1
|
Subramanian V, Wu K, Feng X, Tsai E, Li R, Freychet G, Zhernenkov M, Sen A, Mcintosh A, Thomas EL. Cryo-FIB and Synchrotron SAXS/WAXS Studies of Confined Crystallization of PDMS in Tubular Network Block Copolymer Morphologies. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2023; 29:523-525. [PMID: 37613248 DOI: 10.1093/micmic/ozad067.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- Vivek Subramanian
- Materials Science and Engineering, Texas A&M University, College Station, TX, USA
| | - Ken Wu
- Materials and Structural Analysis Division, Thermo Fisher Scientific, Hillsboro, OR, USA
| | - Xueyan Feng
- Department of Macromolecular Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, China
| | - Esther Tsai
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, USA
| | - Ruipeng Li
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, USA
| | - Guillaume Freychet
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, USA
| | - Mikhail Zhernenkov
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, USA
| | - Anindito Sen
- Microscopy and Imaging Centre (MIC), Texas A&M University, College Station, TX, USA
| | - Avery Mcintosh
- Microscopy and Imaging Centre (MIC), Texas A&M University, College Station, TX, USA
| | - Edwin L Thomas
- Materials Science and Engineering, Texas A&M University, College Station, TX, USA
| |
Collapse
|
2
|
KAYSER F, Fleury G, thongkham S, Navarro C, Martin-Vaca B, Bourissou D. Reducing the crystallinity of PCL chains by copolymerization with substituted δ/ε-lactones and its impact on the phase separation of PCL-based block copolymers. Polym Chem 2022. [DOI: 10.1039/d2py00101b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Various substituted δ/ε-lactones have been copolymerized with ε-caprolactone (ε-CL) with the aim to inhibit the crystallization of polycaprolactone (PCL). Among the studied co-monomers, the best results were obtained with the...
Collapse
|
3
|
Surface Structures, Particles, and Fibers of Shape-Memory Polymers at Micro-/Nanoscale. ADVANCES IN POLYMER TECHNOLOGY 2020. [DOI: 10.1155/2020/7639724] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Shape-memory polymers (SMPs) are one kind of smart polymers and can change their shapes in a predefined manner under stimuli. Shape-memory effect (SME) is not a unique ability for specific polymeric materials but results from the combination of a tailored shape-memory creation procedure (SMCP) and suitable molecular architecture that consists of netpoints and switching domains. In the last decade, the trend toward the exploration of SMPs to recover structures at micro-/nanoscale occurs with the development of SMPs. Here, the progress of the exploration in micro-/nanoscale structures, particles, and fibers of SMPs is reviewed. The preparation method, SMCP, characterization of SME, and applications of surface structures, free-standing particles, and fibers of SMPs at micro-/nanoscale are summarized.
Collapse
|
4
|
Agbolaghi S, Abbaspoor S, Abbasi F. A comprehensive review on polymer single crystals—From fundamental concepts to applications. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2017.11.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
5
|
Alharbe LG, Register RA, Hobbs JK. Orientation Control and Crystallization in a Soft Confined Phase Separated Block Copolymer. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02361] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lamiaa G. Alharbe
- Department
of Physics and Astronomy, University of Sheffield, Hicks Building, Sheffield S3 7RH, United Kingdom
| | - Richard A. Register
- Department
of Chemical and Biological Engineering and Princeton Institute for
the Science and Technology of Materials, Princeton University, Princeton, New Jersey 08544, United States
| | - Jamie K. Hobbs
- Department
of Physics and Astronomy, University of Sheffield, Hicks Building, Sheffield S3 7RH, United Kingdom
| |
Collapse
|
6
|
Block copolymer thin films: Characterizing nanostructure evolution with in situ X-ray and neutron scattering. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.06.069] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
7
|
Majewski PW, Yager KG. Rapid ordering of block copolymer thin films. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2016; 28:403002. [PMID: 27537062 DOI: 10.1088/0953-8984/28/40/403002] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Block-copolymers self-assemble into diverse morphologies, where nanoscale order can be finely tuned via block architecture and processing conditions. However, the ultimate usage of these materials in real-world applications may be hampered by the extremely long thermal annealing times-hours or days-required to achieve good order. Here, we provide an overview of the fundamentals of block-copolymer self-assembly kinetics, and review the techniques that have been demonstrated to influence, and enhance, these ordering kinetics. We discuss the inherent tradeoffs between oven annealing, solvent annealing, microwave annealing, zone annealing, and other directed self-assembly methods; including an assessment of spatial and temporal characteristics. We also review both real-space and reciprocal-space analysis techniques for quantifying order in these systems.
Collapse
Affiliation(s)
- Pawel W Majewski
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, USA. Department of Chemistry, University of Warsaw, Warsaw, Poland
| | | |
Collapse
|
8
|
|
9
|
Crawford KE, Sita LR. Stereoengineering of poly(1,3-methylenecyclohexane) via two-state living coordination polymerization of 1,6-heptadiene. J Am Chem Soc 2013; 135:8778-81. [PMID: 23691930 DOI: 10.1021/ja402262x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
External control over the rate of dynamic methyl group exchange between configurationally stable active species and configurationally unstable dormant species with respect to chain-growth propagation within a highly stereoselective and regiospecific living coordination polymerization of 1,6-heptadiene has been used to generate a spectrum of different physical forms of poly(1,3-methylenecyclohexane) (PMCH) in which the stereochemical microstructure has been systematically varied between two limiting forms. The application of this strategy to manipulate the bulk properties of PMCH and the solid-state microphase behavior of well-defined PMCH-b-poly(1-hexene) block copolymers is further demonstrated.
Collapse
Affiliation(s)
- Kaitlyn E Crawford
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA
| | | |
Collapse
|
10
|
Zhang P, Wang Z, Huang H, He T. Direct Observation of the Relief Structure Formation in the Nearly Symmetric Poly(styrene)-block-poly(ε-caprolactone) Diblock Copolymer Thin Film. Macromolecules 2012. [DOI: 10.1021/ma301531a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Peng Zhang
- State Key Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Graduate
School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun 130022, People’s Republic
of China
| | - Zongbao Wang
- Ningbo Key Laboratory
of Polymer
Materials, Ningbo Institute of Material Technology and Engineering, Ningbo 315201, People’s Republic
of China
| | - Haiying Huang
- State Key Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Graduate
School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun 130022, People’s Republic
of China
| | - Tianbai He
- State Key Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Graduate
School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun 130022, People’s Republic
of China
| |
Collapse
|
11
|
|
12
|
Zhang P, Huang H, Yan D, He T. In situ study of the breakout crystallization in the poly(butadiene)-block-poly(ε-caprolactone) thin film. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:6419-6427. [PMID: 22424394 DOI: 10.1021/la300439h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Despite its wide occurrence in soft confined block co-polymers, breakout crystallization remains poorly understood and is difficult to control. In this work, thin films of cylinder-forming poly(butadiene)-block-poly(ε-caprolactone) (PB-b-PCL) diblock co-polymers, with PCL being the minority block, have been chosen as the study subject. We demonstrate a new route to study the breakout crystallization by obtaining the microphase separation structure within terraced lamellae first and then in situ tracking down the lamellar coalescence, resulting from the development of the crystal growth front. We find that the crystal growth front has sucked materials from the surrounding amorphous lamellae, which lead to the decrease of the lamellar zones and coalescence of the microphase separation structure. Dividing the breakout crystallization into parallel breakout and vertical breakout, we illustrate that it is the crystallization-driven molecular diffusion that make the molecules overcome the topography constraint and grow into large-scale spherulite. Moreover, the results show that the polymer microphase separation structure has a significant influence on the crystal nucleation and greatly retarded the crystal growth rate. With a well-designed microphase separation structure within terraces and an easily tunable atomic force microscopy in situ imaging technique, an intensive study of the breakout crystallization and concomitant microdomain coalescence has been offered.
Collapse
Affiliation(s)
- Peng Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Graduate University of Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | | | | | | |
Collapse
|
13
|
Cong Y, Liu H, Wang D, Zhao B, Yan T, Li L, Chen W, Zhong Z, Lin MC, Chen HL, Yang C. Stretch-Induced Crystallization through Single Molecular Force Generating Mechanism. Macromolecules 2011. [DOI: 10.1021/ma201249y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuanhua Cong
- National Synchrotron Radiation Lab and College of Nuclear Science and Technology, University of Science and Technology of China, Hefei, China
| | - Hao Liu
- CAS Key Lab for Softmatter Chemistry, University of Science and Technology of China, Hefei, China
| | - Daoliang Wang
- National Synchrotron Radiation Lab and College of Nuclear Science and Technology, University of Science and Technology of China, Hefei, China
| | - Baijin Zhao
- National Synchrotron Radiation Lab and College of Nuclear Science and Technology, University of Science and Technology of China, Hefei, China
| | - Tingzi Yan
- National Synchrotron Radiation Lab and College of Nuclear Science and Technology, University of Science and Technology of China, Hefei, China
| | - Liangbin Li
- National Synchrotron Radiation Lab and College of Nuclear Science and Technology, University of Science and Technology of China, Hefei, China
- CAS Key Lab for Softmatter Chemistry, University of Science and Technology of China, Hefei, China
| | | | | | | | | | | |
Collapse
|
14
|
Formation mechanism, chain folding, and growth behavior of the intriguing fiber-like crystal of poly (ethylene oxide-b-ε-caprolactone) block copolymer in ultrathin films. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.02.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
15
|
Papadakis CM, Darko C, Di Z, Troll K, Metwalli E, Timmann A, Reiter G, Förster S. Surface-induced breakout crystallization in cylinder-forming P(I-b-EO) diblock copolymer thin films. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2011; 34:7. [PMID: 21267706 DOI: 10.1140/epje/i2011-11007-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Accepted: 12/21/2010] [Indexed: 05/30/2023]
Abstract
We have found very slow crystallization in thin films of cylinder-forming poly(isoprene-b-ethyleneoxide) (P(I-b -EO)) diblock copolymers with PEO being the minority block. The film was crystallized at room temperature after melting at 62 °C. Imaging methods were combined with X-ray reflectometry and grazing-incidence small-angle X-ray scattering and diffraction. Initially, hexagonally packed, amorphous PEO cylinders lie in the film plane. After 148 days, crystallized, finger-like terraces were observed over the entire film surface. The terrace height is 20% higher than the repeat distance in the as-prepared film. Thus, at the film surface, the cylinders have been destroyed by crystalline lamellae lying in the film plane. The PEO chain stems are perpendicular to the substrate surface and are once-folded and fully interdigitated. The substrate-near layers still consist of the hexagonally packed, amorphous PEO cylinders within the PI matrix.
Collapse
Affiliation(s)
- C M Papadakis
- Technische Universität München, Physikdepartment, Fachgebiet Physik weicher Materie/Lehrstuhl für funktionelle Materialien, James-Franck-Str. 1, 85747 Garching, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Yang P, Yu X, Han Y. Transition between crystallization and microphase separation in PS-b-PEO thin film Influenced by solvent vapor selectivity. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.08.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
17
|
Xu J, Bellas V, Jungnickel B, Stühn B, Rehahn M. A Novel Crystallization Scheme in Poly[styrene-block
-(ferrocenyl dimethylsilane)] Diblock Copolymers. MACROMOL CHEM PHYS 2010. [DOI: 10.1002/macp.201000220] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
18
|
Chung TM, Wang TC, Ho RM, Sun YS, Ko BT. Polymeric Crystallization under Nanoscale 2D Spatial Confinement. Macromolecules 2010. [DOI: 10.1021/ma100998k] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tsai-Ming Chung
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Tzu-Chung Wang
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Rong-Ming Ho
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Ya-Sen Sun
- Department of Chemical and Materials Engineering, National Central University, Taoyuan 32001, Taiwan
| | - Bao-Tsan Ko
- Department of Chemistry, Chung Yuan Christian University, Chungli 32023, Taiwan
| |
Collapse
|
19
|
|
20
|
|
21
|
Yang P, Han Y. Crystal growth transition from flat-on to edge-on induced by solvent evaporation in ultrathin films of polystyrene-b-poly(ethylene oxide). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:9960-9968. [PMID: 19705892 DOI: 10.1021/la901108p] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The transition of lamellar crystal orientation from flat-on to edge-on in ultrathin films of polystyrene-b-poly(ethylene oxide) (PS-b-PEO) via solvent vapor (toluene) treatment was investigated. When the as-prepared film was treated in saturated solvent vapor, breakout crystals could form quickly, and then they transformed from square single crystals (flat-on lamellae) to dendrites and finally to nanowire crystals (edge-on lamellae). Initially, heterogeneous nucleation at the polymer/substrate interface dominated the structure evolution, leading to flat-on lamellar crystals orientation. And the transition from faceted habits to dendrites indicated a transition of underlying mechanism from nucleation-controlled to diffusion-limited growth. As the solvent molecules gradually diffused into the polymer/substrate interface, it will subsequently weaken the polymer-substrate interaction. In this case, lower free energy lamellae of an edge-on orientation could be obtained by the gain of free volume of the soluble PS block.
Collapse
Affiliation(s)
- Ping Yang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate University of the Chinese Academy of Sciences, Changchun 130022, P. R. China
| | | |
Collapse
|
22
|
|
23
|
Cai T, Qian Y, Ma Y, Ren Y, Hu W. Polymer Crystallization Confined in Hard Spherical Microdomains of Diblock Copolymers. Macromolecules 2009. [DOI: 10.1021/ma900069m] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tao Cai
- Department of Polymer Science and Engineering, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, 210093 Nanjing, China
| | - Yong Qian
- Department of Polymer Science and Engineering, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, 210093 Nanjing, China
| | - Yu Ma
- Department of Polymer Science and Engineering, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, 210093 Nanjing, China
| | - Yijin Ren
- Department of Polymer Science and Engineering, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, 210093 Nanjing, China
| | - Wenbing Hu
- Department of Polymer Science and Engineering, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, 210093 Nanjing, China
| |
Collapse
|
24
|
Yang P, Han Y. Polymer Crystallization Influenced by Initial Orientation of Cylindrical Diblock Copolymers in Thin Films. Macromol Rapid Commun 2008. [DOI: 10.1002/marc.200800285] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
25
|
Nojima S, Inokawa D, Kawamura T, Nitta KH. Dynamic Mechanical Study of Block Copolymer Crystallization Confined within Spherical Nanodomains. Polym J 2008. [DOI: 10.1295/polymj.pj2008139] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
26
|
Probing buried carbon nanotubes within polymer–nanotube composite matrices by atomic force microscopy. Eur Polym J 2007. [DOI: 10.1016/j.eurpolymj.2007.07.035] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
27
|
Mather BD, Baker MB, Beyer FL, Berg MAG, Green MD, Long TE. Supramolecular Triblock Copolymers Containing Complementary Nucleobase Molecular Recognition. Macromolecules 2007. [DOI: 10.1021/ma070865y] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Brian D. Mather
- Macromolecules and Interfaces Institute, Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0344, and Army Research Laboratory, Materials Division, Aberdeen Proving Ground, Aberdeen, Maryland 21005
| | - Margaux B. Baker
- Macromolecules and Interfaces Institute, Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0344, and Army Research Laboratory, Materials Division, Aberdeen Proving Ground, Aberdeen, Maryland 21005
| | - Frederick L. Beyer
- Macromolecules and Interfaces Institute, Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0344, and Army Research Laboratory, Materials Division, Aberdeen Proving Ground, Aberdeen, Maryland 21005
| | - Michael A. G. Berg
- Macromolecules and Interfaces Institute, Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0344, and Army Research Laboratory, Materials Division, Aberdeen Proving Ground, Aberdeen, Maryland 21005
| | - Matthew D. Green
- Macromolecules and Interfaces Institute, Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0344, and Army Research Laboratory, Materials Division, Aberdeen Proving Ground, Aberdeen, Maryland 21005
| | - Timothy E. Long
- Macromolecules and Interfaces Institute, Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0344, and Army Research Laboratory, Materials Division, Aberdeen Proving Ground, Aberdeen, Maryland 21005
| |
Collapse
|
28
|
Xiao Z, Akpalu YA. New insights into the characteristics of early stage crystallization of a polyethylene. POLYMER 2007. [DOI: 10.1016/j.polymer.2007.06.049] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
29
|
Hsu JY, Hsieh IF, Nandan B, Chiu FC, Chen JH, Jeng US, Chen HL. Crystallization Kinetics and Crystallization-Induced Morphological Formation in the Blends of Poly(ε-caprolactone)-block-polybutadiene and Polybutadiene Homopolymer. Macromolecules 2007. [DOI: 10.1021/ma070369+] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
30
|
Xu C, Wayland BB, Fryd M, Winey KI, Composto RJ. pH-Responsive Nanostructures Assembled from Amphiphilic Block Copolymers. Macromolecules 2006. [DOI: 10.1021/ma060881f] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chen Xu
- Department of Materials Science and Engineering and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6272, and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Bradford B. Wayland
- Department of Materials Science and Engineering and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6272, and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Michael Fryd
- Department of Materials Science and Engineering and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6272, and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Karen I. Winey
- Department of Materials Science and Engineering and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6272, and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Russell J. Composto
- Department of Materials Science and Engineering and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6272, and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| |
Collapse
|
31
|
Harth E, Croce TA. Carving Out Niches for Nanostructures: Implementation and Interplay of Building Blocks, Methods, and Tools. Aust J Chem 2006. [DOI: 10.1071/ch06245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The number and diversity of techniques to create well-defined polymeric architectures has set the foundation to reinvent macromolecular chemistry’s tenor. This development offers the chance to build refined structures with multifaceted, cross-disciplinary applications. We discuss a few advances in the design and development of selected nanoobjects with far-reaching potential. Herein, well-defined building blocks and introduced methods to establish three-dimensional architectures will be presented. Sequential attachment strategies and tools taken from biological chemistries achieve new levels of specificity.
Collapse
|