Polymer Science, Series B最新文献

筛选
英文 中文
Controlled Radical Polymerization of Methacrylic Monomers in the Presence of 10-(1-Naphthyl)Phenothiazine as an Organic Photocatalyst 甲基丙烯酸单体在10-(1-萘基)吩噻嗪有机光催化剂下的可控自由基聚合
IF 1 4区 化学
Polymer Science, Series B Pub Date : 2026-05-02 DOI: 10.1134/S1560090426600403
N. A. Kaltenberg, I. D. Grishin
{"title":"Controlled Radical Polymerization of Methacrylic Monomers in the Presence of 10-(1-Naphthyl)Phenothiazine as an Organic Photocatalyst","authors":"N. A. Kaltenberg,&nbsp;I. D. Grishin","doi":"10.1134/S1560090426600403","DOIUrl":"10.1134/S1560090426600403","url":null,"abstract":"<p>A promising direction in the field of controlled polymer synthesis is photopolymerization via the organocatalyzed atom transfer radical polymerization (O-ATRP), which relies on the use of metal-free organic catalysts. The application of organic compounds as catalysts not only reduces the environmental impact but also enables the use of the obtained polymeric materials in industrial sectors sensitive to trace amounts of metals. Traditionally, heteroaromatic polycyclic compounds with an extended conjugated π-bond system, particularly aryl-substituted phenothiazines, are used as O-ATRP catalysts. This work investigated the possibility of polymerizing a series of methacrylic monomers via the O-ATRP mechanism in the presence of 10-(1-naphthyl)phenothiazine as a catalyst and various bromine-containing initiators under irradiation with 365 nm light. It was shown that the polymerization process is accompanied by an increase in the polymer molecular weight with conversion. The number-average molecular weights are consistent with theoretically calculated values. The use of a bifunctional initiator, ethylene bis(2-bromoisobutyrate), allows for the controlled synthesis of polymers with various molecular weights. The possibility of using the obtained polymer samples as macroinitiators for post-polymerization and block copolymerization, catalyzed by 10-(1-naphthyl)phenothiazine under UV irradiation, was demonstrated.</p>","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":"68 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis of Graft Copolymers of Chitosan with Acrylic Acid and Their Use as Superabsorbents 壳聚糖-丙烯酸接枝共聚物的合成及其高吸水性研究
IF 1 4区 化学
Polymer Science, Series B Pub Date : 2026-05-02 DOI: 10.1134/S1560090425601189
V. O. Kudyshkin, M. Yu. Zaremski, Z. M. Abrarova, N. I. Bozorov, M. M. Usmanova
{"title":"Synthesis of Graft Copolymers of Chitosan with Acrylic Acid and Their Use as Superabsorbents","authors":"V. O. Kudyshkin,&nbsp;M. Yu. Zaremski,&nbsp;Z. M. Abrarova,&nbsp;N. I. Bozorov,&nbsp;M. M. Usmanova","doi":"10.1134/S1560090425601189","DOIUrl":"10.1134/S1560090425601189","url":null,"abstract":"<p>Grafted copolymers of chitosan and acrylic acid with a three-dimensional structure were synthesized by a radical mechanism in the presence of potassium persulfate as an initiator. Calorimetric studies have shown that the rate of copolymerization does not depend on the concentration of chitosan. It has been shown that in the presence of a polysaccharide, the enthalpy of polymerization of acrylic acid increases in absolute value, which is probably related to a decrease in the reactivity of the monomer while simultaneously increasing the reactivity of the corresponding radical. Water absorption studies have shown that the obtained materials have superabsorbent properties and can be recommended for use as environmentally friendly water-absorbing materials.</p>","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":"68 2","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Copolymers of 2,2-Diallyl-1,1,3,3-tetraethylguanidinium Chloride with Ethylene Glycol Vinyl Ether and Their Functionalization by Biologically Active Acids 2,2-二烯丙基-1,1,3,3-四乙基氯化胍与乙二醇乙烯基醚的共聚物及其生物活性酸的功能化
IF 1 4区 化学
Polymer Science, Series B Pub Date : 2026-05-02 DOI: 10.1134/S1560090426600361
M. N. Gorbunova, S. Yu. Balandina
{"title":"Copolymers of 2,2-Diallyl-1,1,3,3-tetraethylguanidinium Chloride with Ethylene Glycol Vinyl Ether and Their Functionalization by Biologically Active Acids","authors":"M. N. Gorbunova,&nbsp;S. Yu. Balandina","doi":"10.1134/S1560090426600361","DOIUrl":"10.1134/S1560090426600361","url":null,"abstract":"<p>Copolymers of 2,2-diallyl-1,1,3,3-tetraethylguanidinium chloride with ethylene glycol vinyl ether have been synthesized by radical copolymerization in the presence of a radical initiator azobisobutyronitrile. It has been established that, regardless of the medium (in bulk or in ethanol), 2,2-diallyl-1,1,3,3-tetraethylguanidinium chloride is more reactive in the reaction of copolymerization with ethylene glycol vinyl ether, therefore, at any composition of the initial monomers mixture, the copolymers have been enriched with guanidinium units. An increase in the fraction of ethylene glycol vinyl ether in the starting monomers mixture has led to noticeable deceleration of the copolymerization, regardless of the medium. New polymeric salts have been prepared under the action of biologically active acids (benzoic acid or ampicillin) on the copolymer. The structure and antimicrobial properties of the polymeric products have been studied.</p>","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":"68 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Oligourethane Urea Methacrylates Based on tert-Butylaminoethylmethacrylate for Photopolymer 3D Printing 基于叔丁基氨基甲基丙烯酸乙酯的光聚合物3D打印低聚聚氨酯脲甲基丙烯酸酯
IF 1 4区 化学
Polymer Science, Series B Pub Date : 2026-05-02 DOI: 10.1134/S1560090426600385
Yu. G. Rudenko, N. V. Fedyakova, M. V. Bermeshev, P. P. Chapala
{"title":"Oligourethane Urea Methacrylates Based on tert-Butylaminoethylmethacrylate for Photopolymer 3D Printing","authors":"Yu. G. Rudenko,&nbsp;N. V. Fedyakova,&nbsp;M. V. Bermeshev,&nbsp;P. P. Chapala","doi":"10.1134/S1560090426600385","DOIUrl":"10.1134/S1560090426600385","url":null,"abstract":"<p>The production of soft and flexible products using photopolymer printing in a vat allows for the rapid production of customized products at low cost. However, according to recent research, the resulting materials do not have high strength characteristics. In this work, we investigated the targeted synthesis of oligourethane methacrylates and the influence of their structures on the technological parameters of the vat photopolymerization process. For this purpose, a series of oligomers based on <i>tert</i>-butylaminoethyl methacrylate were synthesized using various isocyanates. The reactivity, viscosity and strength characteristics of materials based on the obtained compounds were studied, and the self-healing ability was also assessed. The nature of the deblocking of isocyanate groups was confirmed using DSC and FTIR spectroscopy methods. Using <i>tert</i>-butylaminoethyl methacrylate and a chain extending agent (diaminodicyclohexylmethane) made it possible to increase the tensile strength σ<sub>tens</sub> up to 9 MPa with a relative elongation at break ε of about 300%. The use of OH-containing chain extending agents ensured that ε exceeded 600%. The developed approaches allow for the targeted creation of light-curing compositions for photopolymer printing, combining high printing speed and the required mechanical properties of products.</p>","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":"68 2","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Controlled Radical Polymerization of N-Isopropylacrylamide in Supercritical Carbon Dioxide n -异丙基丙烯酰胺在超临界二氧化碳中的可控自由基聚合
IF 1 4区 化学
Polymer Science, Series B Pub Date : 2026-05-02 DOI: 10.1134/S1560090426600233
A. A. Popova, V. F. Lisina, A. V. Plutalova, E. N. Golubeva, E. V. Chernikova
{"title":"Controlled Radical Polymerization of N-Isopropylacrylamide in Supercritical Carbon Dioxide","authors":"A. A. Popova,&nbsp;V. F. Lisina,&nbsp;A. V. Plutalova,&nbsp;E. N. Golubeva,&nbsp;E. V. Chernikova","doi":"10.1134/S1560090426600233","DOIUrl":"10.1134/S1560090426600233","url":null,"abstract":"<p>For the first time, the controlled synthesis of poly(<i>N</i>-isopropylacrylamide) has been performed in supercritical carbon dioxide via reversible addition-fragmentation chain transfer radical polymerization in the temperature range of 55–70°C. It has been demonstrated that there is a range of CO<sub>2</sub> pressures (91–229 bar), in which a polymer with a dispersity below 1.3 can be synthesized in the entire range of monomer conversions, with the number-average molecular weight of the polymer increasing linearly with conversion. As the pressure increases, control over the molecular weight characteristics of the polymer is lost due to separation of the system into two phases; the RAFT mechanism proceeds in one phase, and the conventional radical polymerization mechanism takes place in the second one. These patterns are characteristic of the three trithiocarbonates (dibenzyl trithiocarbonate, S,S'-bis(methyl-2-isobutyrate) trithiocarbonate, and (2‑dodecylthiocarbonothioylthio)-2-methylpropionic acid) and one dithiobenzoate (2-nitro-5-(2-propyl-yloxy)benzyl-4-cyano-4-phenylcarbonothioylthio)pentanoate) studied in the work.</p>","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":"68 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Controlled Radical Homo- and Copolymerization of Styrene with Acrylonitrile Under Conditions of ARGET ATRP ARGET ATRP条件下苯乙烯与丙烯腈的可控自由基Homo-共聚反应
IF 1 4区 化学
Polymer Science, Series B Pub Date : 2026-05-02 DOI: 10.1134/S1560090426600373
Yu. A. Kuznetsova, I. D. Grishin
{"title":"Controlled Radical Homo- and Copolymerization of Styrene with Acrylonitrile Under Conditions of ARGET ATRP","authors":"Yu. A. Kuznetsova,&nbsp;I. D. Grishin","doi":"10.1134/S1560090426600373","DOIUrl":"10.1134/S1560090426600373","url":null,"abstract":"<p>The features of controlled radical polymerization of styrene and its copolymerization with acrylonitrile, proceeding by the atom transfer mechanism under the action of catalytic systems simultaneously containing two copper complexes (CuBr<sub>2</sub>/TPMA and CuBr<sub>2</sub>/Me<sub>6</sub>TREN), have been investigated. The possibility of using low concentrations of the catalyst and the use of sodium potassium tartrate (Rochelle salt), as well as isopropylamine as reducing agents, in the controlled synthesis of the (co)polymers has been evaluated. It has been established that the proposed systems can effectively catalyze the polymerization of styrene and its copolymerization with acrylonitrile. The course of polymerization is accompanied by a linear increase in the molecular weight of samples with conversion, which is characteristic of controlled radical polymerization processes. It has been shown that polar solvents should be used for the process to be efficient. The optimal catalytic systems that allow the process to be carried out at high rate while maintaining control over the process have been identified.</p>","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":"68 2","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of the Type of Catalyst of Non-hydrolytic Condensation on the Structure of Phenyl-Thiol-Siloxane Oligomers and the Properties of the Photocured Acrylate-Phenyl-Thiol-Siloxane Materials 非水解缩合催化剂类型对苯基-硫醇-硅氧烷低聚物结构及光固化丙烯酸-苯基-硫醇-硅氧烷材料性能的影响
IF 1 4区 化学
Polymer Science, Series B Pub Date : 2026-05-02 DOI: 10.1134/S1560090426600221
D. I. Derevyanko, S. I. Aliev, V. V. Shelkovnikov, I. K. Shundrina, N. A. Orlova, A. A. Chernonosov, A. V. Lastovka, D. E. Kapustina
{"title":"Influence of the Type of Catalyst of Non-hydrolytic Condensation on the Structure of Phenyl-Thiol-Siloxane Oligomers and the Properties of the Photocured Acrylate-Phenyl-Thiol-Siloxane Materials","authors":"D. I. Derevyanko,&nbsp;S. I. Aliev,&nbsp;V. V. Shelkovnikov,&nbsp;I. K. Shundrina,&nbsp;N. A. Orlova,&nbsp;A. A. Chernonosov,&nbsp;A. V. Lastovka,&nbsp;D. E. Kapustina","doi":"10.1134/S1560090426600221","DOIUrl":"10.1134/S1560090426600221","url":null,"abstract":"<p>Thiol-siloxane oligomers have been produced via the sol-gel process using three different catalysts: barium hydroxide monohydrate, trimethoxyboroxine, and an ammonium salt based on triethylamine and boric acid. The synthesized oligomers have been studied by NMR spectroscopy and mass spectrometry. It has been found that the topology of the resulting oligomers differs depending on the type of catalyst used, and these oligomers are resistant to hydrolytic condensation. Elastic films of hybrid organic-inorganic polymer based on the tetraacrylate monomer and the thiol-siloxane oligomers have been obtained via photopolymerization. The viscoelastic and optical properties of the photopolymer films have been studied, and it has been revealed that the topology of the thiol-siloxane oligomers affects the properties of the hybrid polymer. The values of the modulus of elasticity (0.37–0.48 GPa), glass transition temperature (53–72°C), and refractive index (1.58) of the photocured hybrid films based on different thiol-siloxane oligomers have been determined.</p>","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":"68 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and Characterization of Poly(Fluoro-Aryl-Thiazole) Copolymers: Thermal, Spectroscopic Properties, and Application in Thorium and Aluminum Ions Detection from Aqueous Solutions 聚氟芳基噻唑共聚物的合成与表征:热、光谱性质及其在水溶液中检测钍和铝离子中的应用
IF 1 4区 化学
Polymer Science, Series B Pub Date : 2026-05-02 DOI: 10.1134/S1560090425600640
Suha Al-Tarawneh, Ahmad Zeidan
{"title":"Synthesis and Characterization of Poly(Fluoro-Aryl-Thiazole) Copolymers: Thermal, Spectroscopic Properties, and Application in Thorium and Aluminum Ions Detection from Aqueous Solutions","authors":"Suha Al-Tarawneh,&nbsp;Ahmad Zeidan","doi":"10.1134/S1560090425600640","DOIUrl":"10.1134/S1560090425600640","url":null,"abstract":"<p>New poly(fluoro-aryl-thiazole) copolymers were synthesized through polycondensation polymerization between aryl-aldehydes (featuring naphthalene, benzene, thiophene, and biphenyl linkers) and dithiooxamide. The successful formation of the polymers was confirmed using spectroscopic techniques, including <sup>1</sup>H and <sup>13</sup>C NMR, solid-state <sup>13</sup>C NMR (CP-MAS), and FTIR. Incorporating thiazole units into the polymer structure increases the sulfur and nitrogen content within the framework. This modification significantly enhances the polymers' thermal stability, as thermogravimetric analysis demonstrates. Additionally, the polymers show improved efficiency in separating Th(IV) and Al(III) ions from aqueous solutions.</p>","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":"68 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preparation and Performance Study of Epoxy Resin Modified Polysiloxane Self-healing Materials 环氧树脂改性聚硅氧烷自愈材料的制备及性能研究
IF 1 4区 化学
Polymer Science, Series B Pub Date : 2026-03-31 DOI: 10.1134/S1560090426600208
Zichen Zhang, Qingsheng Deng, Xinmei Yan, Haipeng Zou, Guanghao Chen, Yan Jiang, Hongwen Zhang
{"title":"Preparation and Performance Study of Epoxy Resin Modified Polysiloxane Self-healing Materials","authors":"Zichen Zhang,&nbsp;Qingsheng Deng,&nbsp;Xinmei Yan,&nbsp;Haipeng Zou,&nbsp;Guanghao Chen,&nbsp;Yan Jiang,&nbsp;Hongwen Zhang","doi":"10.1134/S1560090426600208","DOIUrl":"10.1134/S1560090426600208","url":null,"abstract":"<p>Polysiloxane materials possess excellent properties such as flexibility and chemical stability. However, due to the low cohesive energy density within the polysiloxane and the lack of polarity in the polymer chains, their mechanical properties are poor, which limits their application in the self-healing field. This paper uses polysiloxane materials to prepare self-healing elastomers by incorporating epoxy resin. Firstly, end amino polysiloxane is prepared by in situ polymerization, and then it is modified with epoxy resin, followed by the introduction of the salicylaldehyde and zinc acetate system. Through orthogonal experiments, the optimal ratio of epoxy resin modified polysiloxane self-healing material was determined: the mass ratio of PDMS : EP is 10 : 6, PDMS : SA is 10 : 1, and SA : Zn (OAc)<sub>2</sub> is 1 : 0.2. The fracture elongation ratio reaches 700%. The results show that, under an observation with a polarizing microscope at 80°C, materials with a low crosslinking density and moderate epoxy resin content have excellent self-healing ability. The antibacterial adhesion analysis proves that the polysiloxane with Zn<sup>2+</sup> introduced on the surface has certain antibacterial adhesion performance with the epoxy resin system. This work provides ideas for the application of functionalized polysiloxane materials in new fields.</p>","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":"67 6","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147579665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chain Extension of PDLLA with 4,4'-Methylene diphenyl diisocyanate and Its Degradation Performance PDLLA - 4,4′-亚甲基二苯基二异氰酸酯扩链及其降解性能研究
IF 1 4区 化学
Polymer Science, Series B Pub Date : 2026-03-31 DOI: 10.1134/S156009042660021X
Guorong Liu, Zicheng Wen, Jianning Wu, Zhiyong Liu, Junlin Liu
{"title":"Chain Extension of PDLLA with 4,4'-Methylene diphenyl diisocyanate and Its Degradation Performance","authors":"Guorong Liu,&nbsp;Zicheng Wen,&nbsp;Jianning Wu,&nbsp;Zhiyong Liu,&nbsp;Junlin Liu","doi":"10.1134/S156009042660021X","DOIUrl":"10.1134/S156009042660021X","url":null,"abstract":"<p>In this paper, PDLLA was end-capped with 1,4-butanediol to control hydroxyl groups, ensuring a 1 : 1 NCO/OH ratio for MDI chain extension.The chemical degradation, hydrolytic stability, and thermal and mechanical properties of poly(D,L-lactic acid) (PDLLA), as well as its extended polymer obtained by reacting with 4,4'-methylene diphenyl diisocyanate (MDI), were improved. The resulting samples were characteriяed by Fourier transform infrared spectroscopy (FTIR). Thermal properties were measured using differential scanning calorimetry and thermogravimetric analysis. Tensile properties were also measured with a tensile tester. Results showed that when the molar ratio of NCO/OH was 1 : 1, <i>T</i>\u0000\t\t\t\t\t\t<sub>g</sub> can be increased from the original 54 to 60°C. The weight loss temperature of 4,4'-methylene diphenyl diisocyanate chaining PDLLA was also enhanced from 10 to 190°C. Tensile strength increased from 19.00 to 39.00 MPa. Hydrolytic stability was approximately 1.5 times that of pure PDLLA. In this manner, PDLLA materials with excellent mechanical properties, thermal stability, and degradation resistance of poly(lactic acid) material were easily obtained.</p>","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":"67 6","pages":""},"PeriodicalIF":1.0,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147579666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信
小红书