Archive for December, 2019

Welcome to our new Associate Editor Professor Zhibo Li

We are delighted to announce Professor Zhibo Li (Qingdao University of Science and Technology,) as a new Associate Editor for Polymer Chemistry!

Professor Zhibo LiZhibo Li obtained his B.S. (1998) and Master (2001) degree from the University of Science and Technology of China (USTC). He then completed his Ph.D. working on self-assembly of triblock copolymers in the Chemistry Department, University of Minnesota in 2006. After that, he spent two and half years in UCLA as a postdoctoral scholar. In 2009, he became a professor in the Institute of Chemistry, Chinese Academy of Sciences, and moved to the Qingdao University of Science and Technology in 2015. He was winner of the National Science Fund for Distinguished Young Scholars (2012), and became the Fellow of Royal Society of Chemistry (2018). His research interests include design and synthesis of stimuli-responsive polypeptides, preparation of biodegradable polyesters from biobased monomers, developing organocatalysts and phosphazene  superbase for ring opening (co)polymerization of cyclic esters and epoxides, and studying the self-assembly of copolymers with multi-hydrogen bonding interactions.

 

Read some of his recent articles below for FREE until 17th January!

Self-crosslinking assemblies with tunable nanostructures from photoresponsive polypeptoid-based block copolymers
Jirui Wei,   Jing Sun,   Xu Yang,   Sifan Ji,   Yuhan Wei  and  Zhibo Li
Polym. Chem., 2020, Advance Article (Part of our 2020 Emerging Investigators issue)

Fast, selective and metal-free ring-opening polymerization to synthesize polycarbonate/polyester copolymers with high incorporation of ethylene carbonate using an organocatalytic phosphazene base
Chuanzhi Wei,   Xinhui Kou,   Shaofeng Liu  and  Zhibo Li
Polym. Chem., 2019,10, 5905-5912

Phosphazene superbase catalyzed ring-opening polymerization of cyclotetrasiloxane toward copolysiloxanes with high diphenyl siloxane content
Jinfeng Shi,   Na Zhao,   Shuang Xia,   Shaofeng Liu  and  Zhibo Li
Polym. Chem., 2019,10, 2126-2133

A facile method to prepare high molecular weight bio-renewable poly(γ-butyrolactone) using a strong base/urea binary synergistic catalytic system
Yong Shen,    Zhichao Zhao,   Yunxin Li,   Shaofeng Liu,   Fusheng Liu  and  Zhibo Li
Polym. Chem., 2019,10, 1231-1237

Schiff base and reductive amination reactions of α-amino acids: a facile route toward N-alkylated amino acids and peptoid synthesis
Xiaohui Fu,   Zheng Li,   Jirui Wei,   Jing Sun  and  Zhibo Li
Polym. Chem., 2018,9, 4617-4624

Preparation of biorenewable poly(γ-butyrolactone)-b-poly(l-lactide) diblock copolyesters via one-pot sequential metal-free ring-opening polymerization
Yong Shen,   Jinbo Zhang,   Na Zhao,   Fusheng Liu  and  Zhibo Li
Polym. Chem., 2018,9, 2936-2941


As a Polymer Chemistry Associate Editor, Zhibo will be handling submissions to the journal.

Why not submit your next paper to his Editorial Office?

 

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Welcome to our new Associate Editor Professor Rongrong Hu

Professor Rongrong Hu

We are delighted to announce Professor Rongrong Hu (South China University of Technology) as a new Associate Editor for Polymer Chemistry!

Rongrong Hu received her B.S. degree from Peking University and her PhD degree from Hong Kong University of Science and Technology. She is currently a Professor of the State Key Laboratory of Luminescent Materials and Devices at South China University of Technology.

She has published over 110 peer-reviewed articles and reviews. Her research interests include (1) the development of alkyne or isocyanide-based multicomponent polymerization methodology through the combination of organic and polymer synthesis, and (2) luminescent polymers with diverse structures and applications. Her current research focuses on the development of multicomponent polymerizations of elemental sulfur and sulfur-containing functional polymers.

 

Read some of her recent articles below for free until the 17th January!

Room temperature multicomponent polymerizations of alkynes, sulfonyl azides, and N-protected isatins toward oxindole-containing poly(N-acylsulfonamide)s
Liguo Xu,   Fan Zhou,   Min Liao,   Rongrong Hu*  and  Ben Zhong Tang*
Polym. Chem., 2018,9, 1674-1683, Paper (Part of our 2018 Emerging Investigators series)

Red-emissive azabenzanthrone derivatives for photodynamic therapy irradiated with ultralow light power density and two-photon imaging
Qiguang Zang,   Jiayi Yu,   Wenbin Yu,   Jun Qian,   Rongrong Hu*  and  Ben Zhong Tang*
Chem. Sci., 2018,9, 5165-5171, Edge Article

Fluorescence visualization of crystal formation and transformation processes of organic luminogens with crystallization-induced emission characteristics
Chao Zheng,   Qiguang Zang,   Han Nie,   Weitao Huang,   Zujin Zhao,   Anjun Qin,   Rongrong Hu*  and  Ben Zhong Tang*
Mater. Chem. Front., 2018,2, 180-188, Research Article

Thermoresponsive AIE polymers with fine-tuned response temperature
Tingzhong Li,   Sicong He,   Jianan Qu,   Hao Wu,   Shuizhu Wu,   Zujin Zhao,   Anjun Qin,   Rongrong Hu*  and  Ben Zhong Tang*
J. Mater. Chem. C, 2016,4, 2964-2970, Paper


As a Polymer Chemistry Associate Editor, Rongrong will be handling submissions to the journal.

Why not submit your next paper to her Editorial Office?

 

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Paper of the month: Synthesis of block copolymers using poly(methyl methacrylate) with unsaturated chain end through kinetic studies

Graphical abstract for the article c9py01367a

The use of a polymethylmethacrylate (PMMA) containing an unsaturated chain end as a macroinitiator during reversible complexation mediated polymerization has been previously reported by Goto and coworkers. Typically, such macroinitiators can also be used as macromonomers to generate branched polymers via propagation. In this work, Goto and co-workers elegantly demonstrate that the occurrence of addition-fragmentation chain transfer and propagation strongly depends on the temperature during the polymerization of styrene. Through carefully monitoring the kinetics of the polymerization of styrene, the authors discovered that propagation is predominant below 60 ̊C, consistent with previous reports. However, upon elevating the temperature (e.g. 120 ̊C), addition-fragmentation chain transfer dominates instead. This discovery then allowed access to the efficient synthesis of block copolymers with PMMA and polystyrene at high temperatures. Importantly, addition-fragmentation chain transfer was also predominant over propagation during the polymerizations of acrylonitrile and acrylates yielding well-defined block copolymers. PMMAs with different molecular weights were also investigated and the polymerization was controlled utilizing iodine transfer polymerization for styrene and reversible complexation mediated polymerization for the other monomers. Such an approach is highly advantageous due to the ease of the operation and it is expected to be a practical alternative for efficient block copolymer synthesis.

Tips/comments directly from the authors:

  1. The proper purification of polymers and the careful NMR analysis were important for obtaining the accurate kinetic data. The kinetic study provided a useful idea enabling the synthesis of block copolymers of PMMA with polystyrene (PSt).
  2. Block copolymers of PMMA with PSt, polyacrylonitrile, and polyacrylates are accessible. Relatively high monomer conversions are achievable.
  3. Not only the isolated alkyl iodide but also the alkyl iodide in situ generated from iodine (I2) and azo compound can effectively be used as the initiating dormant species. The in situ method is less expensive and robust and hence can be a practically attractive

Read the full article now for FREE until 10th January!

Synthesis of block copolymers using poly(methyl methacrylate) with unsaturated chain end through kinetic studies, Polym. Chem., 2019, 10, 5617-5625, DOI: 10.1039/c9py01367a

 

About the web writer

Professor Athina AnastasakiDr. Athina Anastasaki is an Editorial Board Member and a Web Writer for Polymer Chemistry. Since January 2019, she joined the Materials Department of ETH Zurich as an Assistant Professor to establish her independent research group.

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