scholarly journals Epoxy-functionalised 4-vinylguaiacol for the synthesis of bio-based, degradable star polymers via a RAFT/ROCOP strategy

2020 ◽  
Vol 11 (36) ◽  
pp. 5844-5850
Author(s):  
Thomas M. McGuire ◽  
Masato Miyajima ◽  
Mineto Uchiyama ◽  
Antoine Buchard ◽  
Masami Kamigaito
Keyword(s):  
Star Polymers ◽  
Epoxy Derivative

An epoxy derivative of a naturally occuring vinylphenolic compound, 4-vinylguaiacol, was polymerised using a RAFT/ROCOP strategy and produced ester cross-linked star polymers which could be selectively degraded under acid conditions.

Porphyrin-functionalized coordination star polymers and their potential applications in photodynamic therapy

2019 ◽  
Vol 10 (45) ◽  
pp. 6116-6121 ◽  
Author(s):  
Tan Ji ◽  
Lei Xia ◽  
Wei Zheng ◽  
Guang-Qiang Yin ◽  
Tao Yue ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Self Assembly ◽  
Star Polymers ◽  
New Family ◽  
Potential Applications

We present a new family of porphyrin-functionalized coordination star polymers prepared through combination of coordination-driven self-assembly and post-assembly polymerization. Their self-assembly behaviour in water and potential for photodynamic therapy were demonstrated.

Self-Immolative Bottlebrush Polypentenamers and their Macromolecular Metamorphosis

2019 ◽  
Author(s):  
William Neary ◽  
Justin Kennemur
Keyword(s):  
Star Polymers ◽  
End To End

The complete depolymerization of a polypentenamer bottlebrush backbone and the kinetic principles involved are discussed. The deconstruction of the bottlebrush occurs from end-to-end in a self-immolative fashion producing individual linear grafts. The phenomenon paints a clearer picture on the original bottlebrush design. Architecture transformations from bottlebrush to linear to star polymers through facile means is explored.<br>

PEO-based electrolytes blended with star polymers with precisely imprinted polymeric pseudo-crown ether cavities for alkali metal ion batteries

2019 ◽  
Vol 576 ◽  
pp. 182-189 ◽  
Author(s):  
Zhuliu Xiao ◽  
Binghua Zhou ◽  
Jirong Wang ◽  
Cai Zuo ◽  
Dan He ◽  
...  
Keyword(s):  
Crown Ether ◽  
Alkali Metal ◽  
Metal Ion ◽  
Star Polymers ◽  
Alkali Metal Ion

Redox Responsive Behavior of Thiol/Disulfide-Functionalized Star Polymers Synthesized via Atom Transfer Radical Polymerization

2010 ◽  
Vol 43 (9) ◽  
pp. 4133-4139 ◽  
Author(s):  
Jun Kamada ◽  
Kaloian Koynov ◽  
Cathrin Corten ◽  
Azhar Juhari ◽  
Jeong Ae Yoon ◽  
...  
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Star Polymers ◽  
Atom Transfer ◽  
Redox Responsive ◽  
Responsive Behavior

Noncovalent Functionalization of Graphene Nanosheets with Cluster-Cored Star Polymers and Their Reinforced Polymer Coating

2015 ◽  
Vol 4 (9) ◽  
pp. 974-978 ◽  
Author(s):  
Shan Wang ◽  
Haolong Li ◽  
Dan Li ◽  
Tianyang Xu ◽  
Shilin Zhang ◽  
...  
Keyword(s):  
Polymer Coating ◽  
Graphene Nanosheets ◽  
Star Polymers ◽  
Reinforced Polymer ◽  
Noncovalent Functionalization

scholarly journals Investigation of Ring and Star Polymers in Confined Geometries: Theory and Simulations

Entropy ◽  
2021 ◽  
Vol 23 (2) ◽  
pp. 242
Author(s):  
Joanna Halun ◽  
Pawel Karbowniczek ◽  
Piotr Kuterba ◽  
Zoriana Danel
Keyword(s):  
Star Polymers ◽  
Polymer Chains ◽  
The Other ◽  
Nano Particles ◽  
Dilute Solution ◽  
Confined Geometries ◽  
Density Profiles ◽  
Ideal Ring ◽  
Ring Polymer ◽  
Monomer Density

The calculations of the dimensionless layer monomer density profiles for a dilute solution of phantom ideal ring polymer chains and star polymers with f=4 arms in a Θ-solvent confined in a slit geometry of two parallel walls with repulsive surfaces and for the mixed case of one repulsive and the other inert surface were performed. Furthermore, taking into account the Derjaguin approximation, the dimensionless layer monomer density profiles for phantom ideal ring polymer chains and star polymers immersed in a solution of big colloidal particles with different adsorbing or repelling properties with respect to polymers were calculated. The density-force relation for the above-mentioned cases was analyzed, and the universal amplitude ratio B was obtained. Taking into account the small sphere expansion allowed obtaining the monomer density profiles for a dilute solution of phantom ideal ring polymers immersed in a solution of small spherical particles, or nano-particles of finite size, which are much smaller than the polymer size and the other characteristic mesoscopic length of the system. We performed molecular dynamics simulations of a dilute solution of linear, ring, and star-shaped polymers with N=300, 300 (360), and 1201 (4 × 300 + 1-star polymer with four arms) beads accordingly. The obtained analytical and numerical results for phantom ring and star polymers are compared with the results for linear polymer chains in confined geometries.

Branch-Point Motion in Asymmetric Star Polymers

2005 ◽  
Vol 38 (10) ◽  
pp. 4484-4494 ◽  
Author(s):  
Jung Hun Lee ◽  
Lewis J. Fetters ◽  
Lynden A. Archer
Keyword(s):  
Branch Point ◽  
Star Polymers ◽  
Point Motion
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