1
|
Upoma MA, He Z, Tran H, Sivells T, Cyran JD, Pack MY. Effects of Dye Addition on the Rheological Properties of Aqueous Polymer Solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:19377-19387. [PMID: 39226404 DOI: 10.1021/acs.langmuir.4c01533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2024]
Abstract
In many commercial applications, polymer-dye interactions are frequently encountered from food to wastewater treatment, and while shear rheology has been well characterized, the extensional properties are not well known. The extensional viscosity ηE and relaxation time λE are the extensional rheological parameters that provide valuable insights into how aqueous polymers respond during deformation, and this study investigated the effect of dyes on the extensional rheology of three different aqueous polymer solutions (e.g., anionic, cationic, and neutral) paired with two different dye salts (e.g., anionic and cationic) using drop pinch-off experiments. We have found that the influence of dyes on the pinch-off dynamics is complex but generally leads to a decrease in, for example, the apparent extensional relaxation time. We have utilized the dripping-onto-substrate method to probe the uniaxial deformation of widely used polymers such as xanthan gum (XG), poly(diallyldimethylammonium chloride) (PDADMAC), and poly(ethylene oxide) (PEO) as the anionic, cationic, and neutral polymers, respectively, paired with either fluorescein (Fl) or methylene blue (MB) as the anionic and cationic dyes, respectively. Polymer-dye pairs with opposite charges (e.g., XG-MB and PDADMAC-Fl) displayed a pronounced decrease in pinch-off times, but even PEO, which is a neutral polymer, resulted in decreased pinch-off times, which was restored by the addition of NaCl. The pinch-off times for the Boger fluid (mixture of poly(ethylene glycol) and PEO), however, were surprisingly uninfluenced by dyes. These results showed that not only did the small addition of dyes strongly decrease the polymer relaxation times, but the relative importance of the dye salts on the polymer pinch-off dynamics was also different from that of pure salts such as NaCl.
Collapse
Affiliation(s)
- Marufa Akter Upoma
- Department of Mechanical Engineering, Baylor University, Waco 76798, Texas, United States
| | - Ziwen He
- Department of Mechanical Engineering, Baylor University, Waco 76798, Texas, United States
| | - Huy Tran
- Department of Mechanical Engineering, Baylor University, Waco 76798, Texas, United States
| | - Tiara Sivells
- Department of Chemistry, Boise State University, Boise 83725, Idaho, United States
| | - Jenée D Cyran
- Department of Chemistry, Boise State University, Boise 83725, Idaho, United States
| | - Min Young Pack
- Department of Mechanical Engineering, Baylor University, Waco 76798, Texas, United States
| |
Collapse
|
2
|
Cai M, He X, Liu B. Revealing the Effect of the Molecular Weight Distribution on the Chain Diffusion and Crystallization Process under a Branched Trimodal Polyethylene System. Polymers (Basel) 2024; 16:265. [PMID: 38257063 PMCID: PMC10818820 DOI: 10.3390/polym16020265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/15/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
With the increasing demand for high-end materials, trimodal polyethylene (PE) has become a research hotspot in recent years due to its superior performance compared with bimodal PE. By means of molecular dynamics (MD) simulations, we aim to expound the effect of the molecular weight distribution (MWD) on the mechanism of nucleation and crystallization of trimodal PE. The crystallization rate is faster when short-chain branching is distributed on a single backbone compared to that on two backbones. In addition, as the content of high molecular weight backbone decreases, the time required for nucleation decreases, but the crystallization rate slows down. This is because low molecular weight backbones undergo intra-chain nucleation and crystallize earlier due to the high diffusion capacity, which leads to entanglement that prevents the movement of medium or high molecular weight backbones. Furthermore, crystallized short backbones hinder the movement and crystallization of other backbones. What is more, a small increase in the high molecular weight branched backbone of trimodal PE can make the crystallinity greater than that of bimodal PE, but when the content of high molecular weight backbone is too high, the crystallinity decreases instead, because the contribution of short and medium backbones to high crystallinity is greater than that of long backbones.
Collapse
Affiliation(s)
- Min Cai
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China;
| | - Xuelian He
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China;
| | - Boping Liu
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| |
Collapse
|
3
|
Nagy D, Weltsch Z. Crystallinity and Oscillatory Shear Rheology of Polyethylene Blends. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6402. [PMID: 37834539 PMCID: PMC10573154 DOI: 10.3390/ma16196402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 09/11/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023]
Abstract
Crystallinity and rheological behavior are significant for processing semi-crystalline polymers with fine mechanical properties. There is always an economical need to create a less expensive new material with better properties. Non-isothermal crystallization and oscillatory shear rheology of different branch-type polyethylene-polyethylene blends were investigated. Samples of high-density and low-density polyethylene (HDPE/LDPE) (20/80, 40/60, 60/40 and 80/20 weight ratios) and two types of high-density and linear low-density polyethylene (HDPE/LLDPE) (40/60 and 60/40 weight ratios) were prepared via extrusion. The materials were tested by differential scanning calorimetry (DSC) at several cooling rates (5, 10, 20, 30 and 40°/min) and by oscillation rheometry (ARES G2) at low angular frequency range to prove their miscibility or immiscibility. It was found that the one-peak melting endotherm of the 80-20% HDPE-LDPE blend could indicate miscibility in the solid phase, while the other HDPE-LDPE blends with two-peak curves are partially or not miscible. In contrast, all the HDPE-LLDPE blends indicate co-crystallization, but the 40-60% HDPE-LLDPE butylene blend is probably immiscible. It was revealed that complex viscosity decreases with angular frequency: linearly for HD-LD blends and not linearly for HD-LLDPE blends. The complex viscosity shows linear behavior with composition for HD-LLDPE blends, while there is a positive-negative deviation for HD-LD blends. In the liquid phase, according to rheological measurements, the HDPE-LDPE blends are not or partially miscible, while the HDPE-LLDPE blends are probably miscible.
Collapse
Affiliation(s)
- Dorottya Nagy
- Department of Innovative Vehicles and Materials, Faculty of Engineering and Computer Science, John von Neumann University, 10 Izsáki Street, 6000 Kecskemét, Hungary;
| | - Zoltán Weltsch
- Vehicle Industry Research Center, Széchenyi István University, Egyetem Tér 1, 9026 Győr, Hungary
| |
Collapse
|
4
|
Cai M, He X, Liu Z, Liu B. Unraveling the influential mechanism of short-chain branching on the crystallization of trimodal polyethylene by molecular dynamics simulation. Phys Chem Chem Phys 2023. [PMID: 37376922 DOI: 10.1039/d3cp00664f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Trimodal polyethylene (PE) has become the focus of research in recent years due to its excellent performance. By means of molecular dynamics simulations, we aim to expound the molecular mechanism of short-chain branching (SCB) in the nucleation process, crystallization process and chain entanglement of trimodal PE. In this study, a series of polyethylene models including different short-chain branching concentrations (SCBCs), short-chain branching lengths (SCBLs), and short-chain branching distributions (SCBDs) were considered. The increase of SCBCs greatly reduces the ability of flipping and movement of PE chains, resulting in more time for nucleation and crystallization and a significant reduction of crystallinity. In contrast, an increase in the SCBL only slightly slows down the diffusion rate of the chain, which leads to a little increase in crystallization time. Most important of all, in the study of SCBD, we find that the distribution of SCBs on a high molecular weight chain, which is the characteristic of trimodal PE, is conducive to the chain entanglement and prevents the occurrence of micro phase separation compared with the case where the SCBs are distributed on a medium molecular weight chain. The mechanism of chain entanglement is proposed to explain the effect of SCBs on tie chain entanglement.
Collapse
Affiliation(s)
- Min Cai
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, P. R. China.
| | - Xuelian He
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, P. R. China.
| | - Zhen Liu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, P. R. China.
| | - Boping Liu
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
| |
Collapse
|
5
|
Metallocene Polyolefins Reinforced by Low-Entanglement UHMWPE through Interfacial Entanglements. ADVANCES IN POLYMER TECHNOLOGY 2022. [DOI: 10.1155/2022/9344096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
By introducing low-entanglement UHMWPE, the mechanical properties of polyolefins are improved to varying degrees. For polypropylene, the lack of interaction between UHMWPE and polypropylene results in an unsatisfactory reinforcement effect, and the disentangled state makes it easier for the particles to form defects driven by a chain explosion. In contrast, regarding polyethylene and elastomer containing ethylene segments, low-entanglement UHMWPE plays a better role in reinforcement. A series of measurements including scanning electron microscopy (SEM), rheological measurements, differential scanning calorimetry (DSC), and mechanical measurement were used to investigate the mechanisms for the different enhancement effects. It originates from interdiffusion and entanglement forming of polyethylene segments across the interface, endowing the material with different aggregated and defect structures. For instance, EPDM possesses a higher optimal dosage of UHMWPE particles reflected in good interfacial interdiffusion with UHMWPE particles, leading to significant optimized mechanical performance.
Collapse
|
6
|
Piriyakulkit P, Kanoknukulchai K, Potisatityuenyong A, Anantawaraskul S. Cocrystallization of Polyethylene Blends during TREF–GPC Cross‐Fractionation Characterization. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Piriyakorn Piriyakulkit
- Center of Excellence for Petroleum Petrochemicals and Advanced Materials (PPAM) Department of Chemical Engineering Faculty of Engineering Kasetsart University Bangkok 10900 Thailand
| | | | | | - Siripon Anantawaraskul
- Center of Excellence for Petroleum Petrochemicals and Advanced Materials (PPAM) Department of Chemical Engineering Faculty of Engineering Kasetsart University Bangkok 10900 Thailand
- Center for Advanced Studies in Nanotechnology for Chemical Food and Agricultural Industries Kasetsart University Bangkok 10900 Thailand
| |
Collapse
|
7
|
Jandaghian MH, Maddah Y, Sepahi A, Houshmandmoayed S, Nikzinat E, Masoori M, Afzali K, Rashedi R. Effects of polymerization parameters on the slow crack growth resistance and rheological properties of bimodal polyethylene resins. J Appl Polym Sci 2022. [DOI: 10.1002/app.51867] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Mohammad Hossein Jandaghian
- Department of Polymer Engineering and Color Technology Amirkabir University of Technology Tehran Iran
- Research and Development Center Jam Petrochemical Company Bushehr Iran
| | - Yasaman Maddah
- Department of Polymer Engineering and Color Technology Amirkabir University of Technology Tehran Iran
- Research and Development Center Jam Petrochemical Company Bushehr Iran
| | | | | | - Ehsan Nikzinat
- Department of Polymer Engineering and Color Technology Amirkabir University of Technology Tehran Iran
- Research and Development Center Jam Petrochemical Company Bushehr Iran
| | - Maryam Masoori
- Research and Development Center Jam Petrochemical Company Bushehr Iran
| | - Kamal Afzali
- Research and Development Center Jam Petrochemical Company Bushehr Iran
| | - Reza Rashedi
- Department of Polymer Engineering and Color Technology Amirkabir University of Technology Tehran Iran
- Research and Development Center Jam Petrochemical Company Bushehr Iran
| |
Collapse
|
8
|
Tao G, Chen Y, Mu J, Zhang L, Ye C, Li W. Exploring the entangled state and molecular weight of
UHMWPE
on the microstructure and mechanical properties of
HDPE
/
UHMWPE
blends. J Appl Polym Sci 2021. [DOI: 10.1002/app.50741] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gan Tao
- Department of Polymer Science and Engineering, School of Material Science and Chemical Engineering Ningbo University Ningbo China
| | - Yuming Chen
- Department of Polymer Science and Engineering, School of Material Science and Chemical Engineering Ningbo University Ningbo China
- Ningbo Research Institute Zhejiang University Ningbo China
| | - Jingshan Mu
- Department of Polymer Science and Engineering, School of Material Science and Chemical Engineering Ningbo University Ningbo China
| | - Letian Zhang
- State Key Laboratory of Polyolefins and Catalysis, Shanghai Key Laboratory of Catalysis Technology for Polyolefins Shanghai Research Institute of Chemical Industry Co., Ltd. Shanghai China
| | - Chunlin Ye
- State Key Laboratory of Polyolefins and Catalysis, Shanghai Key Laboratory of Catalysis Technology for Polyolefins Shanghai Research Institute of Chemical Industry Co., Ltd. Shanghai China
| | - Wei Li
- Department of Polymer Science and Engineering, School of Material Science and Chemical Engineering Ningbo University Ningbo China
- Ningbo Research Institute Zhejiang University Ningbo China
| |
Collapse
|
9
|
Yao J, Wang K, He X, Liu B. Evaluation and Control of the Molar Mass Bimodality and Properties of Polyethylene from Novel Chromocene‐Based Dual Sites Catalysts. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202000434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jiabin Yao
- Shanghai Key Laboratory of Multiphase Material Chemical Engineering East China University of Science and Technology Shanghai 200237 China
| | - Kai Wang
- Shanghai Key Laboratory of Multiphase Material Chemical Engineering East China University of Science and Technology Shanghai 200237 China
| | - Xuelian He
- Shanghai Key Laboratory of Multiphase Material Chemical Engineering East China University of Science and Technology Shanghai 200237 China
| | - Boping Liu
- College of Materials and Energy South China Agricultural University Guangzhou 510642 China
| |
Collapse
|
10
|
Freitas DMG, Oliveira ADB, Alves AM, Cavalcanti SN, Agrawal P, Mélo TJA. Linear low‐density polyethylene/high‐density polyethylene blends: Effect of high‐density polyethylene content on die swell and flow instability. J Appl Polym Sci 2021. [DOI: 10.1002/app.49910] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Daniel M. G. Freitas
- Departamento de Engenharia de Materiais Universidade Federal de Campina Grande Campina Grande Paraiba Brazil
| | - Akidauana D. B. Oliveira
- Departamento de Engenharia de Materiais Universidade Federal de Campina Grande Campina Grande Paraiba Brazil
| | - Amanda M. Alves
- Departamento de Engenharia de Materiais Universidade Federal de Campina Grande Campina Grande Paraiba Brazil
| | - Shirley N. Cavalcanti
- Departamento de Engenharia de Materiais Universidade Federal de Campina Grande Campina Grande Paraiba Brazil
| | - Pankaj Agrawal
- Departamento de Engenharia de Materiais Universidade Federal de Campina Grande Campina Grande Paraiba Brazil
| | - Tomás J. A. Mélo
- Departamento de Engenharia de Materiais Universidade Federal de Campina Grande Campina Grande Paraiba Brazil
| |
Collapse
|
11
|
Hu Y, Shao Y, Liu Z, He X, Liu B. Dominant Effects of Short-Chain Branching on the Initial Stage of Nucleation and Formation of Tie Chains for Bimodal Polyethylene as Revealed by Molecular Dynamics Simulation. Polymers (Basel) 2019; 11:E1840. [PMID: 31717356 PMCID: PMC6918436 DOI: 10.3390/polym11111840] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/01/2019] [Accepted: 11/05/2019] [Indexed: 11/21/2022] Open
Abstract
The molecular mechanism of short-chain branching (SCB), especially the effects of methylene sequence length (MSL) and short-chain branching distribution (SCBD) on the initial stage of nucleation, the crystallization process, and particularly the tie chain formation process of bimodal polyethylene (BPE), were explored using molecular dynamics simulation. This work constructed two kinds of BPE models in accordance with commercial BPE pipe resins: SCB incorporated in the long chain or in the short chains. The initial stage of nucleation was determined by the MSL of the system, as the critical MSL for a branched chain to nucleate is about 60 CH2. SCB incorporated in the long chain led to a delay of the initial stage of nucleation relative to the case of SCB incorporated in the short chains. The increase of branch length could accelerate the delay to nucleation. The location of short chain relative to the long chain depended on the MSL of the short chain. As the MSL of the system decreased, the crystallinity decreased, while the tie chains concentration increased. The tie chains concentration of the BPE model with branches incorporated in the long chain was higher than that with branches incorporated in the short chain.
Collapse
Affiliation(s)
- Yanling Hu
- Shanghai Key Laboratory of Multiphase Material Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Y.H.); (Y.S.); (Z.L.)
| | - Yunqi Shao
- Shanghai Key Laboratory of Multiphase Material Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Y.H.); (Y.S.); (Z.L.)
| | - Zhen Liu
- Shanghai Key Laboratory of Multiphase Material Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Y.H.); (Y.S.); (Z.L.)
| | - Xuelian He
- Shanghai Key Laboratory of Multiphase Material Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Y.H.); (Y.S.); (Z.L.)
| | - Boping Liu
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| |
Collapse
|
12
|
Hu Y, Shao Y, Liu Z, He X, Liu B. Effect of short-chain branching on the tie chains and dynamics of bimodal polyethylene: Molecular dynamics simulation. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.01.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
13
|
Vieira ES, Salmoria GV, de Mello Gindri I, Kanis LA. Preparation of ibuprofen-loaded HDPE tubular devices for application as urinary catheters. J Appl Polym Sci 2017. [DOI: 10.1002/app.45661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Edna Silva Vieira
- NIMMA, Department of Mechanical Engineering; Federal University of Santa Catarina; Florianópolis SC 88040-900 Brazil
| | - Gean Vitor Salmoria
- NIMMA, Department of Mechanical Engineering; Federal University of Santa Catarina; Florianópolis SC 88040-900 Brazil
- Biomechanics Engineering Laboratory; University Hospital (HU), Federal University of Santa Catarina; Florianópolis SC 88040-900 Brazil
| | - Izabelle de Mello Gindri
- Biomechanics Engineering Laboratory; University Hospital (HU), Federal University of Santa Catarina; Florianópolis SC 88040-900 Brazil
| | - Luiz Alberto Kanis
- TECFARMA Group; University of Southern Santa Catarina (UNISUL); Tubarão SC 88704-900 Brazil
| |
Collapse
|
14
|
Yang H, Hui L, Zhang J, Chen P, Li W. Effect of entangled state of nascent UHMWPE on structural and mechanical properties of HDPE/UHMWPE blends. J Appl Polym Sci 2017. [DOI: 10.1002/app.44728] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Huaqin Yang
- Department of Polymer Science and Engineering, School of Material Science and Chemical Engineering; Ningbo University; Ningbo Zhejiang 315211 People's Republic of China
| | - Lei Hui
- Department of Polymer Science and Engineering, School of Material Science and Chemical Engineering; Ningbo University; Ningbo Zhejiang 315211 People's Republic of China
| | - Jingjing Zhang
- Department of Polymer Science and Engineering, School of Material Science and Chemical Engineering; Ningbo University; Ningbo Zhejiang 315211 People's Republic of China
| | - Peng Chen
- Department of Polymer Science and Engineering, School of Material Science and Chemical Engineering; Ningbo University; Ningbo Zhejiang 315211 People's Republic of China
| | - Wei Li
- Department of Polymer Science and Engineering, School of Material Science and Chemical Engineering; Ningbo University; Ningbo Zhejiang 315211 People's Republic of China
| |
Collapse
|
15
|
Molecular Weight Distribution of Ethylene/1-Olefin Copolymers: Generalized Bimodality Criterion. MACROMOL THEOR SIMUL 2016. [DOI: 10.1002/mats.201600060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
16
|
Eslamian M, Bagheri R, Pircheraghi G. Co-crystallization in ternary polyethylene blends: tie crystal formation and mechanical properties improvement. POLYM INT 2016. [DOI: 10.1002/pi.5191] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mohammadjavad Eslamian
- Polymeric Materials Research Group, Department of Materials Science and Engineering; Sharif University of Technology; Tehran PO Box 11155-9466 Iran
| | - Reza Bagheri
- Polymeric Materials Research Group, Department of Materials Science and Engineering; Sharif University of Technology; Tehran PO Box 11155-9466 Iran
| | - Gholamreza Pircheraghi
- Polymeric Materials Research Group, Department of Materials Science and Engineering; Sharif University of Technology; Tehran PO Box 11155-9466 Iran
| |
Collapse
|
17
|
Phase structure and mechanical properties of disentangled ultra-high molecular weight polyethylene/polyhedral oligomeric silsesquioxane nanocomposites in a solid state. JOURNAL OF POLYMER RESEARCH 2015. [DOI: 10.1007/s10965-015-0867-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
18
|
Stürzel M, Mihan S, Mülhaupt R. From Multisite Polymerization Catalysis to Sustainable Materials and All-Polyolefin Composites. Chem Rev 2015; 116:1398-433. [DOI: 10.1021/acs.chemrev.5b00310] [Citation(s) in RCA: 391] [Impact Index Per Article: 43.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Markus Stürzel
- Freiburg
Materials Research Center (FMF) and Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Strasse 31, D-79104 Freiburg, Germany
| | - Shahram Mihan
- Basell
Polyolefine GmbH, Catalyst Systems, Industriepark Hoechst, D-65926 Frankfurt am Main, Germany
| | - Rolf Mülhaupt
- Freiburg
Materials Research Center (FMF) and Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Strasse 31, D-79104 Freiburg, Germany
- Sustainability Center Freiburg, Ecker-Strasse
4, D-79104 Freiburg, Germany
| |
Collapse
|
19
|
Tian Z, Chen KR, Liu BP, Luo N, Du WL, Qian F. Short-chain branching distribution oriented model development for Borstar bimodal polyethylene process and its correlation with product performance of slow crack growth. Chem Eng Sci 2015. [DOI: 10.1016/j.ces.2015.03.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
20
|
Djellali S, Sadoun T, Haddaoui N, Bergeret A. Viscosity and viscoelasticity measurements of low density polyethylene/poly(lactic acid) blends. Polym Bull (Berl) 2015. [DOI: 10.1007/s00289-015-1331-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
21
|
Stürzel M, Thomann Y, Enders M, Mülhaupt R. Graphene-Supported Dual-Site Catalysts for Preparing Self-Reinforcing Polyethylene Reactor Blends Containing UHMWPE Nanoplatelets and in Situ UHMWPE Shish-Kebab Nanofibers. Macromolecules 2014. [DOI: 10.1021/ma500769g] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Markus Stürzel
- Freiburg
Materials Research Center (FMF) and Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Strasse 31, D-79104 Freiburg, Germany
| | - Yi Thomann
- Freiburg
Materials Research Center (FMF) and Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Strasse 31, D-79104 Freiburg, Germany
| | - Markus Enders
- Institute
for Inorganic Chemistry, Ruprecht-Karls-University Heidelberg, Im Neuenheimer
Feld 270, D-69120 Heidelberg, Germany
| | - Rolf Mülhaupt
- Freiburg
Materials Research Center (FMF) and Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Strasse 31, D-79104 Freiburg, Germany
| |
Collapse
|
22
|
Effects of partial miscibility on the structure and properties of novel high performance blends composed of poly(p-phenylene sulfide) and poly(phenylsulfone). Polym J 2014. [DOI: 10.1038/pj.2014.21] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
23
|
Sun X, Shen G, Shen H, Xie B, Yang W, Yang M. Co-crystallization of Blends of High-density Polyethylene with Linear Low-density Polyethylene: An Investigation with Successive Self-nucleation and Annealing (SSA) Technique. J MACROMOL SCI B 2013. [DOI: 10.1080/00222348.2013.768504] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Xin Sun
- a College of Polymer Science and Engineering , Sichuan University , Chengdu Sichuan , China
| | - Guanghao Shen
- a College of Polymer Science and Engineering , Sichuan University , Chengdu Sichuan , China
| | - Hongwang Shen
- a College of Polymer Science and Engineering , Sichuan University , Chengdu Sichuan , China
| | - Banghu Xie
- a College of Polymer Science and Engineering , Sichuan University , Chengdu Sichuan , China
| | - Wei Yang
- a College of Polymer Science and Engineering , Sichuan University , Chengdu Sichuan , China
| | - Mingbo Yang
- a College of Polymer Science and Engineering , Sichuan University , Chengdu Sichuan , China
| |
Collapse
|
24
|
Shen HW, Xie BH, Yang W, Yang MB. Thermal and rheological properties of polyethylene blends with bimodal molecular weight distribution. J Appl Polym Sci 2013. [DOI: 10.1002/app.38850] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
25
|
Shen G, Shen H, Xie B, Yang W, Yang M. Crystallization and fracture behaviors of high-density polyethylene/linear low-density polyethylene blends: The influence of short-chain branching. J Appl Polym Sci 2013. [DOI: 10.1002/app.38937] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
26
|
Chen Y, Zou H, Liang M, Liu P. Study on the Dynamic Rheological Behavior of Four Different Bimodal Polyethylenes. J MACROMOL SCI B 2012. [DOI: 10.1080/00222348.2012.746554] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Yang Chen
- a The State Key Laboratory of Polymer Materials Engineering , Polymer Research Institute of Sichuan University , Chengdu , China
| | - Huawei Zou
- a The State Key Laboratory of Polymer Materials Engineering , Polymer Research Institute of Sichuan University , Chengdu , China
| | - Mei Liang
- a The State Key Laboratory of Polymer Materials Engineering , Polymer Research Institute of Sichuan University , Chengdu , China
| | - Pengbo Liu
- a The State Key Laboratory of Polymer Materials Engineering , Polymer Research Institute of Sichuan University , Chengdu , China
| |
Collapse
|
27
|
Ruff M, Paulik C. Controlling Polyolefin Properties by In-Reactor Blending, 1-Polymerization Process, Precise Kinetics, and Molecular Properties of UHMW-PE Polymers. MACROMOL REACT ENG 2012. [DOI: 10.1002/mren.201200019] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
28
|
Hou YJ, Xie BH, Yang W, Yang MB. Micro-Structure and Fracture Behavior of High-Melt-Strength PPs Prepared by Reactive Extrusion. J MACROMOL SCI B 2011. [DOI: 10.1080/00222348.2011.574061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Yu-Jia Hou
- a College of Polymer Science and Engineering , Sichuan University , Chengdu, Sichuan, China
| | - Bang-Hu Xie
- a College of Polymer Science and Engineering , Sichuan University , Chengdu, Sichuan, China
| | - Wei Yang
- a College of Polymer Science and Engineering , Sichuan University , Chengdu, Sichuan, China
| | - Ming-Bo Yang
- a College of Polymer Science and Engineering , Sichuan University , Chengdu, Sichuan, China
| |
Collapse
|
29
|
Narkchamnan K, Anantawaraskul S, Soares JB. Bimodality Criterion for the Chemical Composition Distribution of Ethylene/1-Olefin Copolymers: Theoretical Development and Experimental Validation. MACROMOL REACT ENG 2011. [DOI: 10.1002/mren.201100002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
30
|
Shen HW, Luan T, Xie BH, Yang W, Yang MB. Rheological behaviors and molecular weight distribution characteristics of bimodal high-density polyethylene. J Appl Polym Sci 2011. [DOI: 10.1002/app.33698] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
31
|
Sun X, Shen H, Xie B, Yang W, Yang M. Fracture behavior of bimodal polyethylene: Effect of molecular weight distribution characteristics. POLYMER 2011. [DOI: 10.1016/j.polymer.2010.12.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
32
|
Long YY, Liu SR, Cui L, Li YS. Influence of branching on the thermal and crystallization behavior of bimodal polyethylenes synthesized with binary late-transition-metal catalyst combinations. J Appl Polym Sci 2010. [DOI: 10.1002/app.31409] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
33
|
Gao B, Wu YC, Zhang ZG, Hua JJ, Yao KD, Hou X. Poly(acrylamide‐co‐acrylic acid)/Poly(vinyl pyrrolidone) Polymer Blends Prepared by Dispersion Polymerization. J MACROMOL SCI B 2008. [DOI: 10.1080/00222340801955495] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- B. Gao
- a Department of Polymer Science and Engineering , School of Material Science and Engineering, Tianjin University , Tianjin, P. R. China
| | - Y. C. Wu
- a Department of Polymer Science and Engineering , School of Material Science and Engineering, Tianjin University , Tianjin, P. R. China
| | - Z. G. Zhang
- a Department of Polymer Science and Engineering , School of Material Science and Engineering, Tianjin University , Tianjin, P. R. China
| | - J. J. Hua
- a Department of Polymer Science and Engineering , School of Material Science and Engineering, Tianjin University , Tianjin, P. R. China
| | - K. D. Yao
- a Department of Polymer Science and Engineering , School of Material Science and Engineering, Tianjin University , Tianjin, P. R. China
| | - X. Hou
- a Department of Polymer Science and Engineering , School of Material Science and Engineering, Tianjin University , Tianjin, P. R. China
| |
Collapse
|
34
|
Pan L, Zhang KY, Li YG, Bo SQ, Li YS. Thermal and crystallization behaviors of polyethylene blends synthesized by binary late transition metal catalysts combinations. J Appl Polym Sci 2007. [DOI: 10.1002/app.25960] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
35
|
Abstract
Since its inception just over a half century ago, the field of biomaterials has seen a consistent growth with a steady introduction of new ideas and productive branches. This review describes where we have been, the state of the art today, and where we might be in 10 or 20 years. Herein, we highlight some of the latest advancements in biomaterials that aim to control biological responses and ultimately heal. This new generation of biomaterials includes surface modification of materials to overcome nonspecific protein adsorption in vivo, precision immobilization of signaling groups on surfaces, development of synthetic materials with controlled properties for drug and cell carriers, biologically inspired materials that mimic natural processes, and design of sophisticated three-dimensional (3-D) architectures to produce well-defined patterns for diagnostics, e.g., biological microelectromechanical systems (bioMEMs), and tissue engineering.
Collapse
Affiliation(s)
- Buddy D Ratner
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, USA.
| | | |
Collapse
|