Designed Monomers and Polymers最新文献_第8页

Ultrasonic helical coil electrochemical reactor for simultaneous electrolysis-sonification-electrochemical polymerization, and applications for pollen cleaning. 用于同时电解-超声-电化学聚合的超声螺旋线圈电化学反应器及其在花粉清洗中的应用。

IF 1.6 4区化学

Designed Monomers and Polymers Pub Date : 2021-11-17 eCollection Date: 2021-01-01 DOI: 10.1080/15685551.2021.2003557

Kyoka Komaba, Hiromasa Goto

引用次数: 3

Donor-acceptor-donor (D-A-D) structural monomers as donor materials in polymer solar cells: a DFT/TDDFT approach. 聚合物太阳能电池中作为供体材料的供体-受体-供体（D-A-D）结构单体：DFT/TDDFT方法。

IF 1.6 4区化学

Designed Monomers and Polymers Pub Date : 2021-11-08 DOI: 10.1080/15685551.2021.1997178

Numbury Surendra Babu

引用次数: 2

Preparation of photoactive ZnS-composite porous polymer films: Fluorescent and morphological properties. 光活性 ZnS 复合多孔聚合物薄膜的制备：荧光和形态特性。

IF 1.6 4区化学

Designed Monomers and Polymers Pub Date : 2021-10-13 eCollection Date: 2021-01-01 DOI: 10.1080/15685551.2021.1989151

Guadalupe Del C Pizarro, Wilson Alavia, Rudy Martin-Trasanco, Oscar G Marambio, Julio Sánchez, Diego P Oyarzún

{"title":"Preparation of photoactive ZnS-composite porous polymer films: Fluorescent and morphological properties.","authors":"Guadalupe Del C Pizarro, Wilson Alavia, Rudy Martin-Trasanco, Oscar G Marambio, Julio Sánchez, Diego P Oyarzún","doi":"10.1080/15685551.2021.1989151","DOIUrl":"10.1080/15685551.2021.1989151","url":null,"abstract":"This work describes the use of the breath figure (BF) method for the fabrication of photoactive porous polymer films and the characterization of their responsive to photo stimulus. The films incorporate self-assembled photoactive polymers and ZnS nanoparticles (NPs). The effect of both components on the optical and morphological properties of the films were analyzed. Films with a hexagonally ordered pattern were obtained. The photoactive polymer was prepared by grafting the photochromic component 1-(2-hydroxyethyl)-3,3-dimethylindoline-6-nitrobenzopyran (SP) to polystyrene-block-polymethacrylic acid (PS-b-PMMA). ZnS NPs were incorporated into the polymer solution, and the films were prepared using spin-coating on glass substrates before subjecting them to the BF method. The hollow footprints were obtained before introducing the ZnS NPs in order to maintain the necessary conditions for hexagonal film growth. Accordingly, the SEM micrographs of the films prepared in the presence of ZnS NPs displayed a loss in the pore arrangement as a consequence of the interaction between SP moiety and NPs. The light-emitting properties of films were characterized by blue and violet colors when exposed to UV light under fluorescence. Progress in the field of breath-figure formation and its application, such as exemplified in this work, leads to functional structures with suitable applications in chemistry and materials science. It is expected that such microstructured polymeric films will have interesting applications in photonic and optoelectronic devices.","PeriodicalId":11170,"journal":{"name":"Designed Monomers and Polymers","volume":"24 1","pages":"320-329"},"PeriodicalIF":1.6,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8519547/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39526890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation and in vivo/in vitro characterization of Ticagrelor PLGA sustained-release microspheres for injection. 注射用替格瑞洛PLGA缓释微球的制备及体内外表征。

IF 1.6 4区化学

Designed Monomers and Polymers Pub Date : 2021-10-08 eCollection Date: 2021-01-01 DOI: 10.1080/15685551.2021.1984008

Linkun Hao, Yunying Jiang, Ru Zhang, Ningning Zhang, Yang Yang, Ying Gao, Yimin Song

引用次数: 2

Polyglutamic acid grafted dopamine modified collagen-polyvinyl alcohol hydrogel for a potential wound dressing. 聚谷氨酸接枝多巴胺改性胶原-聚乙烯醇水凝胶，可用于伤口敷料。

IF 1.6 4区化学

Designed Monomers and Polymers Pub Date : 2021-09-28 eCollection Date: 2021-01-01 DOI: 10.1080/15685551.2021.1984007

Guofei Yu, Changkai Yang, Nianhua Dan, Weihua Dan, Yining Chen

{"title":"Polyglutamic acid grafted dopamine modified collagen-polyvinyl alcohol hydrogel for a potential wound dressing.","authors":"Guofei Yu, Changkai Yang, Nianhua Dan, Weihua Dan, Yining Chen","doi":"10.1080/15685551.2021.1984007","DOIUrl":"10.1080/15685551.2021.1984007","url":null,"abstract":"Natural collagen has good biocompatibility and ability to promote tissue regeneration and repair, but the poor mechanical properties and intolerance of degradation of natural collagen limit its applications in the biomedical field. In this research, we synthesized a skin wound repair hydrogel with good biological activity, high strength and excellent water absorption properties. Inspired by the theory of wet healing, dopamine was introduced into the side chain of the water-absorbing polymer polyglutamic acid to synthesize a cross-linking agent (PGAD) with both water absorption and cell adhesion ablities, and then it was introduced into collagen/polyvinyl alcohol (PVA-COL) system to form a double network hydrogel. Scanning electron microscope observation of the morphological characteristics of the hydrogel showed that after the introduction of PGAD, the hydrogel formed an obvious pore structure, and the swelling rate showed that the introduction of PGAD significantly improved the water absorption rate of the hydrogel.In addition, PVA-COL-PGAD hydrogel has good mechanical properties and water absorption behavior.In vitro experimental results revealed that the hydrogel has good biocompatibility. In vivo wound healing experiments showed that hydrogel can promote wound healing process.These results indicated that our hydrogel has great potential as a medical wound dressing.","PeriodicalId":11170,"journal":{"name":"Designed Monomers and Polymers","volume":"24 1","pages":"293-304"},"PeriodicalIF":1.6,"publicationDate":"2021-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8480661/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39483140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

DFT study on some polythiophenes containing benzo[d]thiazole and benzo[d]oxazole: structure and band gap. 含有苯并[d]噻唑和苯并[d]恶唑的一些聚噻吩的 DFT 研究：结构和带隙。

IF 1.6 4区化学

Designed Monomers and Polymers Pub Date : 2021-09-06 eCollection Date: 2021-01-01 DOI: 10.1080/15685551.2021.1971376

Trung Vu Quoc, Dai Do Ba, Duong Tran Thi Thuy, Linh Nguyen Ngoc, Chinh Nguyen Thuy, Huong Vu Thi, Linh Duong Khanh, Oanh Doan Thi Yen, Hoang Thai, Van Cao Long, Stefan Talu, Dung Nguyen Trong

{"title":"DFT study on some polythiophenes containing benzo[d]thiazole and benzo[d]oxazole: structure and band gap.","authors":"Trung Vu Quoc, Dai Do Ba, Duong Tran Thi Thuy, Linh Nguyen Ngoc, Chinh Nguyen Thuy, Huong Vu Thi, Linh Duong Khanh, Oanh Doan Thi Yen, Hoang Thai, Van Cao Long, Stefan Talu, Dung Nguyen Trong","doi":"10.1080/15685551.2021.1971376","DOIUrl":"10.1080/15685551.2021.1971376","url":null,"abstract":"The content of this paper focuses/shed light on the effects of X (X = S in P1 and X = O in P2) in C11H7NSX and R (R = H in P3, R = OCH3 in P4, and R = Cl in P5) in C18H9ON2S2-R on structural features and band gaps of the polythiophenes containing benzo[d]thiazole and benzo[d]oxazole by the Density Function Theory (DFT) method/calculation. The structural features including the electronic structure lattice constant (a), shape, total energy (Etot) per cell, and link length (r), are measured via band gap (Eg) prediction with the package of country density (PDOS) and total country density (DOS) of material studio software. The results obtained showed that the link angle and the link length between atoms were not changed significantly while the Etot was decreased from Etot = - 1904 eV (in P1) to Etot = - 2548 eV (in P2) when replacing O with S; and the Etot of P3 was decreased from Etot = - 3348 eV (in P3) when replacing OCH3, Cl on H of P3 corresponding to Etot = - 3575 eV (P4), - 4264 eV (P5). Similarly, when replacing O in P1 with - S to form P2, the Eg of P1 was dropped from Eg = 0.621 eV to Eg = 0.239 eV for P2. The Eg of P3, P4, and P5 is Eg = 0.006 eV, 0.064 eV, and 0.0645 eV, respectively. When a benzo[d]thiazole was added in P1 (changing into P3), the Eg was extremely strongly decreased, nearly 100 times (from Eg = 0.621 eV to Eg = 0.006 eV). The obtained results serve as a basis for future experimental work and used to fabricate smart electronic device.","PeriodicalId":11170,"journal":{"name":"Designed Monomers and Polymers","volume":"24 1","pages":"274-284"},"PeriodicalIF":1.6,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8425698/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39427408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Benzocyclobutene-functionalized hyperbranched polysiloxane for low-k materials with good thermostability. 苯并环丁烯功能化超支化聚硅氧烷在低钾材料中的应用。

IF 1.6 4区化学

Designed Monomers and Polymers Pub Date : 2021-09-06 eCollection Date: 2021-01-01 DOI: 10.1080/15685551.2021.1975383

Yunfei Shi, Jing Cai, Xueliang Wu, Yuanrong Cheng

{"title":"Benzocyclobutene-functionalized hyperbranched polysiloxane for low-k materials with good thermostability.","authors":"Yunfei Shi, Jing Cai, Xueliang Wu, Yuanrong Cheng","doi":"10.1080/15685551.2021.1975383","DOIUrl":"https://doi.org/10.1080/15685551.2021.1975383","url":null,"abstract":"Although hyperbranched polysiloxanes have been extensively studied, they have limited practical applications because of their low glass transition temperatures. In this study, we synthesized benzocyclobutene-functionalized hyperbranched polysiloxane (HB-BCB) via the Piers-Rubinsztajn reaction. The synthesized material was cured and crosslinking occurred at temperatures greater than 200 °C, forming a low-k thermoset resin with high thermostability. The structure of the resin was characterized using nuclear magnetic resonance (NMR) spectroscopy, viz. 1H NMR and 13C NMR spectroscopy. 29Si NMR spectroscopy was used to calculate the degree of branching. Differential scanning calorimetry, dynamic mechanical analysis, and thermogravimetric analysis revealed that the cured resin possesses good high-temperature mechanical properties and exhibits a high thermal decomposition temperature (Td5 = 512 °C). In addition, the cured resin has a low dielectric constant (k = 2.70 at 1 MHz) and low dissipation factor (2.13 × 10-3 at 1 MHz). Thus, the prepared resin can function as a low-k material with excellent high-temperature performance. These findings indicate that the performance of crosslinked siloxane is significantly attributed to the introduction of BCB groups and the formation of the highly crosslinked structure.","PeriodicalId":11170,"journal":{"name":"Designed Monomers and Polymers","volume":"24 1","pages":"285-292"},"PeriodicalIF":1.6,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/23/ad/TDMP_24_1975383.PMC8425711.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39427409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Reaction kinetics and properties of MDI base poly (urethane-isocyanurate) network polymers. MDI 基聚（氨基甲酸乙酯-异氰尿酸酯）网络聚合物的反应动力学和特性。

IF 1.6 4区化学

Designed Monomers and Polymers Pub Date : 2021-08-26 eCollection Date: 2021-01-01 DOI: 10.1080/15685551.2021.1971858

Juan Li, Shengling Jiang, Liang Ding, Lingfang Wang

{"title":"Reaction kinetics and properties of MDI base poly (urethane-isocyanurate) network polymers.","authors":"Juan Li, Shengling Jiang, Liang Ding, Lingfang Wang","doi":"10.1080/15685551.2021.1971858","DOIUrl":"10.1080/15685551.2021.1971858","url":null,"abstract":"Since the trimerization of isocyanate occurs easily and controllably to form a clear trifunctional isocyanate ring, this reaction is an ideal candidate for the synthesis of a clear poly(urethane-isocyanurate) network polymer. Poly(urethane-isocyanurate) network polymer (PUI) was prepared from diphenylmethane diisocyanate (MDI) and propylene glycol (PPG) by cyclotrimerization of isocyanate group (NCO). It was proved that the expected product was successfully prepared by NCO determination, fourier transform infrared (FTIR) and gel permeation chromatography (GPC) characterization. The mechanical and thermal properties were characterized. Through the effects of catalyst dosage, polyurethane prepolymer molecular weight, reaction time, reaction temperature and MDI addition on the reaction process, it is determined that under certain other conditions, the step heating method is better for cyclotrimerization reaction. Generally, the better heating conditions are 60 °C/1 h + 80 °C/4 h + 100 °C/2 h + 120 °C/2 h + 140 °C/2 h + 160 °C/2 h. The results of thermogravimetric analysis (TGA) and mechanical properties showed that with the increase of cross-linking points in the polymer structure, the thermal stability, tensile strength, tensile modulus and hardness of PUI increased, while the elongation at break decreased significantly. The glass transition temperature (Tg) of PUI is around 45 °C, and it can be seen that the elastic modulus of the material can range from 58 to 1980 MPa. X-ray diffraction results show that the rubber phase represented by the flexible segment and the plastic phase represented by the rigid structure are amorphous.","PeriodicalId":11170,"journal":{"name":"Designed Monomers and Polymers","volume":"24 1","pages":"265-273"},"PeriodicalIF":1.6,"publicationDate":"2021-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8405120/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39375534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Luminescent property and application values of a new Cd(II) compound in tuberculosis treatment and clinical nursing. 一种新型Cd(II)化合物的发光特性及其在结核病治疗和临床护理中的应用价值。

IF 1.6 4区化学

Designed Monomers and Polymers Pub Date : 2021-08-19 eCollection Date: 2021-01-01 DOI: 10.1080/15685551.2021.1968113

Han-Xiao Tao, Jia-Li Jiang

引用次数: 0

Nanoemulsions as novel nanocarrieres for drug delivery across the skin: In-vitro, in-vivo evaluation of miconazole nanoemulsions for treatment of Candidiasis albicans. 纳米乳剂作为药物通过皮肤传递的新型纳米载体:米康唑纳米乳剂治疗白色念珠菌的体内外评价

IF 1.6 4区化学

Designed Monomers and Polymers Pub Date : 2021-08-17 eCollection Date: 2021-01-01 DOI: 10.1080/15685551.2021.1965724

Umar Farooq, Akhtar Rasul, Muhammad Zafarullah, Ghulam Abbas, Maria Rasool, Farman Ali, Shabbir Ahmed, Zeeshan Javaid, Zoya Abid, Humayun Riaz, Rana Khalid Mahmood Arshad, Shayan Maryam, Naseem Amna, Kanwal Asif

{"title":"Nanoemulsions as novel nanocarrieres for drug delivery across the skin: In-vitro, in-vivo evaluation of miconazole nanoemulsions for treatment of Candidiasis albicans.","authors":"Umar Farooq, Akhtar Rasul, Muhammad Zafarullah, Ghulam Abbas, Maria Rasool, Farman Ali, Shabbir Ahmed, Zeeshan Javaid, Zoya Abid, Humayun Riaz, Rana Khalid Mahmood Arshad, Shayan Maryam, Naseem Amna, Kanwal Asif","doi":"10.1080/15685551.2021.1965724","DOIUrl":"https://doi.org/10.1080/15685551.2021.1965724","url":null,"abstract":"In the current research, attempt is made to fabricate a nanoemulsion (NE) containing an antifungal agent. The prepared formulation has been expected to enhance skin penetration. It is also studied for in vitro drug release and toxicity assessment. Spontaneous titration method was used for preparation of NE. Prepared NE were characterized for their charge, size, morphology, rheological behaviour, drug release profile, skin permeability. The drug permeation and skin irritation were investigated. The in vitro antifungal activity was inspected using the well agar diffusion method. Miconazole NE showed good penetration in the skin as compared to marketed products. SEM showed semispherical shapes of the droplets. Zeta potential and zeta sizer showed that size was in nano ranges having positive charge.","PeriodicalId":11170,"journal":{"name":"Designed Monomers and Polymers","volume":"24 1","pages":"240-258"},"PeriodicalIF":1.6,"publicationDate":"2021-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8382019/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39343795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4