1
|
Wu X, Li J, Ren H, Jiao Q. Comparative Study on Thermal Response Mechanism of Two Binders during Slow Cook-Off. Polymers (Basel) 2022; 14:polym14173699. [PMID: 36080774 PMCID: PMC9460848 DOI: 10.3390/polym14173699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/17/2022] [Accepted: 08/20/2022] [Indexed: 11/24/2022] Open
Abstract
The HTPE (hydroxyl-terminated polyether) propellant had a lower ignition temperature (150 °C vs. 240 °C) than the HTPB (hydroxy-terminated polybutadiene) propellant in the slow cook-off test. The reactions of the two propellants were combustion and explosion, respectively. A series of experiments including the changes of colors and the intensity of infrared characteristic peaks were designed to characterize the differences in the thermal response mechanisms of the HTPB and HTPE binder systems. As a solid phase filler to accidental ignition, the weight loss and microscopic morphology of AP (30~230 °C) were observed by TG and SEM. The defects of the propellant caused by the cook-off were quantitatively analyzed by the box counting method. Above 120 °C, the HTPE propellant began to melt and disperse in the holes, filling the cracks, which generated during the decomposition of AP at a low temperature. Melting products were called the “high-temperature self-repair body”. A series of analyses proved that the different thermal responses of the two binders were the main cause of the slow cook-off results, which were likewise verified in the propellant mechanical properties and gel fraction test. From the microscopic point of view, the mechanism of HTPE’s slow cook-off performance superior to HTPB was revealed in this article.
Collapse
Affiliation(s)
- Xinzhou Wu
- State Key Laboratory of Explosion of Science and Technology, Beijing Institute of Technology, Beijing 100081, China
| | - Jun Li
- Science and Technology on Aerospace Chemical Power Laboratory, China Aerospace Science and Technology Corporation, Xiangyang 441003, China
| | - Hui Ren
- State Key Laboratory of Explosion of Science and Technology, Beijing Institute of Technology, Beijing 100081, China
- Correspondence:
| | - Qingjie Jiao
- State Key Laboratory of Explosion of Science and Technology, Beijing Institute of Technology, Beijing 100081, China
| |
Collapse
|
2
|
Ganivada MN, Dhara M, Jana S, Jana T. Synthetic routes to modify hydroxyl terminated polybutadiene for various potential applications. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.2013730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Mutyala Naidu Ganivada
- Advanced Centre of Research in High Energy Materials, University of Hyderabad, Hyderabad, India
| | - Moumita Dhara
- School of Chemistry, University of Hyderabad, Hyderabad, India
| | - Sourav Jana
- Advanced Centre of Research in High Energy Materials, University of Hyderabad, Hyderabad, India
| | - Tushar Jana
- Advanced Centre of Research in High Energy Materials, University of Hyderabad, Hyderabad, India
- School of Chemistry, University of Hyderabad, Hyderabad, India
| |
Collapse
|
3
|
|
4
|
Rahmatpanah Z, Nikje MMA. Thermally Stable Magnetic Polyurethane Nanocomposites Prepared from Functionalized Polybutadiene: Novel Approach to the Polybutadiene Chemical Modification. RUSS J APPL CHEM+ 2021. [DOI: 10.1134/s1070427221060173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
5
|
Xu L, Jie S, Bu Z, Li BG. Preparation of primary amine-terminated polybutadiene from cis-polybutadiene. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110484] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
6
|
Liu Y, Zheng J, Zhang X, Du Y, Yu G, Li K, Jia Y, Zhang Y. Bioinspired modified graphene oxide/polyurethane composites with rapid self-healing performance and excellent mechanical properties. RSC Adv 2021; 11:14665-14677. [PMID: 35423966 PMCID: PMC8698205 DOI: 10.1039/d1ra00944c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 04/02/2021] [Indexed: 11/28/2022] Open
Abstract
Self-healing efficiency and mechanical strength are always a pair of mechanical contradictions of a polymer. Herein, a series of novel mussel-inspired modified graphene oxide/polyurethane composites were successfully fabricated via rational molecular design and introducing hyperbranched polymer-modified graphene oxide. The composites exhibit outstanding self-healing performances with a self-healing efficiency of 87.9%. Especially, their self-healing properties possess exceptional water-insensitivity, which presents a high self-healing efficiency of 92.5% under 60 °C water for 2 h and 74.6% under 25 °C water for 6 h. Furthermore, the tensile strength of the composites increased by 107.7% with a high strain of 2170%. In addition, the composites show a remarkable recovery capability of 76.3% and 83.7% under tensile and compression loading, respectively, after 20 cycles. This strategy shows prominent application potential in high-performance solid propellants, protective coating, electronic skin, soft sensors and other water-insensitive devices. We successfully modified graphene oxide with amino-terminated hyperbranched polyamide(MGO), and obtained novel mussel-inspired MGO/polyurethane composites with outstanding self-healing and mechanical performances via rational molecular design.![]()
Collapse
Affiliation(s)
- Yahao Liu
- Shijiazhuang Campus, Army Engineering University Shijiazhuang 050003 China
| | - Jian Zheng
- Shijiazhuang Campus, Army Engineering University Shijiazhuang 050003 China
| | - Xiao Zhang
- Engineering University of PAP Xi'an 710086 China
| | - Yongqiang Du
- Shijiazhuang Campus, Army Engineering University Shijiazhuang 050003 China
| | - Guibo Yu
- Shijiazhuang Campus, Army Engineering University Shijiazhuang 050003 China
| | - Ke Li
- College of Naval Architecture and Ocean Engineering, Naval University of Engineering Wuhan 430033 China
| | - Yunfei Jia
- Shijiazhuang Campus, Army Engineering University Shijiazhuang 050003 China
| | - Yu Zhang
- Shijiazhuang Campus, Army Engineering University Shijiazhuang 050003 China
| |
Collapse
|
7
|
Liu Y, Zheng J, Zhang X, Du Y, Yu G, Li K, Jia Y, Zhang Y. Hyperbranched polyamide modified graphene oxide-reinforced polyurethane nanocomposites with enhanced mechanical properties. RSC Adv 2021; 11:14484-14494. [PMID: 35424010 PMCID: PMC8697711 DOI: 10.1039/d1ra00654a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 04/06/2021] [Indexed: 12/24/2022] Open
Abstract
As is well known, it is difficult to simultaneously improve both the strength and elongation at break of polymers filled with nanomaterials. This work obtained high-performance composites with enhanced strength and elongation at break via cross-linking hydroxyl-terminated polybutadiene (HTPB) chains with hyperbranched-polyamide-modified graphene oxide (HGO), and the preparation, characterization, and mechanical properties of the composites serving as a composite solid-propellant binder have been described in detail. Compared with pure HTPB polyurethane (P-HTPB), the tensile strength and elastic modulus of the composite containing 0.1 wt% HGO (H-0.1/HTPB) increase by 57.8% and 65.3%, respectively. Notably, the elongation at break of the H-0.1/HTPB composite can reach up to 1292.6%, which is even higher than that of P-HTPB. Moreover, the capabilities of the composites to resist deformation have also been enhanced significantly. The glass transition temperatures of the composites are still extremely low (∼-73 °C), which is beneficial for their applications. It can be expected that this study can provide an effective fabrication approach and strategy for preparing high-performance polyurethane composites.
Collapse
Affiliation(s)
- Yahao Liu
- Shijiazhuang Campus of Army Engineering University Shijiazhuang 050003 China
| | - Jian Zheng
- Shijiazhuang Campus of Army Engineering University Shijiazhuang 050003 China
| | - Xiao Zhang
- Engineering University of PAP Xi'an 710086 China
| | - Yongqiang Du
- Shijiazhuang Campus of Army Engineering University Shijiazhuang 050003 China
| | - Guibo Yu
- Shijiazhuang Campus of Army Engineering University Shijiazhuang 050003 China
| | - Ke Li
- College of Naval Architecture and Ocean Engineering, Naval University of Engineering Wuhan 430033 China
| | - Yunfei Jia
- Shijiazhuang Campus of Army Engineering University Shijiazhuang 050003 China
| | - Yu Zhang
- Shijiazhuang Campus of Army Engineering University Shijiazhuang 050003 China
| |
Collapse
|
8
|
Mussel-inspired and aromatic disulfide-mediated polyurea-urethane with rapid self-healing performance and water-resistance. J Colloid Interface Sci 2021; 593:105-115. [PMID: 33744521 DOI: 10.1016/j.jcis.2021.03.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/19/2021] [Accepted: 03/01/2021] [Indexed: 11/21/2022]
Abstract
Although lots of methods have been developed for self-healing materials, it remains a formidable challenge to achieve a thermosetting material with water-insensitive and self-healing properties at room temperature. Nature always provides intelligent strategies for developing advanced materials with superior properties. Herein, a novel self-healable polyurea-urethane was rationally designed by combining mussel adhesive protein-mimetic structure and dynamic aromatic disulfide bonds. It achieves high self-healing efficiency of 98.4% at room temperature for only 6 h and 90% at 60℃ for only 30 min without any external stimuli. Impressively, this self-healing capability possesses exceptional water-resistance, which presents high self-healing efficiency of 98.1% for 2 h and 82.1% for 6 h in 60℃ and 25℃ water, respectively. Besides, the designed polyurea-urethane exhibits excellent mechanical properties such as high elongation at break of 2400%, notch-insensitive stretching elongation of 1500% and notable recovery capability. This strategy shows promising application potential in solid propellants, protective coating, electronic skin, soft sensors and other water-resistant devices.
Collapse
|
9
|
Zhang P, Tan W, Zhang X, Chen J, Yuan J, Deng J. Chemical Modification of Hydroxyl-Terminated Polybutadiene and Its Application in Composite Propellants. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c06172] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pingan Zhang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People’s Republic of China
| | - Wenjiayi Tan
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300222, People’s Republic of China
| | - Xilong Zhang
- Hu Bei Sanjiang Aerospace Jianghe Chemical Technology Co., Ltd., Yichang 444200, People’s Republic of China
| | - Juan Chen
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People’s Republic of China
| | - Jianmin Yuan
- College of Material Science and Engineering, Hunan University, Changsha 410082, People’s Republic of China
| | - Jianru Deng
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People’s Republic of China
| |
Collapse
|
10
|
Song X, Ma J, Long T, Xu X, Zhao S, Liu H. Mechanochemical Cellular Membrane Internalization of Nanohydrogels: A Large-Scale Mesoscopic Simulation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:123-134. [PMID: 33307670 DOI: 10.1021/acsami.0c16688] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
By combining large-scale dissipative particle dynamics and steered molecular dynamics simulations, we investigate the mechanochemical cellular internalization pathways of homogeneous and heterogeneous nanohydrogels and demonstrate that membrane internalization is determined by the crosslink density and encapsulation ability of nanohydrogels. The homogeneous nanohydrogels with a high crosslink density and low encapsulation ability behave as soft nanoparticles partially wrapped by the membrane, while those with a low crosslink density and high encapsulation ability permeate into the membrane. Regardless of the crosslink density, the homogeneous nanohydrogels undergo typical dual morphological deformations. The local lipid nanodomains are identified at the contacting region between the membrane and nanohydrogels because of different diffusion behaviors between lipid and receptor molecules during the internalization process. The yolk@shell heterogeneous nanohydrogels present a different mechanochemical cellular internalization pathway. The yolk with strong affinity is directly in contact with the membrane, resulting in partial membrane wrapping, and the contacting area is much reduced when compared to homogenous nanohydrogels, leading to a smaller lipid nanodomain and thus avoiding related cellular toxicity. Our findings provide a critical mechanism understanding of the biological pathways of nanohydrogels and may guide the molecular design of the hydrogel-based materials for controlled release drug delivery, tissue engineering, and cell culture.
Collapse
Affiliation(s)
- Xianyu Song
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, School of Environmental and Chemical Engineering, Chongqing Three Gorges University, Chongqing 404100, China
| | - Jule Ma
- State Key Laboratory of Chemical Engineering and School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ting Long
- State Key Laboratory of Chemical Engineering and School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaofei Xu
- State Key Laboratory of Chemical Engineering and School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Shuangliang Zhao
- State Key Laboratory of Chemical Engineering and School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, China
| | - Honglai Liu
- State Key Laboratory of Chemical Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| |
Collapse
|
11
|
Kakou CA, Raji M, Abdellaoui H, Bouhfid R, Qaiss A, Rodrigue D. The Effect of Physical Aging on the Mechanical Properties of Raw, Treated and Compatibilized Coir Fibers-Based Polyisoprene Bio-Composites. INT POLYM PROC 2020. [DOI: 10.3139/217.3947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- C. A. Kakou
- Laboratory of Mechanics and Material Science, Houphouet-Boigny National Polytechnic Institute (INP-HB), Yamoussoukro, Ivory-Coast
| | - M. Raji
- Composites and Nanocomposites Center, Moroccan Foundation for Advanced Science, Innovation and Research, Rabat, Morocco
| | - H. Abdellaoui
- Composites and Nanocomposites Center, Moroccan Foundation for Advanced Science, Innovation and Research, Rabat, Morocco
| | - R. Bouhfid
- Composites and Nanocomposites Center, Moroccan Foundation for Advanced Science, Innovation and Research, Rabat, Morocco
| | - A. Qaiss
- Composites and Nanocomposites Center, Moroccan Foundation for Advanced Science, Innovation and Research, Rabat, Morocco
| | - D. Rodrigue
- Department of Chemical Engineering and CERMA, Université Laval, Quebec, Canada
| |
Collapse
|
12
|
Dhara M, Giri N, Dutta A, Patra A, Sastry P, Ingole MS, Jana T. Enhancing segmental compatibility and tuning the structure-property relationship in ferrocenylsilane tethered polyurethane. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122807] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
13
|
Zhang Z, Liu J, Gao W, Sun L, Li Z. Action of silicic acid derived from sodium silicate precursor toward improving performances of porous gelatin membrane. J Appl Polym Sci 2020. [DOI: 10.1002/app.48912] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zetian Zhang
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu China
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu China
| | - Jun Liu
- College of Chemistry and Environmental Protection EngineeringSouthwest Minzu University Chengdu China
| | - Wenwei Gao
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu China
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu China
| | - Liying Sun
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu China
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu China
| | - Zhengjun Li
- National Engineering Laboratory for Clean Technology of Leather ManufactureSichuan University Chengdu China
- Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan University Chengdu China
| |
Collapse
|
14
|
Dhara M, Giri N, Narasimha Rao B, Patra A, Sastry P, Ingole MS, Jana T. Effect of segmental compatibility imposed over metal based polybutadiene polyurethane. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109380] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
15
|
Rao BN, Sastry P, Jana T. Structure-property relationships of ferrocene functionalized segmented polyurethane. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.03.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
16
|
Cheng T. Review of novel energetic polymers and binders - high energy propellant ingredients for the new space race. Des Monomers Polym 2019; 22:54-65. [PMID: 30863243 PMCID: PMC6407582 DOI: 10.1080/15685551.2019.1575652] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 10/31/2018] [Indexed: 11/30/2022] Open
Abstract
Current solid rocket propellant formulations still employ traditional ingredients utilized since the 1960s, such as hydroxyl terminated polybutadiene (HTPB). Recent advances in energetic polymer see many binders capable of providing higher specific impulse and burn rates over HTPB. As shown by calculations, even slight increases in specific impulse can drastically increase the maximum payload of a launch system. Therefore, replacing HTPB with energetic binders could provide heavy space missions the needed extra boost. Energetic binders could also be paired with chlorine-free energetic oxidizers to synergistically provide a specific impulse exceedingly higher than the current formulation while reducing pollution. A comprehensive evaluation of the synthesis, mechanical properties, and performance of various trending and overlooked energetic polymers is described. Several outstanding candidates show promising properties to replace HTPB.
Collapse
|
17
|
Szyszkowska A, Czerniecka-Kubicka A, Pyda M, Byczyński Ł, Gancarczyk K, Sedlarik V, Zarzyka I. Linear polyurethanes with imidazoquinazoline rings: preparation and properties evaluation. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02702-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
18
|
Ferrocene grafted hydroxyl terminated polybutadiene: A binder for propellant with improved burn rate. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.01.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
19
|
Kunduru KR, Rao BN, Jana T. Self Assembly in Functionalized Butadiene Based Polyurethanes. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/masy.201800090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Tushar Jana
- School of Chemistry; University of Hyderabad; Hyderabad India
| |
Collapse
|
20
|
Synthesis and characterization of a novel thermally stable water dispersible polyurethane and its magnetic nanocomposites. IRANIAN POLYMER JOURNAL 2018. [DOI: 10.1007/s13726-018-0650-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
21
|
Synthesis of hydroxyl-terminated polybutadiene bearing pendant carboxyl groups by combination of anionic polymerization and blue light photocatalytic thiol-ene reaction and its pH-triggered self-assemble behavior. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.04.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
22
|
Ou Y, Sun Y, Jiao Q. Properties related to linear and branched network structure of hydroxyl terminated polybutadiene. E-POLYMERS 2018. [DOI: 10.1515/epoly-2017-0223] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe correlation between properties and the network structure of hydroxyl terminated polybutadiene (HTPB) based polyurethanes (PUs) was studied through linear and branched structure polymer matrixes formed by toluene diisocyanate (TDI) and an aliphatic polyisocyanate curing agent (N100). The curing reactions were monitored using differential scanning calorimetry (DSC) and viscosity build-up. The swelling capacity of PUs decreased with the increase of crosslink density with a stable solubility parameter according to the equilibrium swelling test. Tensile properties of PUs cured by TDI and N100 in different stoichiometric ratios of NCO/OH groups were tested. Both breaking elongation and tensile strength were remarkably improved by N100. The thermal decomposition processes of HTPB/TDI and HTPB/N100 indicated that a branched structure has higher depolymerization temperature, and hence, improved thermal stability. In addition, PU with a branched network prevented the migration of the plasticizer during isothermal accelerated aging due to the higher crosslink density.
Collapse
Affiliation(s)
- Yapeng Ou
- State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
| | - Yalun Sun
- School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Qingjie Jiao
- State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
| |
Collapse
|
23
|
He Y, Li Q, Zhu C, Li H, Zheng S, Xue Z, Hu Y. Synthesis and properties of thermoplastic polyethylene based polyurethanes (PE-PUs). JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1464-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
24
|
Sikder BK, Jana T. Effect of Solvent and Functionality on the Physical Properties of Hydroxyl-Terminated Polybutadiene (HTPB)-Based Polyurethane. ACS OMEGA 2018; 3:3004-3013. [PMID: 31458566 PMCID: PMC6641248 DOI: 10.1021/acsomega.8b00022] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 02/26/2018] [Indexed: 06/07/2023]
Abstract
The present article reports the investigation on the effects of solvent and position of functionality on various physical properties of polyurethanes (PUs) based on hydroxyl-terminated polybutadiene (HTPB). The PU films (curative) were prepared by coupling HTPB (P0) with isophorone diisocyanate (IPDI) in various solvent media. The PUs obtained in different solvent media displayed similar thermal profile and glass transition temperature (T g), but their tensile properties varied significantly. Optimized tensile properties were observed when tetrahydrofuran was used as the solvent media. In the course, the investigation of the functionality effect, tetrazole (M1, M2, and M3) were covalently attached at the terminal carbon of HTPB to obtain three modified HTPBs (P1, P2, and P3), thereby coupling with IPDI to obtain the corresponding tetrazole functional PUs films. Pristine (P0-PU) and functional PU (P1-PU, P2-PU, and P3-PU) films have similar thermal profile and T g (-76 °C), but they have a notable enhancement in tensile properties; for example, tensile strength and elongation at break of P0-PU were found to be 3.21 MPa and 727%, respectively, whereas these values were 4.84 MPa and 958%, respectively, in the case of P3-PU. It was observed that on increasing the number of methylene group from 1 to 3 between HTPB and tetrazole moiety, the strength of hydrogen bonding increases, which facilitates better packing of urethane network in the PU and hence improves the tensile properties. Also, modification of pristine HTPB with tetrazole derivatives enhanced the calorific values of the resulting PUs.
Collapse
Affiliation(s)
- Bikash Kumar Sikder
- Advanced Centre of Research in High Energy Materials and School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Tushar Jana
- Advanced Centre of Research in High Energy Materials and School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| |
Collapse
|
25
|
Zhang X, Gong T, Chi H, Li T. Nanostructured polyurethane perylene bisimide ester assemblies with tuneable morphology and enhanced stability. ROYAL SOCIETY OPEN SCIENCE 2018; 5:171686. [PMID: 29657775 PMCID: PMC5882699 DOI: 10.1098/rsos.171686] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 02/09/2018] [Indexed: 06/08/2023]
Abstract
Size control has been successfully achieved in inorganic materials, but it remains a challenge in polymer nanomaterials due to their polydispersity. Here, we report a facile approach to tailor the diameters of polyurethane (PU) nanoparticles (490 nm, 820 nm and 2.1 µm) via perylene bisimide (PBI) assisted self-assembly. The formed morphologies such as spindle, spherical and core-shell structures depend on the ratio of PBI and polymer concentrations. It is shown that the formation of PU nanoparticles is directed by π-π stacking of PBI and the morphology transition is not only affected by the amount of PBI incorporated, but also influenced by solvent, which controls the initial evaporation balance. Furthermore, the prepared PUs exhibit retained optical stability and enhanced thermal stability. The PUs, designed to have conjugated PBI segments in backbones, were synthesized via ring-opening and condensation reactions. Compared with the neat PU, gel permeation chromatography shows narrower molecular weight distribution. Fluorescence spectra and ultraviolet-visible spectra indicate retained maximum emission wavelength of PBI at 574 nm and 5.2% quantum yields. Thermo-gravimetric analysis and differential scanning calorimetry reveal 79°C higher decomposition temperature and 22°C higher glass transition temperature. This study provides a new way to fabricate well-defined nanostructures of functionalized PUs.
Collapse
Affiliation(s)
| | | | - Hong Chi
- Authors for correspondence: Hong Chi e-mail:
| | - Tianduo Li
- Authors for correspondence: Tianduo Li e-mail:
| |
Collapse
|
26
|
Oprea S, Potolinca VO, Gradinariu P, Oprea V. Biodegradation of pyridine-based polyether polyurethanes by the Alternaria tenuissima
fungus. J Appl Polym Sci 2017. [DOI: 10.1002/app.46096] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Stefan Oprea
- “P Poni” Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda, 41A; Iasi Romania
| | | | | | - Veronica Oprea
- “Gr. T. Popa” University of Medicine and Pharmacy; Iasi Romania
| |
Collapse
|
27
|
Malkappa K, Rao BN, Suresh G, Ramana CV, Jana T. Organic/inorganic hybrid nanocolloids of water dispersible polyurethanes with antibacterial activity. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4229-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
28
|
Lucio B, de la Fuente JL. Structural and thermal degradation properties of novel metallocene-polyurethanes. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2016.12.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
29
|
Zhu XZ, Fan XD, Zhao N, Min X, Liu J, Wang ZC. Influence of mono-lithium based initiators with different steric volumes on 1,4 unit content of hydroxyl terminated polybutadiene using anionic polymerization. RSC Adv 2017. [DOI: 10.1039/c7ra11117g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The influence of steric structural factors of mono-lithium based anionic initiators on 1,4 unit content of hydroxyl terminated polybutadiene was investigated.
Collapse
Affiliation(s)
- Xiu-zhong Zhu
- The Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
| | - Xiao-dong Fan
- The Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
| | - Na Zhao
- The Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
| | - Xin Min
- The Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
| | - Jie Liu
- The Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
| | - Zi-chao Wang
- The Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
| |
Collapse
|
30
|
Non-isothermal DSC and rheological curing of ferrocene-functionalized, hydroxyl-terminated polybutadiene polyurethane. REACT FUNCT POLYM 2016. [DOI: 10.1016/j.reactfunctpolym.2016.08.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
31
|
Malkappa K, Rao BN, Jana T. Functionalized polybutadiene diol based hydrophobic, water dispersible polyurethane nanocomposites: Role of organo-clay structure. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.07.039] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
32
|
Cao Z, Zhou Q, Jie S, Li BG. High cis-1,4 Hydroxyl-Terminated Polybutadiene-Based Polyurethanes with Extremely Low Glass Transition Temperature and Excellent Mechanical Properties. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.5b04921] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhe Cao
- State Key Laboratory
of Chemical Engineering, College
of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qinzhuo Zhou
- State Key Laboratory
of Chemical Engineering, College
of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Suyun Jie
- State Key Laboratory
of Chemical Engineering, College
of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Bo-Geng Li
- State Key Laboratory
of Chemical Engineering, College
of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| |
Collapse
|
33
|
Oprea S, Potolinca VO, Varganici CD. Synthesis and properties of polyurethane urea with pyridine-2,6-dicarboxamide moieties in their structure. RSC Adv 2016. [DOI: 10.1039/c6ra23660j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The inclusion of 2,6-pyridinedicarboxamide into polyurethanes structure strongly influenced their morphology, surface and thermo-mechanical properties. The 2,6-pyridinedicarboxamide units adopt syn-syn conformations into polyurethane matrix.
Collapse
Affiliation(s)
- S. Oprea
- “Petru Poni” Institute of Macromolecular Chemistry
- Iasi
- Romania
| | - V. O. Potolinca
- “Petru Poni” Institute of Macromolecular Chemistry
- Iasi
- Romania
| | - C.-D. Varganici
- “Petru Poni” Institute of Macromolecular Chemistry
- Iasi
- Romania
| |
Collapse
|