1
|
Jin X, Zhang C, Lin J, Cai C, Chen J, Gao L. Fusion Growth of Two-Dimensional Disklike Micelles via Liquid-Crystallization-Driven Self-Assembly. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00581] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiao Jin
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chengyan Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jianding Chen
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Liang Gao
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| |
Collapse
|
2
|
Athiyarath V, Madhusudhanan MC, Kunnikuruvan S, Sureshan KM. Secondary Structure Tuning of a Pseudoprotein Between β‐Meander and α‐Helical Forms in the Solid‐State. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Vignesh Athiyarath
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram Kerala 695551 India
| | - Mithun C. Madhusudhanan
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram Kerala 695551 India
| | - Sooraj Kunnikuruvan
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram Kerala 695551 India
| | - Kana M. Sureshan
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram Kerala 695551 India
| |
Collapse
|
3
|
Athiyarath V, Madhusudhanan MC, Kunnikuruvan S, Sureshan KM. Secondary Structure Tuning of a Pseudoprotein Between β-Meander and α-Helical Forms in the Solid-State. Angew Chem Int Ed Engl 2021; 61:e202113129. [PMID: 34699112 DOI: 10.1002/anie.202113129] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Indexed: 12/23/2022]
Abstract
Tuning the secondary structure of a protein or polymer in the solid-state is challenging. Here we report the topochemical synthesis of a pseudoprotein and its secondary structure tuning in the solid-state. We designed the dipeptide monomer N3 -Leu-Ala-NH-CH2 -C≡CH (1) for topochemical azide-alkyne cycloaddition (TAAC) polymerization. Dipeptide 1 adopts an anti-parallel β-sheet-like stacked arrangement in its crystals. Upon heating, the dipeptide undergoes quantitative TAAC polymerization in a crystal-to-crystal fashion yielding large polymers. The reaction occurs between the adjacent monomers in the H-bonded anti-parallel stack, yielding pseudoprotein having a β-meander structure. When dissolved in methanol, this pseudoprotein changes its secondary structure from β-meander to α-helical form and it retains the new secondary structure upon desolvation. This work demonstrates a novel paradigm for tuning the secondary structure of a polymer in the solid-state.
Collapse
Affiliation(s)
- Vignesh Athiyarath
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala, 695551, India
| | - Mithun C Madhusudhanan
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala, 695551, India
| | - Sooraj Kunnikuruvan
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala, 695551, India
| | - Kana M Sureshan
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala, 695551, India
| |
Collapse
|
4
|
Xu W, Xu Z, Cai C, Lin J, Gao L, Qi H, Lin S. Spiral- and meridian-patterned spheres self-assembled from block copolymer/homopolymer binary systems. NANOSCALE 2021; 13:14016-14022. [PMID: 34477682 DOI: 10.1039/d1nr02674g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Spiral nanostructures, mainly in the 2D form, have been observed in polymer self-assembly, while well-defined 3D spirals are rarely reported. Here we report that a binary system containing polypeptide-based block copolymers and homopolymers can self-assemble into well-defined spiral spheres (3D spirals), in which the homopolymers form the core and the copolymers form the spirals. Upon increasing the preparation temperature, meridian spheres were obtained. Mixing polypeptide block copolymers with opposite backbone chirality also leads to the formation of meridian spheres. In the meridian patterns, a tighter packing manner of the phenyl groups appended to the polypeptide blocks was observed, which is responsible for the spiral-to-meridian transitions. This work enriches the research of spiral assemblies and provides a facile route to switch chiral/achiral nanostructures by regulating the packing manner of the pendant groups.
Collapse
Affiliation(s)
- Wenheng Xu
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | | | | | | | | | | | | |
Collapse
|
5
|
Zhou F, Gu KH, Zhang ZY, Zhang MY, Zhou S, Shen Z, Fan XH. Exploiting Host-Guest Interactions for the Synthesis of a Rod-Rod Block Copolymer with Crystalline and Liquid-Crystalline Blocks. Angew Chem Int Ed Engl 2016; 55:15007-15011. [PMID: 27783471 DOI: 10.1002/anie.201608043] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 09/28/2016] [Indexed: 11/11/2022]
Abstract
By making use of the host-guest interactions between the host molecule tris-o-phenylenedioxycyclotriphosphazene (TPP) and the rod-coil block copolymer (BCP) poly(ethylene oxide)-block-poly(octyl 4'-octyloxy-2-vinylbiphenyl-4-carboxylate) (PEO-b-PVBP), the supramolecular rod-rod block copolymer P(EO@TPP)-b-PVBP was constructed. It consists of a crystalline segment P(EO@TPP) with a hexagonal crystalline structure and a columnar nematic liquid-crystalline segment (PVBP). As the PVBP segments arrange themselves as columnar nematic phases, the crystalline structure of the inclusion complex P(EO@TPP), which has a smaller diameter, is destroyed. The self-assembled nanostructure is thus clearly affected by the interplay between the two blocks. On the basis of wide- and small-angle X-ray scattering analysis, we conclude that the supramolecular rod-rod BCP can self-assemble into a cylinder-in-cylinder double hexagonal structure.
Collapse
Affiliation(s)
- Feng Zhou
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Ke-Hua Gu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Zhen-Yu Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Meng-Yao Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Sheng Zhou
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Zhihao Shen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Xing-He Fan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| |
Collapse
|
6
|
Zhou F, Gu KH, Zhang ZY, Zhang MY, Zhou S, Shen Z, Fan XH. Exploiting Host-Guest Interactions for the Synthesis of a Rod-Rod Block Copolymer with Crystalline and Liquid-Crystalline Blocks. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Feng Zhou
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education; Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Ke-Hua Gu
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education; Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Zhen-Yu Zhang
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education; Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Meng-Yao Zhang
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education; Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Sheng Zhou
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education; Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Zhihao Shen
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education; Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| | - Xing-He Fan
- Beijing National Laboratory for Molecular Sciences; Key Laboratory of Polymer Chemistry and Physics of Ministry of Education; Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 China
| |
Collapse
|
7
|
Li Y, Jiang T, Wang L, Lin S, Lin J. Self-assembly of rod-coil-rod triblock copolymers: A route toward hierarchical liquid crystalline structures. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.09.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
8
|
Rudolph T, Schacher FH. Selective crosslinking or addressing of individual domains within block copolymer nanostructures. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.03.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
9
|
Gkikas M, Haataja JS, Ruokolainen J, Iatrou H, Houbenov N. Complexation-Driven Mutarotation in Poly(L-proline) Block Copolypeptides. Biomacromolecules 2015; 16:3686-93. [PMID: 26461162 DOI: 10.1021/acs.biomac.5b01198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Novel poly(L-lysine)-block-poly(L-proline) (PLL-b-PLP)-based materials with all PLP helical conformers, i.e., PLP II and the rare PLP I are here reported. Electrostatic supramolecular complexation of the adjacent cationic PLL with anionic molecules bearing DNA analogue H-bonding functionalities, such as deoxyguanosine monophosphate (dGMP), preserves the extended PLP II helix, and the complexed molecule is locked and held in position by orthogonal shape-persistent hydrogen-bonded dGMP ribbons and their extended π-stacking. The branched anionic surfactant dodecylbenzenesulfonic acid (DBSA) on the other hand, introduces periodicity frustration and interlayer plasticization, leading to a reversed mutarotation to the more compact PLP I helix by complexation, without external stimuli, and is here reported for the first time. We foresee that our findings can be used as a platform for novel molecularly adaptive functional materials, and could possibly give insight in many proline-related transmembrane biological functions.
Collapse
Affiliation(s)
- Manos Gkikas
- Chemistry Department, University of Athens , Panepistimiopolis, Zografou, 15771, Athens, Greece.,Molecular Materials, Department of Applied Physics, Aalto University School of Science and Technology (previously Helsinki University of Technology), FIN-00076 Aalto, Espoo, Finland
| | - Johannes S Haataja
- Molecular Materials, Department of Applied Physics, Aalto University School of Science and Technology (previously Helsinki University of Technology), FIN-00076 Aalto, Espoo, Finland.,Nanomicroscopy Center, Aalto University School of Science and Technology , FIN-00076 Aalto, Espoo, Finland
| | - Janne Ruokolainen
- Molecular Materials, Department of Applied Physics, Aalto University School of Science and Technology (previously Helsinki University of Technology), FIN-00076 Aalto, Espoo, Finland.,Nanomicroscopy Center, Aalto University School of Science and Technology , FIN-00076 Aalto, Espoo, Finland
| | - Hermis Iatrou
- Chemistry Department, University of Athens , Panepistimiopolis, Zografou, 15771, Athens, Greece
| | - Nikolay Houbenov
- Molecular Materials, Department of Applied Physics, Aalto University School of Science and Technology (previously Helsinki University of Technology), FIN-00076 Aalto, Espoo, Finland.,Nanomicroscopy Center, Aalto University School of Science and Technology , FIN-00076 Aalto, Espoo, Finland
| |
Collapse
|
10
|
Liang J, Hu X, Wang J, Ren X, Yang X, Zhu J. Synthesis of acid–base bifunctional CaO/ITQ-2 zeolite catalyst for phosphorylation of dodecanol. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.06.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
|
11
|
Shi SY, He YG, Chen WW, Liu N, Zhu YY, Ding YS, Yin J, Wu ZQ. Polypeptide-b-Poly(Phenyl Isocyanide) Hybrid Rod-Rod Copolymers: One-Pot Synthesis, Self-Assembly, and Cell Imaging. Macromol Rapid Commun 2015; 36:1511-20. [PMID: 26096462 DOI: 10.1002/marc.201500185] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 05/13/2015] [Indexed: 01/26/2023]
Abstract
Hybrid rod-rod diblock copolymers, poly(γ-benzyl L-glutamate)-poly(4-cyano-benzoic acid 2-isopropyl-5-methyl-cyclohexyl ester) (PBLG-PPI), with determined chirality are facilely synthesized through sequential copolymerization of γ-benzyl-L-glutamate N-carboxyanhydride (BLG-NCA) and phenyl isocyanide monomers bearing chiral menthyl pendants using a Ni(cod)(bpy) complex as the catalyst in one-pot. Circular dichroism and absorption spectra reveal that each block of the block copolymers possesses a stable helical conformation with controlled helicity in solution due to the induction of chiral pendants. The two diastereomeric polymers self-assemble into helical nanofibrils with opposite handedness due to the different chiral induction of the L- and D-menthyl pendants, confirmed by transmission electron microscopy (TEM). Deprotection of the benzyl groups of the PBLG segment affords biocompatible amphiphilic diblock copolymers, poly(L-glutamic acid)-poly(4-cyano-benzoic acid 2-isopropyl-5-methyl-cyclohexyl ester) (PLGA-PPI), that can self-assemble into well-defined micelles by cosolvent induced aggregation. Very interestingly, a chiral rhodamine chromophores RhB(D) can be selectively encapsulated into the chiral polymeric micelles, which is efficiently internalized into living cells when directly monitored with a confocal microscope. This contribution will be useful for developing novel rod-rod biocompatible hybrid block copolymers with a controlled helicity, and may also provide unique chiral materials for potential bio-medical applications.
Collapse
Affiliation(s)
- Sheng-Yu Shi
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei, 230009, China
| | - Ya-Guang He
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei, 230009, China
| | - Wei-Wei Chen
- Anhui Provincial Children's Hospital, Hefei, 230000, China
| | - Na Liu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei, 230009, China
| | - Yuan-Yuan Zhu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei, 230009, China
| | - Yun-Sheng Ding
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei, 230009, China
| | - Jun Yin
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei, 230009, China
| | - Zong-Quan Wu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei, 230009, China
| |
Collapse
|
12
|
Gkikas M, Haataja JS, Seitsonen J, Ruokolainen J, Ikkala O, Iatrou H, Houbenov N. Extended Self-Assembled Long Periodicity and Zig-Zag Domains from Helix–Helix Diblock Copolymer Poly(γ-benzyl-l-glutamate)-block-poly(O-benzyl-l-hydroxyproline). Biomacromolecules 2014; 15:3923-30. [DOI: 10.1021/bm5009734] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Manos Gkikas
- University of Athens, Department of Chemistry, Panepistimiopolis, Zografou, 15771 Athens, Greece
- Molecular
Materials, Department of Applied Physics, Aalto University School of Science and Technology (previously Helsinki University of Technology), P.O. Box 15100, FIN-00076 Aalto, Espoo, Finland
| | - Johannes S. Haataja
- Molecular
Materials, Department of Applied Physics, Aalto University School of Science and Technology (previously Helsinki University of Technology), P.O. Box 15100, FIN-00076 Aalto, Espoo, Finland
| | - Jani Seitsonen
- Molecular
Materials, Department of Applied Physics, Aalto University School of Science and Technology (previously Helsinki University of Technology), P.O. Box 15100, FIN-00076 Aalto, Espoo, Finland
- Nanomicroscopy
Center, Aalto University School of Science and Technology, P.O. Box 11000, FIN-00076 Aalto, Espoo, Finland
| | - Janne Ruokolainen
- Molecular
Materials, Department of Applied Physics, Aalto University School of Science and Technology (previously Helsinki University of Technology), P.O. Box 15100, FIN-00076 Aalto, Espoo, Finland
- Nanomicroscopy
Center, Aalto University School of Science and Technology, P.O. Box 11000, FIN-00076 Aalto, Espoo, Finland
| | - Olli Ikkala
- Molecular
Materials, Department of Applied Physics, Aalto University School of Science and Technology (previously Helsinki University of Technology), P.O. Box 15100, FIN-00076 Aalto, Espoo, Finland
| | - Hermis Iatrou
- University of Athens, Department of Chemistry, Panepistimiopolis, Zografou, 15771 Athens, Greece
| | - Nikolay Houbenov
- Molecular
Materials, Department of Applied Physics, Aalto University School of Science and Technology (previously Helsinki University of Technology), P.O. Box 15100, FIN-00076 Aalto, Espoo, Finland
| |
Collapse
|
13
|
Tu Y, Ji Z, Yang X, Wan X, Zhou QF. Supramolecular Chemistry in the Formation of Self-Assembled Nanostructures from a High-Molecular-Weight Rod-Coil Block Copolymer. Macromol Rapid Commun 2014; 35:1795-1800. [PMID: 25204263 DOI: 10.1002/marc.201400381] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 08/09/2013] [Indexed: 02/28/2024]
Abstract
The self-assembled nanostructures of a high-molecular-weight rod-coil block copolymer, poly(styrene-block-(2,5-bis[4-methoxyphenyl]oxycarbonyl)styrene) (PS-b-PMPCS), in p-xylene are studied. The cylindrical micelles, long segmental cylindrical micelle associates, spherical micelles, and spherical micelle associates are observed with increased copolymer concentration. The high molecular weight of PS leads to the entanglement between PS chains from different micelles, which is the force for supramolecular interactions. Short cylindrical micelles are connected end-to-end via this supramolecular chemistry to form long segmental cylindrical micelle associates, analogue to the condensation polymerization process, with direction and saturation. On the other hand, spherical micelles assemble via supramolecular chemistry to form spherical micelle associates, yet without any direction due to their isotropic properties.
Collapse
Affiliation(s)
- Yingfeng Tu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | | | | | | | | |
Collapse
|
14
|
Romulus J, Henssler JT, Weck M. Postpolymerization Modification of Block Copolymers. Macromolecules 2014. [DOI: 10.1021/ma5009918] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Joy Romulus
- Department
of Chemistry and
Molecular Design Institute, New York University, New York, New York 10003, United States
| | - John T. Henssler
- Department
of Chemistry and
Molecular Design Institute, New York University, New York, New York 10003, United States
| | - Marcus Weck
- Department
of Chemistry and
Molecular Design Institute, New York University, New York, New York 10003, United States
| |
Collapse
|
15
|
Zhu X, Wang L, Lin J. Self-Assembly of Rod–Coil Multiblock Copolymers: A Strategy for Creating Hierarchical Smectic Structures. J Phys Chem B 2013; 117:5748-56. [DOI: 10.1021/jp400882h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xiaomeng Zhu
- Shanghai Key Laboratory of Advanced Polymeric Materials,
Key Laboratory for Ultrafine Materials of Ministry of Education, School
of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials,
Key Laboratory for Ultrafine Materials of Ministry of Education, School
of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials,
Key Laboratory for Ultrafine Materials of Ministry of Education, School
of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| |
Collapse
|
16
|
Ahmed R, Patra SK, Hamley IW, Manners I, Faul CFJ. Tetragonal and Helical Morphologies from Polyferrocenylsilane Block Polyelectrolytes via Ionic Self-Assembly. J Am Chem Soc 2013; 135:2455-8. [DOI: 10.1021/ja312318d] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rumman Ahmed
- School of
Chemistry, University of Bristol, Cantock’s
Close, Bristol
BS8 1TS, U.K
| | - Sanjib K. Patra
- School of
Chemistry, University of Bristol, Cantock’s
Close, Bristol
BS8 1TS, U.K
| | - Ian W. Hamley
- Department
of Chemistry, University of Reading, Whiteknights,
P.O. Box 217,
Reading, Berkshire RG6 6AH, U.K
| | - Ian Manners
- School of
Chemistry, University of Bristol, Cantock’s
Close, Bristol
BS8 1TS, U.K
| | - Charl F. J. Faul
- School of
Chemistry, University of Bristol, Cantock’s
Close, Bristol
BS8 1TS, U.K
| |
Collapse
|