Macromolecules has been creating a series of Mini Virtual Issues on Twitter which highlight articles with a similar theme. Here we have collected them all in one place so readers won’t miss out!

Explore the Perspectives published in Macromolecules over the past two years

Semi-Conducting Polymers

Semi-conducting polymers are useful in many emerging applications, and the fundamentals of their synthesis, charge conduction, and organization are important to established for future applications in sensors, solar cells, and organic electronics as exemplified in these three recent Macromolecules papers.

Usefulness of Polar and Bulky Phosphonate Chain-End Solubilizing Groups in Polymeric Semiconductors
So-Huei Kang, Doyoung Lee, Wonbin Choi, Joon Hak Oh, and Changduk Yang
DOI: 10.1021/acs.macromol.1c02628

High-Performance Unipolar n-Type Conjugated Polymers Enabled by Highly Electron-Deficient Building Blocks Containing F and CN Groups
Chan Zhang, Wen Liang Tan, Zhongwei Liu, Qiao He, Yanru Li, Jianeng Ma, Anthony S. R. Chesman, Yang Han, Christopher R. McNeill, Martin Heeney, and Zhuping Fei
DOI: 10.1021/acs.macromol.2c00870

Effect of Isomerization of Linking Units on the Photovoltaic Performance of PSMA-Type Polymer Acceptors in All-Polymer Solar Cells
Liuyang Zhou, Lei Meng, Jinyuan Zhang, Shucheng Qin, Jing Guo, Xiaojun Li, Xinxin Xia, Xinhui Lu, and Yongfang Li
DOI: 10.1021/acs.macromol.2c00515


Polyelectrolytes are a class of polymers with charges along the backbone of the chain and are used in many applications that range from hydrogels to surface modifiers to drug delivery. Four recent papers in Macromolecules highlight new innovative experiment and theoretical work on polyelectrolytes.

Adsorption of Charge Sequence-Specific Polydisperse Polyelectrolytes
Vaidyanathan Sethuraman, David Zheng, David C. Morse, and Kevin D. Dorfman
DOI: 10.1021/acs.macromol.1c02623

Effect of Ethanol and Urea as Solvent Additives on PSS–PDADMA Polyelectrolyte Complexation
Mohammad Khavani, Piotr Batys, Suvesh M. Lalwani, Chikaodinaka I. Eneh, Anna Leino, Jodie L. Lutkenhaus, and Maria Sammalkorpi
DOI: 10.1021/acs.macromol.1c02533

Extraordinarily High Dielectric Breakdown Strength of Multilayer Polyelectrolyte Thin Films
Ethan T. Iverson, Hsu-Cheng Chiang, Thomas J. Kolibaba, Kendra Schmieg, and Jaime C. Grunlan
DOI: 10.1021/acs.macromol.2c00259

The pH-Dependent Swelling of Weak Polyelectrolyte Hydrogels Modeled at Different Levels of Resolution
Jonas Landsgesell, David Beyer, Pascal Hebbeker, Peter Košovan, and Christian Holm
DOI: 10.1021/acs.macromol.1c02489

Block Polymers

Block polymers are fascinating materials useful for numerous advanced technologies that include energy storage and nanotemplating. Three articles recently published in Macromolecules highlight the wonderful and interesting self-assembly behavior of these hybrid polymers.

Enhanced Electrochemical Properties of Block Copolymer Electrolytes with Blended End-Functionalized Homopolymers
Jihoon Kim, Kyeong-Jun Jeong, Kyoungwook Kim, Chang Yun Son, and Moon Jeong Park
DOI: 10.1021/acs.macromol.1c02461

Long-Range Ordered Lamellar Formation with Lower Molecular Weight PS-PMMA Block Copolymers: Significant Effects of Discrete Oligopeptides at the Junction
Tomoka Yoshimura, Tomofumi Morishita, Yoshihiro Agata, Kodai Nagashima, Kevin Wylie, Yuta Nabae, Teruaki Hayakawa, and Makoto Ouchi
DOI: 10.1021/acs.macromol.1c02569

Universality and Specificity in the Self-Assembly of Cylinder-Forming Block Copolymers under Cylindrical Confinement
Junying Yang, Qingshu Dong, Meijiao Liu, and Weihua Li
DOI: 10.1021/acs.macromol.1c02504

Rheological Analysis

The rheological behavior of polymers is critically important to understanding underlying phenomena associated with chain dynamics in a variety of macromolecular materials. In back-to-back Macromolecules Perspectives, the importance of rheological analysis, underlying theory, and associated simulations are highlighted in the realm of reversible networks and extensional flow.

Advances and New Opportunities in the Rheology of Physically and Chemically Reversible Polymers
Shilong Wu and Quan Chen
DOI: 10.1021/acs.macromol.1c01605

When Polymer Chains Are Highly Aligned: A Perspective on Extensional Rheology
Qian Huang
DOI: 10.1021/acs.macromol.1c02262

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