost possible, utilizing food wastes rich in carbohydrates as raw materials. Efficient manufacturing methods and necessary separation processes with low production costs are crucial for meeting the growing demand for PLA.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Multidisciplinary
Gutian Zhao, Xin Li, Yuan Tian, Gensheng Wu, Yi Zhang, Wei Jiang, Juekuan Yang, Zhonghua Ni
Summary: This study investigates the use of PLLA monofilaments for braided carotid stents, characterizing the properties of the monofilaments and demonstrating that the braided PLLA stents have good mechanical properties and can provide adequate support.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Polymer Science
Ina Keridou, Lourdes Franco, Luis J. del Valle, Juan C. Martinez, Lutz Funk, Pau Turon, Jordi Puiggali
Summary: The hydrolytic and enzymatic degradation of poly(4-hydroxybutyrate) films under different pH values and temperatures have been studied, along with their effects on thermal properties and crystallinity. Enzymatic degradation selectively eliminates amorphous regions and highlights the spherulitic morphology, with Rhizopus oryzae identified as the most suitable enzyme for cropping out the spherulites.
POLYMER DEGRADATION AND STABILITY
(2021)
Article
Polymer Science
Xiliang Liu, Peijie Hou, Song Liu, Jin Qi, Shaomin Feng, Lifang Zhang, Pan Ma, Wei Bai
Summary: The study found that the degradation of PPDO/PLGA blends significantly increased under in vitro conditions, with PPDO/PLGA (70/30) showing the highest weight loss. With the prolongation of hydrolysis degradation time, the crystallinity of PPDO increased, while the T-g, T-m, tensile strength, and breaking elongation of the blends gradually decreased.
JOURNAL OF POLYMER RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Jiajie Yu, Yi Huang, Songting Yu, Zepeng Huang, Shujie Yu, Ling Zhou, Shaoxian Peng, Xipo Zhao
Summary: The preparation of low molecular weight polylactic acid (PLA) through melt polycondensation limits its application range, thus the introduction of branched structures and active groups has become an important means to expand its application. In this study, pentaerythritol and sorbitol were used as core molecules for melt polycondensation with l-lactic acid, resulting in the successful preparation of epoxy-functionalized star-shaped PLA.
REACTION CHEMISTRY & ENGINEERING
(2023)
Article
Polymer Science
Lee Yae Tan, Nalinthip Chanthaset, Shinsuke Nanto, Ryoichi Soba, Masakazu Nagasawa, Hiroshi Ohno, Hiroharu Ajiro
Summary: By incorporating aromatic pendant and urea moieties, modifications were made to poly(trimethylene carbonate) (PTMC) to improve thermal stability and mechanical properties. The chemically modified PTMC films demonstrated superior characteristics in mechanical performance and thermal properties, showing potential widespread applications at elevated temperatures.
Article
Nanoscience & Nanotechnology
Lv Ke, Ting Yang, Chenyu Liang, Xin Guan, Tian Li, Yang Jiao, Daoyuan Tang, Donghui Huang, Shihang Li, Shenghui Zhang, Xinjian He, Huan Xu
Summary: In this study, electroactive and antibacterial poly(lactic acid) nanofibrous membranes (NFMs) were fabricated using a facile method. Microwave-assisted doping was employed to produce zinc-doped titanium dioxide nanoparticles, which greatly improved the properties of the PLA nanofibers. The composite NFMs showed enhanced filtration performance and antibacterial activity compared to pure PLA, making them promising for healthcare applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Xiliang Liu, Song Liu, Shaomin Feng, Kaiqi Li, Youkun Fan, Xin Wang, Jianping Xiao, Wei Bai, Dongliang Chen, Chengdong Xiong, Lifang Zhang
Summary: Rubbery biodegradable cross-linked PTMC networks were prepared by gamma irradiation, with PETA showing better crosslinking efficiency compared to TMPTA and PET4A. Networks with high gel fractions and tensile strength could be obtained by adding 7 wt% PETA. Increasing irradiation dose led to reduced gel content and network density, resulting in decreased mechanical properties. Ethanol-extracted PTMC networks exhibited better flexibility and mechanical properties, contributing to their potential in soft tissue engineering applications.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Polymer Science
Chengkai Liu, Zhengyi Han, Xiangyu Yan, Jinshuo Yu, Qiao Zhang, Dongmei Wang, Yan Zhao, Huiliang Zhang
Summary: In this study, a novel and environmentally friendly PBSA/sc-PLA blend was obtained by melt-blending equimolar amounts of PLLA and PDLA with PBSA. The formation of sc-PLA in the PBSA matrix was confirmed by differential scanning calorimetry and wide-angle X-ray diffractometry, and the sc-PLA was uniformly dispersed in the PBSA matrix. The addition of sc-PLA increased the strength, heat resistance, and hydrolytic degradation resistance of the PBSA matrix, providing an effective strategy to improve the performance and expand the application scope of PBSA materials.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Biomedical
Ali Honarpardaz, Shiva Irani, Mohamad Pezeshki-Modaress, Mojgan Zandi, Amin Sadeghi
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
(2019)
Article
Chemistry, Applied
Seyed Fakhreddin Hosseini, Zahra Nahvi, Mojgan Zandi
FOOD HYDROCOLLOIDS
(2019)
Article
Materials Science, Multidisciplinary
Atieyh Esmi, Yousef Jahani, Ali Akbar Yousefi, Mojgan Zandi
MATERIALS RESEARCH EXPRESS
(2019)
Article
Polymer Science
Mohadeseh Akbarzadeh, Mohamad Pezeshki-Modaress, Mojgan Zandi
JOURNAL OF APPLIED POLYMER SCIENCE
(2020)
Article
Pharmacology & Pharmacy
Ali Shababdoust, Mojgan Zandi, Morteza Ehsani, Parvin Shokrollahi, Reza Foudazi
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2020)
Article
Pharmacology & Pharmacy
Monireh Azizi, Farhid Farahmandghavi, Mohammad Taghi Joghataei, Mojgan Zandi, Mohammad Imani, Mehrdad Bakhtiari, Hamid Omidian
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2020)
Article
Polymer Science
Mohammad Kazemi Ashtiani, Mojgan Zandi, Parvin Shokrollahi, Morteza Ehsani, Hossein Baharvand
POLYMERS FOR ADVANCED TECHNOLOGIES
(2020)
Article
Engineering, Civil
J-F Masson, Peter Collins, Marzieh Riahinezhad, Itzel Lopez-Carreon, Jocelyn Johansen
Summary: This study investigated three room-temperature fluid-applied silicone membranes intended for building envelopes. The membranes were subjected to accelerated aging tests for 5000 hours to evaluate their resistance to long-term aging. The results showed that the silicone membranes exhibited resilience under aggressive UV radiation and moisture aging conditions.
CANADIAN JOURNAL OF CIVIL ENGINEERING
(2022)
Article
Engineering, Biomedical
Maryam Khajavi, Abdolmajid Hajimoradloo, Mojgan Zandi, Mohamad Pezeshki-Modaress, Shahin Bonakdar, Abbas Zamani
Summary: The study successfully engineered a cartilage-like scaffold using ECM from sturgeon fish cartilage to stimulate cartilaginous matrix synthesis in human adipose stem cells. The porous scaffold derived from fish cartilage ECM showed excellent potential for cartilage tissue engineering, supporting cell adhesion, proliferation, and chondrogenic differentiation. The scaffold was demonstrated to facilitate the synthesis of specific cartilage proteins, such as collagen type II and aggrecan, making it a promising option for tissue regeneration.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
(2021)
Article
Construction & Building Technology
M. Riahinezhad, J-F Masson, P. Collins, B. Di Lenardo, M. A. Lacasse, J. Johansen
Summary: Air-barrier systems (ABS) are crucial in controlling air infiltration and exfiltration, as well as reducing moisture movement and heat transfer in building envelopes to lower energy costs. The Canadian Construction Materials Centre (CCMC) has developed performance standards for liquid-applied ABS and provides guidance for compliance assessment.
JOURNAL OF ARCHITECTURAL ENGINEERING
(2021)
Article
Engineering, Mechanical
J. -F. Masson, Itzel Lopez-Carreon, Jiyuan Wu, Otome Obukohwo, Peter Collins, Marzieh Riahinezhad, Elnaz Esmizadeh
Summary: This research investigates the aging resistance of silicone products under highly alkaline conditions. The study found that alkaline aging caused changes in morphology, mechanical properties, thermal properties, and surface chemistry of the silicone membranes. The service life of the silicone product was estimated using the Dakin-Arrhenius model, and the results showed significant aging acceleration due to alkaline immersion.
ENGINEERING FAILURE ANALYSIS
(2022)
Article
Forestry
Mathieu Lemaire-Paul, Callisto Ariadne Beuthe, Marzieh Riahinezhad, M. Reza Foruzanmehr
Summary: This study aims to reduce the water uptake capacity of spruce wood by dip-coating samples in an aqueous colloid of silicon dioxide (SiO2) nanoparticles. The results showed that SiO2 impregnation performed under higher vacuum pressure was more effective in increasing the wood density and reducing porosity, leading to a significant reduction in water uptake of the spruce wood.
WOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Polymer Science
Amirhesam Arabsorkhi-Mishabi, Mojgan Zandi, Fahimeh Askari, Mohamad Pezeshki-Modaress
Summary: Different polycaprolactone (PCL) soft blocks were incorporated into poly(glycerol sebacate) (PGS) structure to prepare a series of PGS-based elastomers with varied chemical compositions and mechanical properties. The PGS and PGS-co-PCL elastomers were prepared through thermal curing without any catalysts. The synthesized PGS-co-PCL elastomers exhibited tunable mechanical properties in the range of soft tissues and showed promising potential in biomedical applications and soft tissue engineering.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Biomedical
Sogand Safari, Morteza Ehsani, Mojgan Zandi
Summary: A high molecular weight PNVCL-PVAc thermo-responsive copolymer suitable for electrospun nanofiber fabrication was successfully synthesized and demonstrated to have biocompatibility and non-cytotoxicity. The synthesized copolymers showed promising characteristics for biomedical applications, as confirmed by contact angle test and cell proliferation results.
PROGRESS IN BIOMATERIALS
(2021)
Review
Construction & Building Technology
Marzieh Riahinezhad, Madeleine Hallman, J-F. Masson
Summary: This paper critically reviews the degradation, durability, and service life prediction of polymeric building envelope materials, emphasizing the importance of SLP under climate change. The surrounding environment of a building affects material aging mechanisms, with climate change increasing unpredictability. The development of more comprehensive SLP methods is necessary to address these challenges.
