Log in

Relevant bibliographies by topics / Poly Ether Imine / Journal articles

To see the other types of publications on this topic, follow the link: Poly Ether Imine.

Journal articles on the topic 'Poly Ether Imine'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 September 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Poly Ether Imine.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Thankappan, Ullas Padinjaremattathil, Shampur Narayan Madhusudana, Anita Desai, Govindasamy Jayamurugan, Yamajala B. R. D. Rajesh, and Narayanaswamy Jayaraman. "Dendritic Poly(ether imine) Based Gene Delivery Vector." Bioconjugate Chemistry 22, no. 2 (February 16, 2011): 115–19. http://dx.doi.org/10.1021/bc1003108.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Trimpert, Christiane, Gregor Boese, Wolfgang Albrecht, Klaus Richau, Thomas Weigel, Andreas Lendlein, and Thomas Groth. "Poly(ether imide) Membranes Modified with Poly(ethylene imine) as Potential Carriers for Epidermal Substitutes." Macromolecular Bioscience 6, no. 4 (April 12, 2006): 274–84. http://dx.doi.org/10.1002/mabi.200500238.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Matsuo, Shigeru, and Masayo Nakao. "Synthesis and Properties of Poly(arylene ether imine)s." Polymer Journal 26, no. 6 (June 1994): 738–44. http://dx.doi.org/10.1295/polymj.26.738.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Jayamurugan, G., C. P. Umesh, and N. Jayaraman. "Inherent Photoluminescence Properties of Poly(propyl ether imine) Dendrimers." Organic Letters 10, no. 1 (January 2008): 9–12. http://dx.doi.org/10.1021/ol702635w.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Monteleone, Marcello, Riccardo Mobili, Chiara Milanese, Elisa Esposito, Alessio Fuoco, Sonia La Cognata, Valeria Amendola, and Johannes C. Jansen. "PEEK–WC-Based Mixed Matrix Membranes Containing Polyimine Cages for Gas Separation." Molecules 26, no. 18 (September 13, 2021): 5557. http://dx.doi.org/10.3390/molecules26185557.

Full text

Abstract:

Membrane-based processes are taking a more and more prominent position in the search for sustainable and energy-efficient gas separation applications. It is known that the separation performance of pure polymers may significantly be improved by the dispersion of suitable filler materials in the polymer matrix, to produce so-called mixed matrix membranes. In the present work, four different organic cages were dispersed in the poly(ether ether ketone) with cardo group, PEEK-WC. The m-xylyl imine and furanyl imine-based fillers yielded mechanically robust and selective films after silicone coating. Instead, poor dispersion of p-xylyl imine and diphenyl imine cages did not allow the formation of selective films. The H2, He, O2, N2, CH4, and CO2 pure gas permeability of the neat polymer and the MMMs were measured, and the effect of filler was compared with the maximum limits expected for infinitely permeable and impermeable fillers, according to the Maxwell model. Time lag measurements allowed the calculation of the diffusion coefficient and demonstrated that 20 wt % of furanyl imine cage strongly increased the diffusion coefficient of the bulkier gases and decreased the diffusion selectivity, whereas the m-xylyl imine cage slightly increased the diffusion coefficient and improved the size-selectivity. The performance and properties of the membranes were discussed in relation to their composition and morphology.

APA, Harvard, Vancouver, ISO, and other styles

6

Jayamurugan, Govindasamy, and Narayanaswamy Jayaraman. "Synthesis of large generation poly(propyl ether imine) (PETIM) dendrimers." Tetrahedron 62, no. 41 (October 2006): 9582–88. http://dx.doi.org/10.1016/j.tet.2006.07.094.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Kang, Shin Min, Manzoor Ahmad Zahid, Abaid ur Rehamn Virk, Waqas Nazeer, and Wei Gao. "Calculating the Degree-based Topological Indices of Dendrimers." Open Chemistry 16, no. 1 (August 3, 2018): 681–88. http://dx.doi.org/10.1515/chem-2018-0071.

Full text

Abstract:

AbstractTopological indices capture the symmetry of molecular structures and provide a mathematical language to predict properties such as boiling points, viscosity, the radius of gyrations etc. [1]. We compute some newly developed topological indices of Porphyrin, Propyl Ether Imine, Zinc-Porphyrin and Poly(EThyleneAmidoAmine) Dendrimers. The results are plotted using Maple 2015 software to see the dependence on the involved structural parameters.

APA, Harvard, Vancouver, ISO, and other styles

8

Gao, Wei, Muhammad Younas, Adeel Farooq, Abaid Virk, and Waqas Nazeer. "Some Reverse Degree-Based Topological Indices and Polynomials of Dendrimers." Mathematics 6, no. 10 (October 22, 2018): 214. http://dx.doi.org/10.3390/math6100214.

Full text

Abstract:

Topological indices collect information from the graph of molecule and help to predict properties of the underlying molecule. Zagreb indices are among the most studied topological indices due to their applications in chemistry. In this paper, we compute first and second reverse Zagreb indices, reverse hyper-Zagreb indices and their polynomials of Prophyrin, Propyl ether imine, Zinc Porphyrin and Poly (ethylene amido amine) dendrimers.

APA, Harvard, Vancouver, ISO, and other styles

9

Jayamurugan, G., K. S. Vasu, Y. B. R. D. Rajesh, S. Kumar, V. Vasumathi, P. K. Maiti, A. K. Sood, and N. Jayaraman. "Interaction of single-walled carbon nanotubes with poly(propyl ether imine) dendrimers." Journal of Chemical Physics 134, no. 10 (March 14, 2011): 104507. http://dx.doi.org/10.1063/1.3561308.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Bagul, Rahul S., and Narayanaswamy Jayaraman. "Covalent assembly-disassembly of poly(ether imine) dendritic macromolecular monomers and megamers." Polymer 55, no. 20 (September 2014): 5102–10. http://dx.doi.org/10.1016/j.polymer.2014.08.039.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Jin, Yaping, Ruihong Liu, Xuefu Che, Ting Wang, and Jingshuai Yang. "New High Temperature Polymer Electrolyte Membranes Based on Poly(ethylene imine) Crosslinked Poly(ether ketone cardo)." Journal of The Electrochemical Society 168, no. 5 (May 1, 2021): 054524. http://dx.doi.org/10.1149/1945-7111/ac009c.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Krishna, Thatavarathy Rama, and Narayanaswamy Jayaraman. "Synthesis of Poly(propyl ether imine) Dendrimers and Evaluation of Their Cytotoxic Properties." Journal of Organic Chemistry 68, no. 25 (December 2003): 9694–704. http://dx.doi.org/10.1021/jo035072y.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Krishna, Thatavarathy Rama, and Narayanaswamy Jayaraman. "Synthesis and catalytic activities of PdII–phosphine complexes modified poly(ether imine) dendrimers." Tetrahedron 60, no. 45 (November 2004): 10325–34. http://dx.doi.org/10.1016/j.tet.2004.08.067.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Aslam, Adnan, Muhammad Kamran Jamil, Wei Gao, and Waqas Nazeer. "Topological aspects of some dendrimer structures." Nanotechnology Reviews 7, no. 2 (April 25, 2018): 123–29. http://dx.doi.org/10.1515/ntrev-2017-0184.

Full text

Abstract:

AbstractA numerical number associated to the molecular graphGthat describes its molecular topology is called topological index. In the study ofQSARandQSPR, topological indices such as atom-bond connectivity index, Randić connectivity index, geometric index, etc. help to predict many physico-chemical properties of the chemical compound under study. Dendrimers are macromolecules and have many applications in chemistry, especially in self-assembly procedures and host-guest reactions. The aim of this report is to compute degree-based topological indices, namely the fourth atom-bond connectivity index and fifth geometric arithmetic index of poly propyl ether imine, zinc porphyrin, and porphyrin dendrimers.

APA, Harvard, Vancouver, ISO, and other styles

15

Bagul, Rahul S., Yamajala B. R. D. Rajesh, Govindasamy Jayamurugan, Achintya Bera, A. K. Sood, and Narayanaswamy Jayaraman. "Photophysical behavior of poly(propyl ether imine) dendrimer in the presence of nitroaromatic compounds." Journal of Photochemistry and Photobiology A: Chemistry 253 (February 2013): 1–6. http://dx.doi.org/10.1016/j.jphotochem.2012.12.011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Mizugaki, Tomoo, Takayuki Kibata, Takato Mitsudome, Koichiro Jitsukawa, and Kiyotomi Kaneda. "Size Selective Synthesis of Subnano Pd Clusters Using Core [Poly(propylene imine)]–Shell [Poly(benzyl ether)] Hybrid Dendrimers." Chemistry Letters 42, no. 3 (March 5, 2013): 313–15. http://dx.doi.org/10.1246/cl.2013.313.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Aslam, Adnan, Yasir Bashir, Safyan Ahmad, and Wei Gao. "On Topological Indices of Certain Dendrimer Structures." Zeitschrift für Naturforschung A 72, no. 6 (May 24, 2017): 559–66. http://dx.doi.org/10.1515/zna-2017-0081.

Full text

Abstract:

AbstractA topological index can be considered as transformation of chemical structure in to real number. In QSAR/QSPR study, physicochemical properties and topological indices such as Randić, Zagreb, atom-bond connectivity ABC, and geometric-arithmetic GA index are used to predict the bioactivity of chemical compounds. Dendrimers are highly branched, star-shaped macromolecules with nanometer-scale dimensions. Dendrimers are defined by three components: a central core, an interior dendritic structure (the branches), and an exterior surface with functional surface groups. In this paper we determine generalised Randić, general Zagreb, general sum-connectivity indices of poly(propyl) ether imine, porphyrin, and zinc-Porphyrin dendrimers. We also compute ABC and GA indices of these families of dendrimers.

APA, Harvard, Vancouver, ISO, and other styles

18

Krishna, Thatavarathy Rama, Samta Jain, Utpal S. Tatu, and Narayanaswamy Jayaraman. "Synthesis and biological evaluation of 3-amino-propan-1-ol based poly(ether imine) dendrimers." Tetrahedron 61, no. 17 (April 2005): 4281–88. http://dx.doi.org/10.1016/j.tet.2005.02.045.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Jain, Subheet, Amanpreet Kaur, Richa Puri, Puneet Utreja, Anubhuti Jain, Mahesh Bhide, Rakesh Ratnam, et al. "Poly propyl ether imine (PETIM) dendrimer: A novel non-toxic dendrimer for sustained drug delivery." European Journal of Medicinal Chemistry 45, no. 11 (November 2010): 4997–5005. http://dx.doi.org/10.1016/j.ejmech.2010.08.006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Lakshminarayanan, Abirami, and Narayanaswamy Jayaraman. "Successive outermost-to-core shell directionality of the protonation of poly(propyl ether imine) dendritic gene delivery vectors." Canadian Journal of Chemistry 95, no. 9 (September 2017): 965–74. http://dx.doi.org/10.1139/cjc-2017-0153.

Full text

Abstract:

The protonation behaviour of polycationic compounds has direct relevance to their ability to condense and deliver nucleic acids. This report pertains to a study of the protonation behaviour of polycationic poly(propyl ether imine) (PETIM) dendritic gene delivery vectors that are constituted with tertiary amine core moiety and branch sites, n-propyl ether linkages, and primary amine peripheries. The ability of this series of dendrimers to condense nucleic acids and mediate endosomal escape was studied by unravelling the protonation behaviour of the dendrimers aided by pH metric titrations and 1H and 15N NMR spectroscopies. The results demonstrate protonation of the primary and tertiary amines of outermost-to-core shells occurring in a successive stepwise fashion, in contrast to other polycationic vectors. Theoretical calculations based on the Ising model rationalize further the finer details of protonation at each shell. The protonation pattern correlates with the endosomal buffering and nucleic acid condensation properties of this PETIM-based dendritic gene delivery vectors. The study establishes that the protonation behaviour is a critical and essential parameter to assess the gene condensation and delivery vector properties of a polycationic compound.

APA, Harvard, Vancouver, ISO, and other styles

21

Kumar, Prabhat, D. S. Shankar Rao, S. Krishna Prasad, and Narayanaswamy Jayaraman. "Connector type-controlled mesophase structures in poly(propyl ether imine) dendritic liquid crystals of identical dendrimer generations." Journal of Polymer Science Part A: Polymer Chemistry 55, no. 22 (July 27, 2017): 3665–78. http://dx.doi.org/10.1002/pola.28709.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Ali, Yasir, Zainab Bibi, and Quanita Kiran. "Forgotten coindex of some non-toxic dendrimers structure used in targeted drug delivery." Main Group Metal Chemistry 44, no. 1 (January 1, 2021): 22–31. http://dx.doi.org/10.1515/mgmc-2021-0004.

Full text

Abstract:

Abstract In recent past, porphyrin-based dendrimers have gained great attraction due to their usefulness in nano devices and photo-dynamic therapy. New technologies based upon nano-materials or dendrimers have potential to overcome the problems due to conventional drug delivery, like toxicity, poor solubility and poor release pattern of drugs. The chemical and physical properties of these highly branched nanometer sized dendrimers depend on their structure. In chemical network theory, various topological indices are used to predict chemical properties of molecules(dendrimers). Among many useful topological descriptors forgotten coindex is relatively less explored but is found very useful in material engineering, pharmaceutical and chemical industries. In this article, we consider some special dendrimers, like poly(propyl) ether imine, porphyrin, and zinc-porphyrin, and nanostars like D 1[k] and D 2[k] and compute forgotten coindex for these important structures.

APA, Harvard, Vancouver, ISO, and other styles

23

Kumar, Prabhat, D. S. Shankar Rao, S. Krishna Prasad, and N. Jayaraman. "In-plane modulated smectic Ã vs smectic ‘A’ lamellar structures in poly( ethyl or propyl ether imine) dendrimers." Polymer 86 (March 2016): 98–104. http://dx.doi.org/10.1016/j.polymer.2016.01.043.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Naga, Naofumi, Mitsusuke Sato, Kensuke Mori, Hassan Nageh, and Tamaki Nakano. "Synthesis of Network Polymers by Means of Addition Reactions of Multifunctional-Amine and Poly(ethylene glycol) Diglycidyl Ether or Diacrylate Compounds." Polymers 12, no. 9 (September 8, 2020): 2047. http://dx.doi.org/10.3390/polym12092047.

Full text

Abstract:

Addition reactions of multi-functional amine, polyethylene imine (PEI) or diethylenetriamine (DETA), and poly(ethylene glycol) diglycidyl ether (PEGDE) or poly(ethylene glycol) diacrylate (PEGDA), have been investigated to obtain network polymers in H2O, dimethyl sulfoxide (DMSO), and ethanol (EtOH). Ring opening addition reaction of the multi-functional amine and PEGDE in H2O at room temperature or in DMSO at 90 °C using triphenylphosphine as a catalyst yielded gels. Aza-Michael addition reaction of the multi-functional amine and PEGDA in DMSO or EtOH at room temperature also yielded corresponding gels. Compression test of the gels obtained with PEI showed higher Young’s modulus than those with DETA. The reactions of the multi-functional amine and low molecular weight PEGDA in EtOH under the specific conditions yielded porous polymers induced by phase separation during the network formation. The morphology of the porous polymers could be controlled by the reaction conditions, especially monomer concentration and feed ratio of the multi-functional amine to PEGDA of the reaction system. The porous structure was formed by connected spheres or a co-continuous monolithic structure. The porous polymers were unbreakable by compression, and their Young’s modulus increased with the increase in the monomer concentration of the reaction systems. The porous polymers absorbed various solvents derived from high affinity between the polyethylene glycol units in the network structure and the solvents.

APA, Harvard, Vancouver, ISO, and other styles

25

Zhu, Jianhua, Qifeng Zhang, Jifu Zheng, Shuhua Hou, Hongchao Mao, and Suobo Zhang. "Green fabrication of a positively charged nanofiltration membrane by grafting poly(ethylene imine) onto a poly (arylene ether sulfone) membrane containing tertiary amine groups." Journal of Membrane Science 517 (November 2016): 39–46. http://dx.doi.org/10.1016/j.memsci.2016.06.023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Bagul, Rahul S., and Narayanaswamy Jayaraman. "Efficacies of multivalent vs monovalent poly(ether imine) dendritic catalysts within a generation in multiple C–C bond forming reactions." Journal of Organometallic Chemistry 701 (March 2012): 27–35. http://dx.doi.org/10.1016/j.jorganchem.2011.11.026.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Jana, Chandan, G. Jayamurugan, Rajesh Ganapathy, Prabal K. Maiti, N. Jayaraman, and A. K. Sood. "Structure of poly(propyl ether imine) dendrimer from fully atomistic molecular dynamics simulation and by small angle x-ray scattering." Journal of Chemical Physics 124, no. 20 (May 28, 2006): 204719. http://dx.doi.org/10.1063/1.2194538.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Lakshminarayanan, Abirami, Vijay Kumar Ravi, Ranjitha Tatineni, Y. B. R. D. Rajesh, Vishal Maingi, K. S. Vasu, Nandhitha Madhusudhan, et al. "Efficient Dendrimer–DNA Complexation and Gene Delivery Vector Properties of Nitrogen-Core Poly(propyl ether imine) Dendrimer in Mammalian Cells." Bioconjugate Chemistry 24, no. 9 (August 22, 2013): 1612–23. http://dx.doi.org/10.1021/bc400247w.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Chen, Ye, Yan Shu, Zihui Yang, Xumei Lv, Wangming Tan, Yingzhuang Chen, Ming Ma, and Bo Chen. "The preparation of a poly (pentaerythritol tetraglycidyl ether-co-poly ethylene imine) organic monolithic capillary column and its application in hydrophilic interaction chromatography for polar molecules." Analytica Chimica Acta 988 (October 2017): 104–13. http://dx.doi.org/10.1016/j.aca.2017.08.025.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Feng, Mengna, Ming Chen, Jun Qiu, Meng He, Yumin Huang, and Jing Lin. "Improving dielectric properties of poly(arylene ether nitrile) composites by employing core-shell structured BaTiO3@polydopamine and MoS2@polydopamine interlinked with poly(ethylene imine) for high-temperature applications." Journal of Alloys and Compounds 856 (March 2021): 158213. http://dx.doi.org/10.1016/j.jallcom.2020.158213.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Suleman, Nadia, Rahul S. Kalhapure, Chunderika Mocktar, Sanjeev Rambharose, Moganavelli Singh, and Thirumala Govender. "Silver salts of carboxylic acid terminated generation 1 poly (propyl ether imine) (PETIM) dendron and dendrimers as antimicrobial agents against S. aureus and MRSA." RSC Advances 5, no. 44 (2015): 34967–78. http://dx.doi.org/10.1039/c5ra03179f.

Full text

Abstract:

In this study the newly synthesised PETIM silver salts displayed a low toxicity level and showed significant antimicrobial activity against both sensitive (S. aureus) and resistant (MRSA) bacterial strains.

APA, Harvard, Vancouver, ISO, and other styles

32

Cao, Ke, Zhengping Zhou, and Guoliang Liu. "Melt-processable telechelic poly(ether imide)s end-capped with zinc sulfonate salts." Polymer Chemistry 9, no. 48 (2018): 5660–70. http://dx.doi.org/10.1039/c8py01307a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Kanagaraj, P., S. Neelakandan, A. Nagendran, D. Rana, T. Matsuura, and A. Muthumeenal. "Performance studies of PEI/SPEI blend ultra-filtration membranes via surface modification using cSMM additives." RSC Advances 5, no. 35 (2015): 27594–602. http://dx.doi.org/10.1039/c4ra17097k.

Full text

Abstract:

Sulfonated poly(ether imide) and charged surface modifying macromolecules were synthesized, characterized and blended into a casting solution of poly(ether imide) in different amounts to develop surface modified ultra-filtration membranes by means of improved hydrophilicity.

APA, Harvard, Vancouver, ISO, and other styles

34

Tamboli, Aslam B., Shivaji D. Ghodke, Arati V. Diwate, Makrand D. Joshi, Vijay P. Ubale, and Noormahmad N. Maldar. "Processable poly(ether ether ketone imide)s." High Performance Polymers 34, no. 2 (November 4, 2021): 242–49. http://dx.doi.org/10.1177/09540083211055044.

Full text

Abstract:

New aromatic poly(ether ether ketone imide)s, [PEEKimide]s, were synthesized successfully from 1,3-bis-4′-(4″-aminophenoxy benzoyl) benzene and various commercially available aromatic dianhydrides, such as pyromellitic dianhydride (PMDA), 3,3′,4,4′-benzophenone tetracarboxylic dianhydride (BTDA), 3,3′,4,4′-biphenyl tetracarboxylic dianhydride (BPDA), 4,4′-oxydiphthalic anhydride (OPDA) and 4,4′-(hexafluro isoproylidene) diphthalic anhydride (HFDA), by two step polycondensation method. These PEEKimides were characterized by FT-IR, solubility in organic solvents, inherent viscosity, DSC, TGA and WXRD. Inherent viscosities of the precursor poly(ether ether ketone amic acid)s were in the range of 0.23–0.40 dl/g in DMF, indicating formation of moderate to high molecular weights. These poly(ether ether ketone imide)s showed good solubility in polar aprotic solvents such as N,N-dimethylacetamide (DMAc), N-methyl 2-pyrrolidone (NMP), N,N-dimethylformamide (DMF) and dimethyl sulphoxide (DMSO) and had glass transition temperatures in the range 245–279°C. Poly(ether ether ketone imide)s showed no weight loss below 280°C; temperatures for 10% weight loss (T10) were in the range of 406–483°C and char yields at 800°C were 17–34%, indicating their good thermal stability. All these poly(ether ether ketone imide)s were amorphous in nature, as per patterns of WXRD which exhibited diffuse broad halos at (2θ = 10–30°) and amorphous nature was reflected in polymer’s good solubility in common organic solvents.

APA, Harvard, Vancouver, ISO, and other styles

35

Liu, Bin, Jiangying Kuang, Leishan Shao, Xinyuan Che, Fei Wang, and Yinghan Wang. "Porous membranes based on poly(ether imide)-graft-poly(vinyl acetate) as a scaffold for cell growth." Journal of Bioactive and Compatible Polymers 33, no. 2 (August 18, 2017): 178–94. http://dx.doi.org/10.1177/0883911517723038.

Full text

Abstract:

A series of poly(ether imide)-graft-poly(vinyl acetate) copolymers with different molecular weights were synthesized successfully and characterized using Fourier transform infrared spectroscopy, ultraviolet–visible spectroscopy, proton nuclear magnetic resonance, gel permeation chromatography, differential scanning calorimeter, thermogravimetric analysis, and X-ray photoelectron spectroscopy analyses. These copolymers were used to fabricate honeycomb-structured porous films using the breath figure templating technique. The surface topology and composition of the highly ordered pattern film were further characterized using a scanning electron microscopy. The results indicated that the poly(ether imide)-graft-poly(vinyl acetate) graft molecular weight ratio influenced the breath figure film surface topology. A model was proposed to elucidate the stabilization process of the poly(ether imide)-graft-poly(vinyl acetate)-aggregated architecture on the water droplet–based templates. In addition, cell viability has been investigated via 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide test, and the cell morphology on the honeycomb-structured poly(ether imide)-graft-poly(vinyl acetate) porous film has been evaluated using a fluorescence microscope. This porous film is shown to be suitable as a matrix for cell growth.

APA, Harvard, Vancouver, ISO, and other styles

36

Neelakandan, S., Noel Jacob K, P. Kanagaraj, R. M. Sabarathinam, A. Muthumeenal, and A. Nagendran. "Effect of sulfonated graphene oxide on the performance enhancement of acid–base composite membranes for direct methanol fuel cells." RSC Advances 6, no. 57 (2016): 51599–608. http://dx.doi.org/10.1039/c5ra27655a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Kleine, Aaron, Cem L. Altan, U. Ecem Yarar, Nico A. J. M. Sommerdijk, Seyda Bucak, and Simon J. Holder. "The polymerisation of oligo(ethylene glycol methyl ether) methacrylate from a multifunctional poly(ethylene imine) derived amide: a stabiliser for the synthesis and dispersion of magnetite nanoparticles." Polym. Chem. 5, no. 2 (2014): 524–34. http://dx.doi.org/10.1039/c3py01094e.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Liu, Shuai, Lihua Wang, Dan Li, Biqian Liu, Jianjun Wang, and Yanlin Song. "Novel amphoteric ion exchange membranes by blending sulfonated poly(ether ether ketone)/quaternized poly(ether imide) for vanadium redox flow battery applications." Journal of Materials Chemistry A 3, no. 34 (2015): 17590–97. http://dx.doi.org/10.1039/c5ta04351d.

Full text

Abstract:

For vanadium redox flow battery (VRB) applications, novel amphoteric ion exchange membranes (AIEMs) are prepared using sulfonated poly(ether ether ketone) (SPEEK) and quaternized poly(ether imide) (QAPEI) by a facile method.

APA, Harvard, Vancouver, ISO, and other styles

39

Tamai, S., W. Yamashita, and A. Yamaguchi. "Processable Poly(Keto-Imide)s Having Bulky Pendent Ether Groups." High Performance Polymers 10, no. 1 (March 1998): 1–10. http://dx.doi.org/10.1088/0954-0083/10/1/002.

Full text

Abstract:

1, 3-Bis(3-aminobenzoyl)benzene (BAB), 1, 3-bis(3-amino-4-phenoxybenzoyl)benzene (BAPB) and 1, 3-bis(3-amino-4-biphenoxybenzoyl)benzene (BABB) were synthesized from 1, 3-bis(3-nitro-4-chlorobenzoyl)benzene. By using these three diamines and commercially available tetracarboxylic dianhydrides such as 3, 3′, 4, 4′-benzophenone tetracarboxylic dianhydride (BTDA) and pyromellitic dianhydride (PMDA), several kinds of poly(keto-imide)s were synthesized. Thermal properties and processability such as melt-flowability and solubility in organic solvents of the obtained poly(keto-imide)s were investigated by focusing on the chemical structures of their repeating structure units. Inherent viscosities of poly(keto-imide)s ranged from 0.54 to 0.75 dl g−1. These poly(keto-imide)s displayed glass transition temperatures ( Tg) between 219 and 256 °C, and only the poly(keto-imide) prepared from BAB and PMDA showed a melting point ( Tm)at 451 °C. Melt-flowabilities of these poly(keto-imide)s except for BAB/PMDA poly(keto-imide) were observed between 285 and 330 °C. The poly(keto-imide)s having bulky pendent ether groups were soluble in chloroform, 1, 1, 2-trichloroethane, N, N-dimethylacetamide and m-cresol at ambient temperature.

APA, Harvard, Vancouver, ISO, and other styles

40

Lu, Yunhua, Jianhua Zhang, Guoyong Xiao, Lin Li, Mengjie Hou, Junyi Hu, and Tonghua Wang. "Synthesis and gas permeation properties of thermally rearranged poly(ether-benzoxazole)s with low rearrangement temperatures." RSC Advances 10, no. 30 (2020): 17461–72. http://dx.doi.org/10.1039/d0ra00145g.

Full text

Abstract:

A series of poly(ether-benzoxazole)(PEBO) for gas separation were prepared from 9,9-bis[4-(4-amino-3-hydroxylphenoxy)phenyl]fluorene based hydroxyl-containing poly(ether-imide)s (HPEIs) with low rearrangement temperatures.

APA, Harvard, Vancouver, ISO, and other styles

41

Choy, Beom Sun, Jeongbin Park, Ho-Jong Kang, and Dong Hyun Lee. "Fabrication of Poly(ether imide) Microspheres for Selective Laser Sintering (SLS) 3D Printing Process." Polymer Korea 41, no. 3 (May 31, 2017): 554–60. http://dx.doi.org/10.7317/pk.2017.41.3.554.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Nedelcu, Dumitru, Simona Plavanescu, and Elena Puiu. "Impact Resistance of “Liquid Wood”." Advanced Materials Research 1036 (October 2014): 13–17. http://dx.doi.org/10.4028/www.scientific.net/amr.1036.13.

Full text

Abstract:

The main substances with an important effect over any company development are the materials which require simple or complex manufacturing processes. In the near future the using of recyclable materials will become an extremely important factor in all of activity fields. Therefore, liquid wood, due to its biodegradability and mechanical properties superior to other plastics, could replace some plastic materials soon. In case of arboform the granules made from: lignocellulosic fibers (combination of cellulose, lignin and wood polyoses); natural Polymers: lignin, polyester; natural resins/waxes: aliphatic and aromatic ketones, alcohols, carbonic acids, lactones and polycycles in monomeric, oligomeric and polymeric form. In case of arbofill it made from petrochemical polymers like polypropylene or polyethylene, reinforced with natural fibres like hemp, flax or wood. The arboblend contains different biopolymers like e.g. polyhydroxialkanoate, polyester, ingeo TM, lignin, starch, cellulose, organic additives, natural resins or waxes and natural reinforcing fibers, [. Because the injection process of arboform L, V3 Nature was very difficult this material was reinforced with 5% aramid fibers. The properties of liquid wood are very important to be known take into account the possibility to find some plastic materials for replacing. Therefore the paper presents some aspects of research concerning the impact resistance of these materials. For that was used the injection process to obtain the samples with six input parameters inside of experimental plan. Each factor had two level and was used the Taguchi methodology. The results obtained and the plastic materials that could be replaced are as follow: arbofill Fichte: (11-15) kJ/mp and it could be replace the PC GF 30, PPE GF 30, PEEK GF 30 (Poly Ether Ether Ketone Glass Filled), PEEK CF 30 (Poly Ether Ether Ketone Carbon Filled), PEI GF 30 (Poly Ether Imide); arboblend V2 Nature: (20-26) kJ/mp and it could be replace the PA 66 GF 30, PA 11 GF 30, PC GF 30, PP GF 30, PMMA, PPE GF 30, PEEK GF 30 (Poly Ether Ether Ketone Glass Filled), PEEK CF 30 (Poly Ether Ether Ketone Carbon Filled), PEI GF 30 (Poly Ether Imide) and arboform L, V3 Nature reinforced with aramid fibers: (8-14) kJ/mp and it could be replace the PC GF 30 (30% glass fiber), PVC, PPE GF 30, PEEK GF 30 (Poly Ether Ether Ketone Glass Filled), PEEK CF 30 (Poly Ether Ether Ketone Carbon Filled), PEI GF 30 (Poly Ether Imide).

APA, Harvard, Vancouver, ISO, and other styles

43

Hamciuc, Corneliu, Elena Hamciuc, Maria Cazacu, and Lidia Okrasa. "Poly(ether-imide) and poly(ether-imide)-polydimethyl-siloxane containing isopropylidene groups." Polymer Bulletin 59, no. 6 (August 25, 2007): 825–32. http://dx.doi.org/10.1007/s00289-007-0820-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Jayaganthan, Rengaswamy, and Rohitkumar H. Vora. "Experimental Investigation and Monte Carlo Simulation of Glass Transition in Polymer Nanocomposites." Journal of Metastable and Nanocrystalline Materials 23 (January 2005): 339–42. http://dx.doi.org/10.4028/www.scientific.net/jmnm.23.339.

Full text

Abstract:

The glass transition temperature (Tg) of Fluoro-Poly(ether-imide) and Fluoro-Poly(either-Imide)/MMY clay Nanocomposites has been investigated by both experiments and Monte Carlo Simulation. It was observed that the (Tg) values of the nanocomposites increases with increase in clay contents.

APA, Harvard, Vancouver, ISO, and other styles

45

Wu, Si Die, Jian Wu Lan, Shao Jian Lin, and Si Chen. "Improving Elastic Recovery of Poly( Ester-Ether) Fiber at Lower Temperature with Poly( Ester-Imide)." Advanced Materials Research 332-334 (September 2011): 327–30. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.327.

Full text

Abstract:

To improve the elastic recovery of common poly(ester-ether) fibers, especially under lower temperatures, an imide dicarboxylic acid was prepared with trimellitic anhydride and aminobenzoic acid firstly, and then series of poly(ester-ether-imide) block copolymer(CPI) were prepared with this imide dicarboxylic acid, terephthalic acid, 1,4-butanediol and polytetrahydrofuran glycol .etc. The stuctures and properties were investigated by FT-IR spectra, differential scanning calorimetry(DSC) and capillary Ubbelohde. It was found that the Tm of the polymer was about 140°C and the intrinsic viscosity was 0.7~0.9dL/g. The CPI copolymers were melting spinning. The draw ratio and test temperature effects to the fibers' elastic recovery were studied. The results showed that stretching is beneficial to the improvement of the elastic recovery; the modified fibers' delayed elastic recovery was above 92% at 28°C and over 95% at lower temperatures of 5°C and -10°C, which is a great improvement to the common poly(ester-ether) fibers'.

APA, Harvard, Vancouver, ISO, and other styles

46

Mercer, Frank W., Martin T. McKenzie, Maria Bruma, and Burkhard Schulz. "Synthesis and Characterization of New Fluorinated Poly(Imide Benzoxazole)S." High Performance Polymers 8, no. 3 (September 1996): 395–406. http://dx.doi.org/10.1088/0954-0083/8/3/005.

Full text

Abstract:

We have prepared a series of fluorinated aromatic poly(ether imide benzoxazole)s (PEIBs) and fluorinated aromatic poly(imide benzoxazole)s (PIBs). New PEIBs were prepared by polycondensation of aromatic diamines containing both benzoxazole and hexafluoroisopropylidene groups. New PIBs were prepared by polycondensation of bis( o-aminophenol)s, such as 3,3′-dihydroxybenzidine or 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane, with diacid chlorides containing both imide and hexafluoroisopropylidene groups. We have characterized the solubility, film forming ability, thermal stability and dielectric constant of these fluorinated poly(imide benzoxazole)s.

APA, Harvard, Vancouver, ISO, and other styles

47

Toiserkani, Hojjat. "Synthesis and evaluation of properties of novel aromatic poly(ether-imide) with benzazole pendent groups and flexible ether linkages." High Performance Polymers 23, no. 7 (November 2011): 542–54. http://dx.doi.org/10.1177/0954008311421988.

Full text

Abstract:

Three types of new bis(ether-amine) monomers such as 5-(2-benzimidazole)-1,3-bis(4-aminophenoxy)benzene (3), 5-(2-benzoxazole)-1,3-bis(4-aminophenoxy)benzene (4), and 5-(2-benzothiazole)-1,3-bis(4-aminophenoxy)benzene (5) were prepared in three steps, starting from the reaction of 3,5-dihydroxybenzioc acid with 4-fluronitrobenzene in N, N-dimethylformamide (DMF) solution in the presence of potassium carbonate, followed by catalytic reduction of the intermediate dinitro-carboxylic acids, and subsequent condensation of the resulting diamino-carboxylic acids and 1,2-phenylenediamine, 2-aminophenol or 2-aminothiophenol in polyphosphoric acid (PPA), respectively. Three series of modified poly(ether-imide)s (PEIs) bearing pendent benzimidazole, benzoxazole or benzothiazole groups were prepared from the bis(ether-amine)s with dianhydrides by a conventional two-stage process that included ring-opening polycondensation forming the poly(amic acid)s (PAA) and further thermal or chemical imidization forming poly(ether-imide)s. For comparative purposes, reference poly(ether-imide)s were also prepared by reacting bis(ether-amine) lacking pendent groups namely 1,3-bis(4-aminophenoxy)benzene (6) with the same dianhydrides under similar conditions. The modified polymers were obtained in quantitative yields with inherent viscosities between 0.52 and 0.83 dL g−1. Experimental results indicated that all the PEIs had glass transition temperature between 221 and 283 °C, the decomposition temperature at 10% weight loss between 480 and 572 °C under nitrogen.

APA, Harvard, Vancouver, ISO, and other styles

48

Patel, Hasmukh S., and Nimisha R. Patel. "Poly(ether-imide)s based on epoxy resin: I." High Performance Polymers 6, no. 1 (February 1994): 13–19. http://dx.doi.org/10.1088/0954-0083/6/1/002.

Full text

Abstract:

Novel poly(ether-imide)s were prepared by Diels-Alder (DA) reaction of 1, l'-(1-methylethylidene)bis[4-{l-(2-furanylmethoxy)-2-propanolyloxy}]benzene with the bismaleimrnides N, N'-hexamethylenebismaleimide and N-N'-1, 4-phenylenebismaleimide. The DA reaction was carried out in solution using tetrahydrofuran as solvent, as well as in bulk. The post-polymerization, involving aromatization of tetrahydrophthalimide intermediates, was accomplished in the presence of acetic anbydride. 'All the poly(ether-imide)s were characterized by elemental analyses, infrared spectrometry and thermogravimetry.

APA, Harvard, Vancouver, ISO, and other styles

49

Browne, M. M., M. Forsyth, and A. A. Goodwin. "Solvent diffusion in poly(ether ether ketone)/poly(ether imide) blends." Polymer 36, no. 22 (January 1995): 4359–60. http://dx.doi.org/10.1016/0032-3861(95)92236-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Stuart, B. H., and B. J. Briscoe. "Sliding Friction Studies of a Poly(Ether Ether Ketone)/Poly(Ether Imide) Blend." High Performance Polymers 8, no. 2 (June 1996): 275–80. http://dx.doi.org/10.1088/0954-0083/8/2/008.

Full text

Abstract:

The results of a sliding friction study of a blend of poly(ether ether ketone) (PEEK) and poly(ether imide) (PEI) are reported. The frictional behaviour of the blend follows a similar trend to that of the unblended PEEK, but the overall friction is higher in the case of the blend. However, comparison of the data obtained for unblended and blended PEEK shows that there is a reduction in the failure potential of PEEK when PEI is incorporated. That is, the potential for catastrophic thermally induced contact failure in the PEEK/PEI blend investigated is less than that observed for the unblended PEEK.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!