Polymer Science News

A hyperbranched amphiphilic acetal polymer for pH-sensitive drug delivery

RSC - Polym. Chem. latest articles - Wed, 12/06/2017 - 07:37

Polym. Chem., 2018, Advance Article
DOI: 10.1039/C7PY01739A, PaperHongliang Cao, Chao Chen, Debiao Xie, Xin Chen, Ping Wang, Yibing Wang, Huajie Song, Wenxin Wang
In this study, a novel hyperbranched amphiphilic block copolymer was synthesized using deactivation-enhanced atom transfer radical polymerization (DE-ATRP) for smart drug delivery.
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Chitosan hydrogelation with a phenothiazine based aldehyde: a synthetic approach toward highly luminescent biomaterials

RSC - Polym. Chem. latest articles - Wed, 12/06/2017 - 07:37

Polym. Chem., 2018, Advance Article
DOI: 10.1039/C7PY01678F, PaperAndrei Bejan, Daniela Ailincai, Bogdan C. Simionescu, Luminita Marin
Hydrogelation of chitosan with a photoactive aldehyde via covalent dynamic chemistry proved an original approach towards efficient luminescent biomaterials.
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Novel cyclodextrin-based pH-sensitive supramolecular host-guest assembly for staining acidic cellular organelles

RSC - Polym. Chem. latest articles - Wed, 12/06/2017 - 07:37

Polym. Chem., 2018, Advance Article
DOI: 10.1039/C7PY01668A, PaperGabriela Pricope, Elena Laura Ursu, Monica Sardaru, Corneliu Cojocaru, Lilia Clima, Narcisa Marangoci, Ramona Danac, Ionel I. Mangalagiu, Bogdan C. Simionescu, Mariana Pinteala, Alexandru Rotaru
A novel supramolecular approach for the preparation of new non-toxic systems for staining cellular organelles is described.
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A supramolecular peptide polymer from hydrogen-bond and coordination-driven self-assembly

RSC - Polym. Chem. latest articles - Tue, 12/05/2017 - 10:18

Polym. Chem., 2018, Advance Article
DOI: 10.1039/C7PY01901G, PaperXiaomin Zhu, Rongfeng Zou, Peng Sun, Qi Wang, Junchen Wu
A terpyridine- and guanine-functionalized peptide was developed that could form different morphologies by self-assembly or coordination with Fe2+ in dimethyl sulfoxide.
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A switch from anionic to H-bonding bifunctional catalyzed ring-opening polymerizations towards polyether-polyester diblock copolymers

RSC - Polym. Chem. latest articles - Tue, 12/05/2017 - 10:18
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01842H, CommunicationYaya Liu, Xin Wang, Zhenjiang Li, Fulan Wei, Hui Zhu, He Dong, Siming Chen, Herui Sun, Kun Yang, Kai Guo
Copolymerization of structurally distinct epoxide and cyclic ester offers polyether-block-polyester copolymers are valuable in synthetic materials. However, anionic ring-opening polymerization (ROP) of glycidyl ether is not usually compatible with subsequent...
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Versatile Preparation of Surface-Skinless Particles of Epoxy Resin-Based Monoliths Using a Well-Defined Diblock Copolymer Surfactant

RSC - Polym. Chem. latest articles - Mon, 12/04/2017 - 22:39
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01682D, PaperKeita Sakakibara, Kyoko Konishi, Norio Ishizuka, Atsushi Goto, Yoshinobu Tsujii
Epoxy resin-based monoliths, possessing bicontinuous structure that consists of a porous channel and a resin skeleton, have a broad range of applications such as chromatography; however, the preparation of spherical...
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Categories: Polymer Science News

A comparative study of redox-active and ambipolar electrochromic triphenylamine-based polyimides prepared by electrochemical polymerization and conventional polycondensation methods

RSC - Polym. Chem. latest articles - Mon, 12/04/2017 - 22:39
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01897E, PaperSheng-Huei Hsiao, Wei-Kai Liao, Guey-Sheng Liou
N,N'-Bis(4-diphenylaminophenyl)pyromellitimide (TPA-PMDI) was synthesized from the condensation reaction of 4-aminotriphenylamine with pyromellitic dianhydride (PMDA). The triphenylamine-diimide TPA-PMDI could be electrochemically polymerized into ambipolar, redox-active polyimide films on the electrode surface...
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Ethylene/propylene copolymerization catalyzed by half-titanocenes containing monodentate anionic nitrogen ligands: effect of ligands on catalytic behaviour and structure of copolymers

RSC - Polym. Chem. latest articles - Mon, 12/04/2017 - 07:26

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY01807J, PaperZhi-Qian Zhang, Jun-Teng Qu, Shu Zhang, Qiu-Ping Miao, Yi-Xian Wu
Ethylene-propylene copolymers with high molecular weight, nearly random sequence distribution and high propylene content could be synthesized by a novel T6/TIBA/MMAO catalytic system.
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Influence of the Substituents of Oxiranes on Copolymerization with Vinyl Ethers via Concurrent Cationic Vinyl-Addition and Ring-Opening Mechanisms

RSC - Polym. Chem. latest articles - Sun, 12/03/2017 - 22:20
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01292F, PaperYurika Miyamae, Arihiro Kanazawa, Ken-ichi Tamaso, Kazuhide Morino, Ryo Ogawa, Sadahito Aoshima
2,2-Disubstituted oxiranes with electron-withdrawing substituents were copolymerized with vinyl ethers (VEs) via concurrent cationic vinyl-addition and ring-opening mechanisms, leading to a design strategy for copolymerization via crossover reactions with high...
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Categories: Polymer Science News

New fluorescent through-space conjugated polymers: synthesis, optical property and explosive detection

RSC - Polym. Chem. latest articles - Sun, 12/03/2017 - 22:20
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01700F, PaperYingying Zhang, Pingchuan Shen, Bairong He, Wenwen Luo, Zujin Zhao, Ben Zhong Tang
Through-bond conjugated polymers have been widely studied and shown great potential in various applications for their conductive or luminescent properties, while through-space conjugated polymers are less explored. In this work,...
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Categories: Polymer Science News

Mannose conjugated multi-layered polymeric nano carrier system for controlled and targeted release on alveolar macrophages

RSC - Polym. Chem. latest articles - Sun, 12/03/2017 - 22:20
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY02000G, PaperR Amarnath Praphakaran, Harshavardan Shakila, Azger Dusthackeer V. N., Murugan A. Munusamy, S. Suresh Kumar, Mariappan Rajan
To improve the performance of drug delivery system in the macrophages, targeting ligand conjugated polymeric carriers have been realized to be a vital role for targeted, sustainable and controlled drug...
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Categories: Polymer Science News

Encapsulation property of hyperbranched polyglycerols as prospective drug delivery systems

RSC - Polym. Chem. latest articles - Sun, 12/03/2017 - 22:20
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01419H, PaperHaigang Wu, Ting Yin, Ke Li, Ruibing Wang, Yantian Chen, Lili Jing
Hyperbranched polyglycerols (hbPGs) were investigated as nanocarriers to encapsulate and deliver guest molecules. 1H NMR titration and 1H-1H NOESY and fluorescence experiments were performed to study molecular interaction between hbPGs...
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Preparation of Graphene/Poly(2-acryloxyethyl ferrocenecarboxylate) Nanocomposite via "Grafting-Onto" Strategy

RSC - Polym. Chem. latest articles - Sun, 12/03/2017 - 22:20
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01932G, PaperXue Jiang, Yan Deng, Wenbin Liu, Yongjun Li, Xiaoyu Huang
Graphene is of great significance for applications of fabricating new functional materials, due to its unique physical and chemical structure properties. Modification of graphene with different polymeric chains has been...
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Categories: Polymer Science News

Designing a Main-Chain Visible-Light-Labile Picolinium-Caged Polymer and Its Biological Applications

RSC - Polym. Chem. latest articles - Fri, 12/01/2017 - 10:50
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01844D, PaperTongtong Zhou, Tao Liu, Yu Bao, Ping Zhang, Casey Yan, Fujun Yao, Shuxun Cui, Yongming Chen, Xin Chen, You Yu
Designing a main-chain visible-light-labile polymer is still a challenge task in related fields. In this work, a picolinium-caged main-chain photolabile polymer (MCPP) is firstly reported, where the C-O bonds of...
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Categories: Polymer Science News

Nano-Porous Structures via Self-Assembly of Amphiphilic Triblock Copolymer: Influence of solvent and molecular weight

RSC - Polym. Chem. latest articles - Fri, 12/01/2017 - 05:44
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01853C, PaperSabrina Nehache, Mona Semsarilar, Andre Deratani, Martin In, Philippe Dieudonne, josephine laikeehim, Patrick Bron, Damien Quemener
Control of film structures made from Polystyrene-Polystyrene sodium sulfonate-Polystyrene (PS-PNaSS-PS) copolymer micellar solution is investigated in a THF/ water mixture. Four different copolymers (varying molecular weights) are synthesised via RAFT...
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Photochemical regulation of a redox-active olefin polymerization catalyst: controlling polyethylene microstructure with visible light

RSC - Polym. Chem. latest articles - Thu, 11/30/2017 - 11:24

Polym. Chem., 2018, Advance Article
DOI: 10.1039/C7PY01836C, CommunicationJordan M. Kaiser, W. Curtis Anderson, Brian K. Long
The utility of photoredox chemistry is expanded to include microstructural control of polyolefins.
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Styrene and substituted styrene grafted functional polyolefins via nitroxide mediated polymerization

RSC - Polym. Chem. latest articles - Thu, 11/30/2017 - 07:18
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01693J, PaperIlaria domenichelli, Sanjib Banerjee, Sara Taddei, Elisa Martinelli, Elisa Passaglia, Bruno Ameduri
The grafting of (functionalized) polystyrene from bulk or surface-functionalized polyolefins via nitroxide mediated polymerization is described. High density polyethylene and a poly(ethylene-co-[small alpha]-olefin) copolymer (EOC) modified with different functional 2,2,6,6-tetramethylpiperidine-1-oxyl radical...
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Morphology control in polymerized high internal phase emulsion templated via macro-RAFT agent composition: Visualizing surface chemistry

RSC - Polym. Chem. latest articles - Thu, 11/30/2017 - 05:16
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01770G, PaperAminreza Khodabandeh, R. Dario Arrua, Bryan R. Coad, Thomas Rodemann, T. Ohigashi, Nobuhiro Kosugi, Stuart Craig Thickett, Emily Hilder
A series of polymerized high internal phase emulsion (polyHIPE) materials have been prepared by using a water in oil emulsion stabilized by a macro-RAFT agent acting as a polymeric surfactant,...
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Assembly of a visible light photoreactor: an inexpensive tool for bottlebrush polymer synthesis via photoiniferter polymerization

RSC - Polym. Chem. latest articles - Thu, 11/30/2017 - 04:16

Polym. Chem., 2017, Advance Article
DOI: 10.1039/C7PY01741C, CommunicationKyle J. Arrington, John B. Matson
We report the design of a simple, inexpensive photoreactor for photoiniferter polymerization of vinyl monomers mediated by thiocarbonylthio compounds. This photoreactor allowed for the synthesis of block copolymers and well-defined bottlebrush polymers by grafting-from and grafting-through.
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Studies on the hard confinement effect on the RAFT polymerization of the monomeric ionic liquid. Unexpected triggering RAFT polymerization at 30oC

RSC - Polym. Chem. latest articles - Wed, 11/29/2017 - 11:04
Polym. Chem., 2017, Accepted Manuscript
DOI: 10.1039/C7PY01726J, PaperPaulina Ewa Maksym, Magdalena Tarnacka, Kamila Wolnica, Andrzej Dzienia, Karol Erfurt, Anna Chrobok, Andrzej Zieba, Rafal Bielas, Kamil Kaminski, Marian Paluch
For the first time, RAFT polymerization of monomeric ionic liquid under hard confinement was successfully carried out. Consequently, macromolecules of well-defined chemical structure and narrow molecular weight distribution were obtained....
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