|
1
|
Affiliation(s)
- Subrata Mondal
- Department of Mechanical Engineering, National Institute of Technical Teachers’ Training and Research (NITTTR) Kolkata, Kolkata, India
| |
Collapse
|
|
2
|
Laza JM, Veloso A, Vilas JL. Tailoring new bisphenol a ethoxylated shape memory polyurethanes. J Appl Polym Sci 2021. [DOI: 10.1002/app.49660] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- José Manuel Laza
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología Universidad del País Vasco UPV/EHU Leioa Spain
| | - Antonio Veloso
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología Universidad del País Vasco UPV/EHU Leioa Spain
| | - José Luis Vilas
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología Universidad del País Vasco UPV/EHU Leioa Spain
- BCMaterials, Basque Center for Materials Applications and Nanostructures, UPV/EHU Science Park Leioa Spain
| |
Collapse
|
|
3
|
Song X, Chi H, Li Z, Li T, Wang F. Star-Shaped Crosslinker for Multifunctional Shape Memory Polyurethane. Polymers (Basel) 2020; 12:polym12040740. [PMID: 32224862 PMCID: PMC7240373 DOI: 10.3390/polym12040740] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/24/2020] [Accepted: 03/24/2020] [Indexed: 11/16/2022] Open
Abstract
Star-shaped cyclophosphazene (ACP) was employed as covalent crosslinker to form a rigid segment in polyurethanes network, to enhance the mechanical performance and to add extra flame retardant property. The effects of different ACP contents on the shape memory ability and fire resistance performance of polyurethane (PU) were studied. Tensile tests suggested high flexibility of the PUs with the maximum elongation-at-break of 161.59%. Dynamic mechanical analysis (DMA) indicated good shape recovery ratio of 72.58% after more than three repeated cycles. Under thermal treatment, the temporary shape could recover to its original state in 10 s. The peak heat release rate (pHRR), total heat released (THR) and temperature at pHRR (Tp) of flame-retardant shape memory polyurethane (FSPU) by micro-combustion calorimeter (MCC) was as low as 183.2 W/g, 21.4 KJ/g, 330.8 °C respectively, suggesting good inherent fire-resistant performance. As amine-containing crosslinkers are one of the most common building units in thermosetting polymers, we anticipate that our finding will have significant benefits beyond shape memory and fire-resistance.
Collapse
Affiliation(s)
- Xiuhuan Song
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Hong Chi
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
- Correspondence: (H.C.); (F.W.)
| | - Zibiao Li
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
| | - Tianduo Li
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - FuKe Wang
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore
- Correspondence: (H.C.); (F.W.)
| |
Collapse
|
|
4
|
Classification of Shape-Memory Polymers, Polymer Blends, and Composites. ADVANCED STRUCTURED MATERIALS 2020. [DOI: 10.1007/978-981-13-8574-2_2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
|
5
|
Ahmad Zubir S, Mat Saad N, Harun FW, Ali ES, Ahmad S. Incorporation of palm oil polyol in shape memory polyurethane: Implication for development of cardiovascular stent. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4412] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Syazana Ahmad Zubir
- School of Materials and Mineral Resources Engineering; Engineering Campus, Universiti Sains Malaysia; 14300 Nibong Tebal Pulau Pinang Malaysia
| | - Norshahli Mat Saad
- School of Materials and Mineral Resources Engineering; Engineering Campus, Universiti Sains Malaysia; 14300 Nibong Tebal Pulau Pinang Malaysia
| | - Farah Wahida Harun
- Department of Physics, Faculty of Science and Technology; Universiti Sains Islam Malaysia; 71800 Nilai Negeri Sembilan Malaysia
| | - Ernie Suzana Ali
- Department of Physics, Faculty of Science and Technology; Universiti Sains Islam Malaysia; 71800 Nilai Negeri Sembilan Malaysia
| | - Sahrim Ahmad
- School of Applied Physics, Faculty of Science and Technology; Universiti Kebangsaan Malaysia; 43600 Bangi Selangor Malaysia
| |
Collapse
|
|
6
|
Bhat SI, Ahmadi Y, Ahmad S. Recent Advances in Structural Modifications of Hyperbranched Polymers and Their Applications. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01969] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Shahidul Islam Bhat
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Younes Ahmadi
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Sharif Ahmad
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| |
Collapse
|
|
7
|
Hu J, Zhang C, Li X, Han J, Ji F. Architectural evolution of phase domains in shape memory polyurethanes by dissipative particle dynamics simulations. Polym Chem 2017. [DOI: 10.1039/c6py01214k] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The MDI phase in SMPUs develops a framework with netpoints evolving from spheres, to linked-spheres, linked-cylinders, and then to linked-bi-crossing-cylinders.
Collapse
Affiliation(s)
- Jinlian Hu
- Institute of Textiles and Clothing
- the Hong Kong Polytechnic University
- Kowloon
- China
- The Hong Kong Polytechnic University Shenzhen Base
| | - Cuili Zhang
- Institute of Textiles and Clothing
- the Hong Kong Polytechnic University
- Kowloon
- China
- The Hong Kong Polytechnic University Shenzhen Base
| | - Xun Li
- Department of Applied Mathematics
- the Hong Kong Polytechnic University
- Kowloon
- China
| | - Jianping Han
- Institute of Textiles and Clothing
- the Hong Kong Polytechnic University
- Kowloon
- China
- The Hong Kong Polytechnic University Shenzhen Base
| | - Fenglong Ji
- School of Textiles and Clothing
- Wuyi University
- Jiangmen
- China
| |
Collapse
|
|
8
|
Dai Z, Yang K, Dong Q. Mechanical, Thermal and Morphology Properties of Thermoplastic Polyurethane Copolymers Incorporating α,ω-Dihydroxy-[poly(propyleneoxide)-poly (dimethylsiloxane)-poly(propyleneoxide)] of Varying Poly(propyleneoxide) Molecular Weight. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/ojsta.2015.43005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
|
9
|
Wang X, Fu Y, Guo P, Ren L, Wang H, Qiang T. Synthesis, characterization, and properties of PCDL aliphatic hyperbranched polyurethane coatings. J Appl Polym Sci 2013. [DOI: 10.1002/app.39482] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xuechuan Wang
- Key Laboratory of Chemistry and Technology for Light Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology; Xi'an; 710021; Shaanxi; People's Republic of China
| | - Yuqiao Fu
- Key Laboratory of Chemistry and Technology for Light Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology; Xi'an; 710021; Shaanxi; People's Republic of China
| | - Peiying Guo
- Key Laboratory of Chemistry and Technology for Light Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology; Xi'an; 710021; Shaanxi; People's Republic of China
| | - Longfang Ren
- Key Laboratory of Chemistry and Technology for Light Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology; Xi'an; 710021; Shaanxi; People's Republic of China
| | - Haijun Wang
- Key Laboratory of Chemistry and Technology for Light Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology; Xi'an; 710021; Shaanxi; People's Republic of China
| | - Taotao Qiang
- Key Laboratory of Chemistry and Technology for Light Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology; Xi'an; 710021; Shaanxi; People's Republic of China
| |
Collapse
|
|
10
|
Pergal MV, Džunuzović JV, Poręba R, Steinhart M, Pergal MM, Vodnik VV, Špírková M. Structure–Property Correlation Study of Novel Poly(urethane–ester–siloxane) Networks. Ind Eng Chem Res 2013. [DOI: 10.1021/ie400467j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marija V. Pergal
- Institute of Chemistry, Technology and Metallurgy
(ICTM)—Center of Chemistry, University of Belgrade, Studentski trg 12-16, ∥Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, and ⊥Institute of Nuclear Science “Vinča”, University of Belgrade, P.O. Box 522,
11000 Belgrade, Serbia
- Nanostructured Polymers and Composites Department and §Supramolecular
Polymer Systems Department, Institute of Macromolecular Chemistry AS CR, v.v.i. (IMC), Heyrovskeho
nam. 2, 16206 Praha 6, Czech Republic
| | - Jasna V. Džunuzović
- Institute of Chemistry, Technology and Metallurgy
(ICTM)—Center of Chemistry, University of Belgrade, Studentski trg 12-16, ∥Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, and ⊥Institute of Nuclear Science “Vinča”, University of Belgrade, P.O. Box 522,
11000 Belgrade, Serbia
- Nanostructured Polymers and Composites Department and §Supramolecular
Polymer Systems Department, Institute of Macromolecular Chemistry AS CR, v.v.i. (IMC), Heyrovskeho
nam. 2, 16206 Praha 6, Czech Republic
| | - Rafał Poręba
- Institute of Chemistry, Technology and Metallurgy
(ICTM)—Center of Chemistry, University of Belgrade, Studentski trg 12-16, ∥Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, and ⊥Institute of Nuclear Science “Vinča”, University of Belgrade, P.O. Box 522,
11000 Belgrade, Serbia
- Nanostructured Polymers and Composites Department and §Supramolecular
Polymer Systems Department, Institute of Macromolecular Chemistry AS CR, v.v.i. (IMC), Heyrovskeho
nam. 2, 16206 Praha 6, Czech Republic
| | - Miloš Steinhart
- Institute of Chemistry, Technology and Metallurgy
(ICTM)—Center of Chemistry, University of Belgrade, Studentski trg 12-16, ∥Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, and ⊥Institute of Nuclear Science “Vinča”, University of Belgrade, P.O. Box 522,
11000 Belgrade, Serbia
- Nanostructured Polymers and Composites Department and §Supramolecular
Polymer Systems Department, Institute of Macromolecular Chemistry AS CR, v.v.i. (IMC), Heyrovskeho
nam. 2, 16206 Praha 6, Czech Republic
| | - Miodrag M. Pergal
- Institute of Chemistry, Technology and Metallurgy
(ICTM)—Center of Chemistry, University of Belgrade, Studentski trg 12-16, ∥Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, and ⊥Institute of Nuclear Science “Vinča”, University of Belgrade, P.O. Box 522,
11000 Belgrade, Serbia
- Nanostructured Polymers and Composites Department and §Supramolecular
Polymer Systems Department, Institute of Macromolecular Chemistry AS CR, v.v.i. (IMC), Heyrovskeho
nam. 2, 16206 Praha 6, Czech Republic
| | - Vesna V. Vodnik
- Institute of Chemistry, Technology and Metallurgy
(ICTM)—Center of Chemistry, University of Belgrade, Studentski trg 12-16, ∥Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, and ⊥Institute of Nuclear Science “Vinča”, University of Belgrade, P.O. Box 522,
11000 Belgrade, Serbia
- Nanostructured Polymers and Composites Department and §Supramolecular
Polymer Systems Department, Institute of Macromolecular Chemistry AS CR, v.v.i. (IMC), Heyrovskeho
nam. 2, 16206 Praha 6, Czech Republic
| | - Milena Špírková
- Institute of Chemistry, Technology and Metallurgy
(ICTM)—Center of Chemistry, University of Belgrade, Studentski trg 12-16, ∥Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, and ⊥Institute of Nuclear Science “Vinča”, University of Belgrade, P.O. Box 522,
11000 Belgrade, Serbia
- Nanostructured Polymers and Composites Department and §Supramolecular
Polymer Systems Department, Institute of Macromolecular Chemistry AS CR, v.v.i. (IMC), Heyrovskeho
nam. 2, 16206 Praha 6, Czech Republic
| |
Collapse
|
|
11
|
|
|
12
|
Abstract
Thermoplastic polyurethane (TPU) nanocomposites were prepared using polycaprolactonediol as the soft segment, 4,4’-diphenylmethane diisocyanate as the hard segment, 1,4-butanediol and palm oil polyol. Nanoclay with certain weight percent (wt%) was reinforced as filler to improve both mechanical and shape memory behavior of the nanocomposites. Palm oil polyol was introduced in order to provide hyperbranched structure for better dispersion of filler in the matrix as well as aiding the crosslinking process. The experimental results showed that the mechanical and shape memory behavior of clay reinforced polyurethane nanocomposites were influenced by clay weight percent in the polymer matrix. TPU with 3 wt% clay showed optimum values of mechanical properties while the shape memory behavior decreases with increasing clay content.
Collapse
|
|
13
|
Džunuzović JV, Pergal MV, Poręba R, Ostojić S, Lazić N, Špírková M, Jovanović S. Studies of the Thermal and Mechanical Properties of Poly(urethane–siloxane)s Cross-Linked by Hyperbranched Polyesters. Ind Eng Chem Res 2012. [DOI: 10.1021/ie300927z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jasna V. Džunuzović
- Institute of Chemistry, Technology
and Metallurgy (ICTM)−Center of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Marija V. Pergal
- Institute of Chemistry, Technology
and Metallurgy (ICTM)−Center of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Rafał Poręba
- Institute of Macromolecular Chemistry AS CR, v.v.i. (IMC), Nanostructured Polymers
and Composites Department, Heyrovskeho nam. 2, 16206 Praha 6, Czech
Republic
| | - Sanja Ostojić
- Institute of General
and Physical
Chemistry, University of Belgrade, Studentski
trg 12-16, 11000 Belgrade, Serbia
| | - Nada Lazić
- Institute of General
and Physical
Chemistry, University of Belgrade, Studentski
trg 12-16, 11000 Belgrade, Serbia
| | - Milena Špírková
- Institute of Macromolecular Chemistry AS CR, v.v.i. (IMC), Nanostructured Polymers
and Composites Department, Heyrovskeho nam. 2, 16206 Praha 6, Czech
Republic
| | - Slobodan Jovanović
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade,
Serbia
| |
Collapse
|
|
14
|
Lin HY, Kong LF, Liang H, Lu J. ONE-POT SYNTHESIS OF SULFONIC ACID GROUP-CONTAINING HYPERBRANCHED POLYURETHANE. ACTA POLYM SIN 2012. [DOI: 10.3724/sp.j.1105.2012.11403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
|
15
|
Agarwal P, Chopra M, Archer LA. Nanoparticle Netpoints for Shape-Memory Polymers. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
|
16
|
Agarwal P, Chopra M, Archer LA. Nanoparticle Netpoints for Shape-Memory Polymers. Angew Chem Int Ed Engl 2011; 50:8670-3. [DOI: 10.1002/anie.201103908] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Indexed: 11/05/2022]
|
|
17
|
|
|
18
|
Žagar E, Žigon M. Aliphatic hyperbranched polyesters based on 2,2-bis(methylol)propionic acid—Determination of structure, solution and bulk properties. Prog Polym Sci 2011. [DOI: 10.1016/j.progpolymsci.2010.08.004] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
|
19
|
Sivakumar C, Sultan Nasar A. Shape-memory polyurethanes minimally crosslinked with hydroxyl-terminated AB2-type hyperbranched polyurethanes. J Appl Polym Sci 2010. [DOI: 10.1002/app.33084] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
|
20
|
Zhang X. Modifications and applications of hyperbranched aliphatic polyesters based on dimethylolpropionic acid. POLYM INT 2010. [DOI: 10.1002/pi.2930] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
|
21
|
|
|
22
|
Deka H, Karak N. Bio-based hyperbranched polyurethane/clay nanocomposites: adhesive, mechanical, and thermal properties. POLYM ADVAN TECHNOL 2009. [DOI: 10.1002/pat.1603] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
|
23
|
|
|
24
|
Voit BI, Lederer A. Hyperbranched and Highly Branched Polymer Architectures—Synthetic Strategies and Major Characterization Aspects. Chem Rev 2009; 109:5924-73. [DOI: 10.1021/cr900068q] [Citation(s) in RCA: 942] [Impact Index Per Article: 62.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Brigitte I. Voit
- Leibniz Institute of Polymer Research Dresden, Hohe Strasse 6, 01069 Dresden, Germany
| | - Albena Lederer
- Leibniz Institute of Polymer Research Dresden, Hohe Strasse 6, 01069 Dresden, Germany
| |
Collapse
|
|
25
|
Sivakumar C, Nasar AS. Poly(ε-caprolactone)-based hyperbranched polyurethanes prepared via A2+B3 approach and its shape-memory behavior. Eur Polym J 2009. [DOI: 10.1016/j.eurpolymj.2009.05.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
|
26
|
Nagahama K, Ueda Y, Ouchi T, Ohya Y. Biodegradable Shape-Memory Polymers Exhibiting Sharp Thermal Transitions and Controlled Drug Release. Biomacromolecules 2009; 10:1789-94. [DOI: 10.1021/bm9002078] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Koji Nagahama
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, and High Technology Research Center, Kansai University, Suita, Osaka 564-8680, Japan
| | - Yuichi Ueda
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, and High Technology Research Center, Kansai University, Suita, Osaka 564-8680, Japan
| | - Tatsuro Ouchi
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, and High Technology Research Center, Kansai University, Suita, Osaka 564-8680, Japan
| | - Yuichi Ohya
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, and High Technology Research Center, Kansai University, Suita, Osaka 564-8680, Japan
| |
Collapse
|
|
27
|
A. Tanobe VO, Sydenstricker THD, Amico SC, Vargas JVC, Zawadzki SF. Evaluation of flexible postconsumed polyurethane foams modified by polystyrene grafting as sorbent material for oil spills. J Appl Polym Sci 2009. [DOI: 10.1002/app.29180] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
|
28
|
Wagermaier W, Kratz K, Heuchel M, Lendlein A. Characterization Methods for Shape-Memory Polymers. SHAPE-MEMORY POLYMERS 2009. [DOI: 10.1007/12_2009_25] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
|
29
|
|
|
30
|
Abstract
In this paper, two samples of polyurethane (PU) crosslinked with hydroxy -functonal hyperbranched aliphatic polyester of the second pseudo generation were investigated. For the synthesis of these crosslinked PUs two different macrodiols were used: poly(tetramethyleneoxide) (PTMO) for PUPTMO and ethylene oxide-poly(dimethylsiloxane)-ethylene oxide (PDMS-EO) for PUPDMS-EO sample. Synthesized samples behave as elastomers and have yellow color. Obtained results show that swelling degree of the sample PUPDMS-EO in N-methyl-2-pyrrolidinon (NMP) determined at room temperature is higher than for the sample PUPTMO. It has been also observed that thermal properties of these polyurethane networks can be changed by incorporation of siloxane sequences in their structure.
Collapse
|
|
31
|
Chen S, Hu J, Liu Y, Liem H, Zhu Y, Meng Q. Effect of molecular weight on shape memory behavior in polyurethane films. POLYM INT 2007. [DOI: 10.1002/pi.2248] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|