April 18, 2013 POLYOLEFINS: Controlling Polyolefin Properties by In-Reactor Blending: 3. Mechanical Properties 
Martin Ruff,* Reinhold W. Lang, Christian Paulik
The effects of multi-stage (slurry) polymerization on mechanical properties of in-reactor blended UHMW-PE materials is presented, and it is shown that due to a controlled polymerized particle morphology, mechanical properties, such as impact properties can be regulated.
Macromol. React. Eng. DOI: 10.1002/mren.201200077
Other contributions to the article series on "Polyolefins - Catalyst and Process Innovations" can be found here. April 03, 2013 Functional Polymers: ZnII Bisterpyridine Metallopolymers: Improved Processability by the Introduction of Polymeric Side Chains 
Andreas Wild, Anke Teichler, Christian von der Ehe, Andreas Winter, Martin D. Hager, Bing Yao, Baohua Zhang, Zhiyuan Xie, Wai-Yeung Wong,* Ulrich S. Schubert*
Tailoring of the optical and mechanical properties of bisterpyridine coordination polymers is enabled by the introduction of well-defined polymeric side chains. The resulting metallopolymers exhibit improved solubility and processability and can, therefore, easily be inkjet-printed. The photophysical properties of the so-produced homogeneous films are investigated and a proof-of-principle polymer light-emitting device can be constructed.
Macromol. Chem. Phys., DOI: 10.1002/macp.201300003
Other contributions to the special series on functional polymers can be found here. March 19, 2013 POLYOLEFINS: Analysis of Slurry-Phase Co-Polymerization of Ethylene and 1-Butene by Ziegler–Natta Catalysts Part 1: Experimental Activity Profiles 
John T. McCoy, Joao B. P. Soares, Randhir Rawatlal*
The activity of Ziegler–Natta catalysts for ethylene polymerization is studied, and a method developed to extract meaningful kinetic parameters from experimental data. Four model parameters are required to reproduce polymerization rate profiles for a range of laboratory experimental conditions.
Macromol. React. Eng. DOI: 10.1002/mren.201200078
Other contributions to the article series on "Polyolefins - Catalyst and Process Innovations" can be found here. March 19, 2013 TALENT: Non-Natural Amino Acids for Protein Engineering and New Protein Chemistries 
Inchan Kwon,* Sung In Lim
Two distinct strategies, residue-specific and site-specific incorporation, allow biosynthesis of a protein containing non-natural amino acids. Non-natural amino acids introduced into a protein can be used to manipulate spectral and catalytic properties of a protein and provide new protein chemistries for bioconjugation with versatile molecules.
Macromol. Chem. Phys., DOI: 10.1002/macp.201200710
More information on the invited Talent, Trend, and Highlight articles in Macromolecular Chemistry and Physics can be found here. February 07, 2013 TREND: MAPLE Deposition of Macromolecules 
Kimberly B. Shepard, Rodney D. Priestley*
Matrix-assisted pulsed laser evaporation (MAPLE) is used to deposit thin films of a vast range of macromolecules, including polymers, proteins, and composite materials. The numerous advantages of MAPLE are discussed, and recent reports of MAPLE-deposited films for electronic and medical applications are highlighted.
Macromol. Chem. Phys., DOI: 10.1002/macp.201200621
More information on the invited Talent, Trend, and Highlight articles in Macromolecular Chemistry and Physics can be found here. January 31, 2013 Functional Polymers: Morphology and Field-Effect Transistor Characteristics of Electrospun Nanofibers Prepared From Crystalline Poly(3-hexylthiophene) and Polyacrylate Blends 
Chih-Chieh Chou, Hung-Chin Wu, Chih-Jung Lin, Ebrahim Ghelichkhani, Wen-Chang Chen*
Nanofiber field-effect transistors (FETs) based on crystalline poly(3-hexylthiophene) (P3HT) and poly(stearyl acrylates) (PSA) or poly(n-lauryl acrylate) (PnLA) blends are fabricated via coaxial electrospinning (ES). The maximum FET mobility is obtained for P3HT/PSA (1:0.2) blends. The crystalline PSA promotes the larger crystallinity of P3HT in the ES nanofibers, which subsequently leads to the observation of higher mobility and improves the air stability.
Macromol. Chem. Phys., DOI: 10.1002/macp.201200580
Other contributions to the special series on functional polymers can be found here. January 21, 2013 Functional Polymers: Accessing New DPP-Based Copolymers by Direct Heteroarylation Polymerization 
Jean-Rémi Pouliot, Lauren G. Mercier, Samuel Caron, Mario Leclerc*
The direct heteroarylation polymerization methodology was adapted for the diketopyrrolopyrrole moiety, giving rise to copolymers that were difficult to obtain from standard Stille or Suzuki couplings. These new low-bandgap polymers proved to be efficient electron-transporting materials enabling possible applications in all-plastic solar cells.
Macromol. Chem. Phys., DOI: 10.1002/macp.201200573
Other contributions to the special series on functional polymers can be found here. January 21, 2013 Functional Polymers: Thermochromic and Photovoltaic Properties of an Alternating Copolymer of Dithieno[3,2-b:2',3'-d]thiophene and Thieno[3,4-c]pyrrole-4,6-dione ![Functional Polymers: Thermochromic and Photovoltaic Properties of an Alternating Copolymer of Dithieno[3,2-b:2',3'-d]thiophene and Thieno[3,4-c]pyrrole-4,6-dione](functpolym_214_4_Ding.jpg)
Zhao Li,* Patrick Malenfant, Ye Tao, Jianfu Ding*
A new alternating conjugated polymer, PDTTTPD, based on electron-rich dithieno[3,2-b:2',3'-d]thiophene (DTT) and electron-deficient thieno[3,4-c]pyrrole-4,6-dione (TPD) building block is designed and synthesized. PDTTTPD shows strong thermochromic effect in chlorobenzene solution and modest PCE of 2.1% in organic solar cell devices due to the steric hindrance induced twisting of the conjugated main chain. A general design rule is then suggested to control the main chain conformation of polymer materials for photovoltaic applications.
Macromol. Chem. Phys., DOI: 10.1002/macp.201200468
Other contributions to the special series on functional polymers can be found here. January 17, 2013 Functional Polymers: Recent Progress in Polymer White Light-Emitting Materials and Devices 
Chao Tang*, Xu-Dong Liu, Feng Liu, Xu-Liang Wang, Hui Xu, Wei Huang*
Polymer white light-emitting diodes (PWLEDs) are one of the most intensively researched topics in PLED. At present, there are two main methods to realize white emission in PLED. The one is to dope the host with different guests with different color, and the other is to prepare single white polymer by designing the molecular structure. Improving the performance of PWLED depends on the understanding of materials structure and properties, materials purification, and device engineering.
Macromol. Chem. Phys., DOI: 10.1002/macp.201200305
Other contributions to the special series on functional polymers can be found here. January 17, 2013 Functional Polymers: Screening of Film-Formation Qualities of Various Solvent Systems for π-Conjugated Polymers Via Combinatorial Inkjet Printing 
Anke Teichler, Jolke Perelaer, Ulrich S. Schubert*
A systematical investigation of the relationships between the choice of solvent system and the film quality of inkjet printed π-conjugated polymer films is presented. A significant influence of the boiling points of the chosen main and co-solvents is observed, leading to the identification of new solvent systems that reveal improved film qualities.
Macromol. Chem. Phys., DOI: 10.1002/macp.201200547
Other contributions to the special series on functional polymers can be found here. January 03, 2013 TREND: Recent Trends in the Chemistry of Shape-Memory Polymers 
Konstanze K. Julich-Gruner, Candy Löwenberg, Axel T. Neffe, Marc Behl, Andreas Lendlein*
Shape-memory polymers (SMPs) are stimuli-sensitive materials capable of performing complex movements on demand. This trend article highlights current approaches in the chemistry of SMPs (e.g., tailoring segment chemistry to integrate additional functions). It is illustrated that SMPs can be constructed on the molecular level as a modular system of different building blocks and netpoints.
Macromol. Chem. Phys., DOI: 10.1002/macp.201200607
More information on the invited Talent, Trend, and Highlight articles in Macromolecular Chemistry and Physics can be found here. August 15, 2012 Stem Cells: Maintaining Stem Cells with Hydrogels 
Yongxing Liu, Lyndon F. Charles, Thomas I. Zarembinski, Kalle I. Johnson, Sarah K. Atzet, Robin L. Wesselschmidt, Mark E. Wight, Liisa T. Kuhn*
Traditionally the maintenance and the propagation of stem cells require feeder cells like mitotically inactivated mouse embryonic fibroblasts or human fibroblasts. The use of these cells comes with some drawbacks like problems in large-scale culture, limited genetic manipulations of the human pluripotent stem cells, and xeno-contamination, particularly when mouse feeder cells are used. Widely used feeder-free systems like MatrigelTM are problematic as they might still carry xenogeneic pathogens and vary from lot to lot. Liisa Kuhn (University of Connecticut Health Center) and coworkers now showed that a fully defined gelatin-modified hyaluronan hydrogel (HyStem-CTM) is able to maintain mouse embryonic stem cells and human induced pluripotent stem cells (hiPSCs) in culture while retaining their growth and pluripotent characteristics. Modified HA hydrogels like the one shown here provide a safer direction towards completely animal-free conditions for clinical application, handling, and understanding of hPSCs.
Macromol. Biosci., DOI: 10.1002/mabi.201200043 | April 18, 2013
POLYOLEFINS: Controlling Polyolefin Properties by In-Reactor Blending: 3. Mechanical Properties April 03, 2013
Functional Polymers: ZnII Bisterpyridine Metallopolymers: Improved Processability by the Introduction of Polymeric Side Chains March 19, 2013
POLYOLEFINS: Analysis of Slurry-Phase Co-Polymerization of Ethylene and 1-Butene by Ziegler–Natta Catalysts Part 1: Experimental Activity Profiles March 19, 2013
TALENT: Non-Natural Amino Acids for Protein Engineering and New Protein Chemistries February 07, 2013
TREND: MAPLE Deposition of Macromolecules January 31, 2013
Functional Polymers: Morphology and Field-Effect Transistor Characteristics of Electrospun Nanofibers Prepared From Crystalline Poly(3-hexylthiophene) and Polyacrylate Blends January 21, 2013
Functional Polymers: Accessing New DPP-Based Copolymers by Direct Heteroarylation Polymerization January 21, 2013
Functional Polymers: Thermochromic and Photovoltaic Properties of an Alternating Copolymer of Dithieno[3,2-b:2',3'-d]thiophene and Thieno[3,4-c]pyrrole-4,6-dione January 17, 2013
Functional Polymers: Recent Progress in Polymer White Light-Emitting Materials and Devices January 17, 2013
Functional Polymers: Screening of Film-Formation Qualities of Various Solvent Systems for π-Conjugated Polymers Via Combinatorial Inkjet Printing January 03, 2013
TREND: Recent Trends in the Chemistry of Shape-Memory Polymers August 15, 2012
Stem Cells: Maintaining Stem Cells with Hydrogels August 15, 2012
Stem Cells: Hydrogel/Mineral Composites for Bone Tissue Repair August 15, 2012
Stem Cells: Artificial Organs August 07, 2012
Stem Cells: Hydrogels from Natural Polysaccharides as 3D Cell Delivery System August 07, 2012
Stem Cells: Electrospun PLA Fibers for Controlled TCP Release August 02, 2012
Stem Cells: Fiber Thickness to Direct Stem Cell Differentiation August 02, 2012
Stem Cells: PLLA/MWCNT Composites as Conductive Biomaterials June 01, 2012
Stem Cells: Understanding Embryo Formation May 31, 2012
Stem Cells: Multifunctionalized Nanoparticle Systems for Treatment of Central Nervous System Diseases March 23, 2012
Stem Cells: Gelatin-Based Hydrogels as Potential Implantable Carriers for Stem Cells March 22, 2012
Stem Cells: Polymeric Systems for Tissue Engineering and Biomedical Applications January 31, 2012
Stem Cells: Polymer-based Scaffold Designs For In Situ Vascular Tissue Engineering: Controlling Recruitment and Differentiation Behavior of Endothelial Colony Forming Cells December 20, 2011
Stem Cells: Mechanical Properties and Topographical Features in Concert - Influence on Cell Migration December 19, 2011
Stem Cells: A Dextran-Based Polymer as Cell-Detaching Substrate October 24, 2011
Stem Cells: Tissue-Specific Stem Cell Differentiation in an in vitro Airway Model October 23, 2011
Stem Cells: Pullulan Hydrogels for Skin Regeneration October 22, 2011
Stem Cells: Advanced Polymers for Stem Cell Research - The Series Continues June 21, 2011
Stem Cells: A Library of Polyureas for Ligament Tissue Engineering April 05, 2011
Stem Cells: A Tool for Studying Stem Cells during Wound-Healing Processes April 05, 2011
Stem Cells: Polymeric Scaffold for Adipose Stem Cells in Bone Tissue Engineering March 16, 2011
Stem Cells: ECM Functionalized Microcavities to Control Hematopoietic Stem and Progenitor Cell Fate March 16, 2011
Stem Cells: Injectable Scaffold for Cardiac Tissue Engineering February 17, 2011
Stem Cells: Moving Gradient Generation to the Third Dimension February 15, 2011
Stem Cells: Low Thrombogenicity Coatings for Vascular Grafts January 14, 2011
Stem Cells: Biodegradable Elastomers for Tissue Engineering and Cell–Biomaterial Interactions December 16, 2010
Stem Cells: Agarose-Alginate Cryogel for Bioengineering Applications December 16, 2010
Stem Cells: How to Sterilize PET Fibers for Vascular Grafts November 09, 2010
Stem Cells: Advanced Polymers for Stem Cell Biology and Medicine Archive |
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