Chinese Journal of Polymer Science最新文献

{"title":"Sodium Carboxymethyl Cellulose/Polypyrrole Nanoparticle-doped Conductive Hydrogel for Self-powered Flexible Strain Sensors and Signal Transmission","authors":"Jie He,&nbsp;Chang-Ning Hu,&nbsp;Zhou-Ya Yang,&nbsp;Hui Yang,&nbsp;Yin-Jie Peng","doi":"10.1007/s10118-026-3681-y","DOIUrl":"10.1007/s10118-026-3681-y","url":null,"abstract":"<div><p>Conductive hydrogels, with their excellent flexibility and tunable electrical conductivity, have shown broad application prospects in emerging fields such as flexible strain sensors and triboelectric nanogenerators (TENG). In this study, a conductive sodium carboxymethyl cellulose (CMC)/ polypyrrole (PPy)/polyacrylamide (PAM)(CPA) hydrogel was developed by integrating a CMC/PPy composite, synthesized <i>via in situ</i> polymerization, into a hydrophobic-associated polyacrylamide network. This hydrogel exhibits excellent mechanical properties, with a tensile strain as high as 1735%, demonstrating extremely high ductility and deformation capacity. The flexible sensor based on CPA hydrogel has a wide detection range (0%–500%) and can monitor the movements of various parts of the human body. In addition, the TENG assembled based on CPA hydrogel achieves stable electrical output performance, enabling it to power small wearable electronic devices and promote self-powered signal transmission, showing broad application prospects in the fields of intelligent human-machine interaction and wearable electronics.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 8","pages":"2714 - 2725"},"PeriodicalIF":4.6,"publicationDate":"2026-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148781972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Topology-regulated Co-assembly of Single Chain Polymer Nanoparticles and Block Copolymers into Hierarchical Micelle@Vesicle Composite Structures","authors":"Bai-Xue Deng,&nbsp;Hong-Zhu Lai,&nbsp;Li Jiang,&nbsp;Lin Yu,&nbsp;Lin Cheng,&nbsp;Dao-Yong Chen","doi":"10.1007/s10118-026-3713-7","DOIUrl":"10.1007/s10118-026-3713-7","url":null,"abstract":"<div><p>Polymer co-assembly provides a versatile route to hierarchical nanostructures, yet achieving precise structural control remains a significant challenge. In particular, understanding how topological differences in polymer building blocks influence co-assembly behavior is important for expanding the design of complex polymer materials. In this work, a co-assembly system of amphiphilic block copolymers (BCPs) and single chain polymer nanoparticles (SCPs) was designed to investigate the effect of topological variations. At certain SCP/BCP mass ratios, BCPs and SCPs co-assembled to form a hierarchical composite structure with vesicles growing on the surface of micelles, following a path-dependent stepwise co-assembly mechanism, where SCPs co-assembled with BCP to form core micelles and self-assembled into vesicles from the micelle surface into hierarchical micelle@vesicle (M@V) composite structure. The SCP/BCP mass ratio significantly influences the morphology and size of the M@V composite structure, and the strategy is applicable to copolymer systems with wide range of hydrophobic/hydrophilic volume ratios. This work provides new insights into topology-regulated polymer co-assembly and offers a useful strategy for the design of hierarchical and multifunctional polymer materials.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 9","pages":"2982 - 2989"},"PeriodicalIF":4.6,"publicationDate":"2026-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biodegradable Alginate-based Fibers with High Mechanical Performance and Aqueous Stability via Stretch-mediated Network Engineering","authors":"Han-Xu Zhou,&nbsp;Ling-Chun Liu,&nbsp;De-Shuai Kong,&nbsp;Hua Yuan,&nbsp;Cong Du","doi":"10.1007/s10118-026-3671-0","DOIUrl":"10.1007/s10118-026-3671-0","url":null,"abstract":"<div><p>Seaweed polysaccharide-based fibers featuring incomparable merits, such as green fabrication procedures and intrinsic functionalities, are promising sustainable alternatives to petrochemical fibers that threaten both the ecological environment and human health. However, achieving simultaneously high strength, toughness, and stability of seaweed polysaccharide fibers remains a long-standing challenge owing to their low crystallinity and ionic crosslinks. Herein, we report a stretch-mediated network engineering strategy to overcome this limitation. Anisotropic architectures composed of dual-crosslinked sodium alginate and chemically crosslinked poly(vinyl alcohol) are prepared by pre-stretching. The highly ordered chemically crosslinked networks endow the fibers with high strength, and the anisotropic double networks prevent stress concentration and enable high toughness. The resultant fibers exhibit a tensile strength of 547.8 MPa, Young’s modulus of 17.6 GPa, and toughness of 43.3 MJ/m³, surpassing most regenerated biomass fibers. Additionally, fibers with an anisotropic network exhibit good aqueous stability, guaranteeing their usage in diverse solution environments and potential applications in triboelectric textiles. This study demonstrates a general and scalable strategy to decouple the strength–toughness trade-off in polysaccharide fibers without sacrificing biodegradability, thereby providing new insights into the structural design of robust, stable, and sustainable biomass-based fibers.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 8","pages":"2513 - 2523"},"PeriodicalIF":4.6,"publicationDate":"2026-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148305658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Micro-sized Silicon Carbonitride Prepared by Radical Polymerization as a High-performance Anode Material for Lithium-ion Batteries","authors":"Xin Xia,&nbsp;Zhen-Peng Zhang,&nbsp;De-Shuo Wang,&nbsp;Yi-Han Li,&nbsp;Jing-Jiang Sun,&nbsp;Jian-Jiang He,&nbsp;Qing-Fu Wang,&nbsp;Wei Zhao","doi":"10.1007/s10118-026-3659-9","DOIUrl":"10.1007/s10118-026-3659-9","url":null,"abstract":"<div><p>To address the critical issue of volume expansion in silicon-based anode materials and enhance battery performance, a novel method for synthesizing microsized silicon carbonitride (SiCNO) ceramic particles was presented as a high-performance anode material for lithium-ion batteries. SiCNO ceramic microspheres were prepared <i>via</i> high-temperature pyrolysis of organopolysilazane microspheres (OPSZ MPs), which were synthesized <i>via</i> free radical polymerization of silazane oligomers initiated by azobisisobutyronitrile (AIBN). The SiCNO microspheres, serve as the active materials in lithium-ion batteries anode, demonstrated excellent electrochemical performance with an initial discharge-specific capacity of 1663.3 mAh·g⁻¹ and 622.9 mAh·g⁻¹ after 400 cycles at 1 A·g⁻¹. These microspheres exhibited superior structural stability during the lithiation and delithiation processes, with a volume expansion of 25.46% during cycling. The enhanced performance can be attributed to their regular spherical structures and larger specific surface area, which improve the ion/electron transport and stress distribution. This study highlights the potential of synthesizing and regulating the morphology of SiCNO particles to improve the performance of anode materials for lithium-ion batteries, providing a balance between high electrochemical activity and structural stability.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 8","pages":"2659 - 2669"},"PeriodicalIF":4.6,"publicationDate":"2026-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148781964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modulating Water Binding in Branched Poly(terphenylene 3-piperidinium) Anion Exchange Membranes for High-performance Water Electrolysis","authors":"Zhen-Jiang Yan,&nbsp;Bo Li,&nbsp;Chen-Xi Wang,&nbsp;Lan Zhang,&nbsp;Heng Wang,&nbsp;Hai-Bing Wei,&nbsp;Yun-Sheng Ding","doi":"10.1007/s10118-026-3663-0","DOIUrl":"10.1007/s10118-026-3663-0","url":null,"abstract":"<div><p>Anion exchange membranes (AEMs) are central to clean energy technologies such as AEM water electrolysis, and clarifying how water binding and solvation govern ion transport and membrane swelling is critical to advancing their performance. Here, using a distorted, five-site branching agent, dispiro[fluorene-9,1′-3′-methylenecyclohexane-5′,9″-fluorene] (SFCF), we report branched poly(terphenylene 3-piperidinium) membranes that combine strong water binding with efficient ion transport. Upon polymer branching, the membranes exhibit a higher fraction of bound water and increased local molecular mobility while absorbing only half as much water as the linear analog. As a result, the optimized B-<i>i</i>PTP-3 delivers a high conductivity of 186 mS·cm⁻¹ at 80 °C with a low 56 wt% water uptake and less than 15% swelling. In addition, by isomeric piperidinium chemistry, the membrane shows excellent alkaline stability in 1 mol·L⁻¹ aq. NaOH, with no degradation after a 2000-h soaking at 80 °C. An AEM water electrolyzer equipped with the branched membrane achieves a high current density of up to 10.4 A·cm⁻² at 2 V. Moreover, the electrolyzer can operates stably at 1.0 A·cm⁻² for 1000 h with a voltage decay of 95 µV·h⁻¹, without increased hydrogen crossover. This work high-lights a branching-enabled design strategy for tuning water binding and solvation to realizing high performance, durable AEMs for clean energy devices.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 8","pages":"2502 - 2512"},"PeriodicalIF":4.6,"publicationDate":"2026-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148781974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bismaleimide Dielectric Films with Superior High-temperature Breakdown Strength via a Rationally Designed Crosslinked Network for Embedded Film Capacitors","authors":"Li-Na Huang,&nbsp;Li Tan,&nbsp;Shuang-Wu Huang,&nbsp;Gu-Qiao Ding,&nbsp;Qi-Yan Zhang","doi":"10.1007/s10118-026-3741-3","DOIUrl":"10.1007/s10118-026-3741-3","url":null,"abstract":"<div><p>The growing demand for higher operating frequencies, faster speeds, and greater power density in modern electronics has positioned embedded dielectric film capacitors as a key enabler of system miniaturization and enhanced reliability. However, such integration requires dielectric materials that exhibit both high intrinsic breakdown strength and superior high-temperature stability, a combination which is seldom achieved by conventional polymer dielectrics. In this work, we present a rationally designed rigid-flexible crosslinked network based on bismaleimide (BMI) that delivers robust performance under extreme electrical and thermal conditions. By co-curing a biphenyl epoxy (BPEP) resin with a 2,2-bis[4-(4-maleimidophenoxy)phenyl]propane (BMP)-based BMI matrix, a densely co-crosslinked network is formed. In this network, BPEP acts as a toughening agent that mitigates internal stress and inhibits micro-crack initiation, while its rigid biphenyl motifs cooperate with BMP to establish deeper charge traps, thereby effectively suppressing charge carrier excitation and transport. These synergistic mechanisms enable the optimized co-cured BMP/10%BPEP film to achieve a leakage current more than ten times lower than that of pristine BMP at 200 °C, along with a remarkable increase in breakdown strength from 509 MV/m to 615 MV/m and a rise in dielectric constant from 3.45 to 3.71. Consequently, the film exhibits an outstanding discharge energy density of 4.59 J/cm³ with 90% efficiency at 200 °C, as well as excellent cycling stability over 50000 charge-discharge cycles. This study offers a feasible material design strategy for high-performance polymer dielectrics suitable for embedded capacitors in advanced electronic packaging.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 8","pages":"2561 - 2569"},"PeriodicalIF":4.6,"publicationDate":"2026-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148781975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Processable Main-chain Benzoxazine Resin Derived from Daidzein with Intrinsic Flame Retardancy","authors":"Chao-Fan Hu,&nbsp;Jin-Yue Dai,&nbsp;Jing-Kai Liu,&nbsp;Shuai-Peng Wang,&nbsp;Li Jia,&nbsp;Hui Zhang,&nbsp;Xiao-Qing Liu","doi":"10.1007/s10118-026-3676-8","DOIUrl":"10.1007/s10118-026-3676-8","url":null,"abstract":"<div><p>The development of intrinsically flame-retardant, low-smoke, low-toxicity, and halogen-free polymers represents a critical challenge. In this study, bio-based daidzein was employed as a partial phenolic source, and a series of main-chain benzoxazine resins (Dz-Ph-ddm) was synthesized <i>via</i> Mannich condensation with phenol, 4,4′-diaminodiphenylmethane, and paraformaldehyde. The effects of daidzein content on the thermal stability, flame retardancy, mechanical properties, and char-forming behavior of cured resins were investigated. The results indicate that the rigid aromatic structure and benzopyranone unit of daidzein significantly promoted the formation of a dense and continuous char layer, achieving gas- and condensed-phase synergistic flame retardancy. With 20 mol% of daidzein addition, the resin exhibited a glass transition temperature (<i>T</i>_g) of 259.6 °C, the char yield at 800 °C increased by 42.5% compared to the control group, a UL-94 V-0 rating, and a 30.9% reduction in total heat release (THR) in cone calorimetry tests. The glass fiber-reinforced composite prepared using this resin as the matrix showed a 100.6% improvement in impact strength, with flexural and compressive strengths reaching 748.4 and 340.8 MPa, respectively. Moreover, it demonstrated good fire safety performance even in an 80 kPa low-pressure combustion environment. This work provides a facile strategy for the preparation of high-performance eco-friendly flame-retardant composites.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 8","pages":"2637 - 2647"},"PeriodicalIF":4.6,"publicationDate":"2026-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148781976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soft-segment-engineered Self-healing Polyurethane for High-performance Electrorheological Elastomers and Capacitive Sensors","authors":"Yan-Bo Yang,&nbsp;Yao Wan,&nbsp;Zi-Xuan Zhang,&nbsp;Zhen-Jie Zhao,&nbsp;Yong-Ri Liang,&nbsp;Hyoung Jin Choi,&nbsp;Ying-Dan Liu","doi":"10.1007/s10118-026-3644-3","DOIUrl":"10.1007/s10118-026-3644-3","url":null,"abstract":"<div><p>Polyurethane (PU) holds promise as a matrix for electrorheological elastomers (EREs) because of its excellent mechanical properties; however, its high modulus often limits electrorheological (ER) efficiency. This study addresses this by tailoring the soft-segment architecture of PU to adjust its mechanical and dielectric properties, thus improving the ER response of the PU-based ERE. Dynamic covalent bonds have also been introduced to enable self-healing. Using poly(propylene glycol) (PPG), poly(tetramethylene glycol) (PTMG), and polycaprolactone (PCL) as the soft segments, we fabricated EREs with 20 wt% TiO₂. The resulting PPG-ERE exhibited an outstanding ER effect of 229.4% at 3 kV/mm, along with a high stretchability (1835% elongation) and tensile strength of 3.6 MPa. PTMG-ERE has the highest storage modulus of 1.43 MPa at 3 kV/mm and a relatively high tensile strength of up to 6.5 MPa, which is attributed to enhanced hydrogen bonding interactions among the regular PTMG segments. The PCL-ERE with the highest Young’s modulus resulted in the lowest ER efficiency of 48% because of its high crystallization tendency. The PPG-ERE also demonstrated efficient self-healing, recovering 79% of its mechanical strength after 12 h at room temperature. When applied in a capacitive pressure sensor, the PPG-ERE showed a fast response (220 ms) and recovery (90 ms), detecting forces as low as 3 N. This study provides a practical strategy for designing high-performance multifunctional EREs through soft-segment engineering and dynamic bonding.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 7","pages":"2269 - 2281"},"PeriodicalIF":4.6,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148465169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On-demand Peelable UV-curable Adhesives with Superior Bonding Strength: Rational Molecular Engineering of Cohesion-adhesion Synergy","authors":"Wen-Qian Liu,&nbsp;Peng Wang,&nbsp;Hao-Kai Yuan,&nbsp;Lin Zhang,&nbsp;Bin Chen,&nbsp;Hong-Fei Jiang,&nbsp;Yi-Ran Wang,&nbsp;Lu Wang,&nbsp;Shu-Sheng Li,&nbsp;Chuan-Yong Zong","doi":"10.1007/s10118-026-3677-7","DOIUrl":"10.1007/s10118-026-3677-7","url":null,"abstract":"<div><p>On-demand peelable adhesives represent a pivotal green chemistry research avenue; however, they confront a critical challenge in reconciling robust interfacial bonding strength with efficient peelability. Herein, a cohesion-adhesion synergy-guided molecular engineering strategy was developed to fabricate UV-curable adhesives with the integrated properties of superior bonding strength and hot water-triggered peelability. The adhesive was formulated with custom-synthesized difunctional polyurethane acrylate (PM1) as the crosslinker, which was blended with complementary acrylate monomers. PM1 constructed a robust yet adaptable crosslinking network to ensure high cohesive strength; its polytetrahydrofuran diol- and polyester diol-derived soft segments endowed the network with superior molecular chain mobility and stress dissipation capacity. Additionally, the incorporation and compositional optimization of polar acrylate monomers modulate the cohesive energy, surface wettability, and interfacial adhesion of the substrate, thus realizing synergistic enhancement of the cohesive and adhesive properties. Systematic experimental investigations and molecular dynamics simulations were conducted to determine the structure-property relationships governing the composition, bonding performance, and mechanical properties of UV-curable adhesives. The optimized formulation achieved high shear strength (&gt;5 MPa, glass substrates), excellent mechanical properties (tensile strength: 12.80 MPa, elongation at break: 313.70%), and good thermal stability (5 wt% weight-loss temperature &gt; 240 °C). Notably, the developed adhesives realize rapid, complete, and residue-free debonding within 3 min of immersion in 60 °C water, where hydration-induced disruption of adhesive-substrate contact attenuates interfacial interactions. Additionally, the peeled adhesive can be recycled repeatedly after drying while retaining its excellent interfacial bonding performance. This study provides a versatile and scalable strategy for the rational design of high-performance functional adhesives, thereby paving the way for recycling electronic products and sustainable manufacturing.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 9","pages":"3053 - 3065"},"PeriodicalIF":4.6,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regulation of Microphase Separation in Bio-based Thermoplastic Polyurethanes Driven by Hard Segment Content","authors":"De-Xian Yin,&nbsp;Yu-Qiong Hu,&nbsp;Ya-Nan Cheng,&nbsp;Shuo Yan,&nbsp;Zi-Lin Liu,&nbsp;Yi-Qing Wang,&nbsp;Shi-Kai Hu,&nbsp;Xiu-Ying Zhao","doi":"10.1007/s10118-026-3668-8","DOIUrl":"10.1007/s10118-026-3668-8","url":null,"abstract":"<div><p>Regulation of the microphase-separated structure is critical for high-performance thermoplastic polyurethanes (TPUs). To address the limitations of poor heat resistance and reliance on petrochemical resources in traditional TPUs, bio-based TPUs were engineered using rigid 1,4-phenylene diisocyanate and bio-based poly(trimethylene ether) glycol. The results demonstrate that microstructural evolution, hydrogen bonding network formation, and tailoring of macroscopic properties in TPUs can be realized by varying the hard segment content. Increasing the hard segment content enhanced microstructural ordering, boosting the tensile strength from 6.1 MPa to 22.6 MPa while maintaining an elongation at break above 600%. Crucially, the robust crystalline network enhanced thermal stability of the TPUs, resulting in a maximum 5% thermal deformation temperature of 230.2 °C for TPUs. This work elucidates the structure-property relationships governing microphase separation, empowering the rational design of bio-based materials with exceptional toughness and thermal resistance.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"44 8","pages":"2748 - 2757"},"PeriodicalIF":4.6,"publicationDate":"2026-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148782269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}