Polystyrene-block-poly(ethylene oxide) Bottlebrush Block Copolymer Morphology Transitions: Influence of Side Chain Length and Volume Fraction

2017 ◽  
Vol 50 (4) ◽  
pp. 1503-1511 ◽  
Author(s):  
Yue Gai ◽  
Dong-Po Song ◽  
Benjamin M. Yavitt ◽  
James J. Watkins
Keyword(s):  
Block Copolymer ◽  
Ethylene Oxide ◽  
Chain Length ◽  
Volume Fraction ◽  
Side Chain ◽  
Side Chain Length ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Nanostructure Dependent Surface Energy of Silica Nanorod Arrays through Block Copolymer Templating Processes

2011 ◽  
Vol 1312 ◽  
Author(s):  
Yongbin Zhao ◽  
Aihua Chen ◽  
Tomokazu Iyoda
Keyword(s):  
Block Copolymer ◽  
Volume Fraction ◽  
Contact Angles ◽  
Side Chain ◽  
Nanorod Arrays ◽  
Copolymer Films ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Hexagonally Ordered ◽  
Center Distance

ABSTRACTThe self-assembled block copolymer films with poly (ethylene oxide) (PEO) and hydrophobic polymetharylate (PMA) with azobenzene mesogen in the side chain, denoted as PEOm-b-PMA(Az)n, were used as the template to prepare hexagonally ordered silica nanorod arrays by immersing the template films in the silicate precursor containing tetraetoxysilane (TEOS). The diameter and the center-to-center distance of the SiO2 nanorod arrays were controlled by selecting the block copolymer with different PEO volume fraction. In addition, the contact angles of different kinds’ solvents for the SiO2 nanorod arrays were characterized. We further found, the diameter and the period distance of silica nanorods are very important factors for controlling the contact angle of different kind’s solvents on the surface of the SiO2 nanorod arrays.

Glucose-Responsive Hybrid Nanoassemblies in Aqueous Solutions: Ordered Phenylboronic Acid within Intermixed Poly(4-hydroxystyrene)-block-poly(ethylene oxide) Block Copolymer

2015 ◽  
Vol 16 (12) ◽  
pp. 3731-3739 ◽  
Author(s):  
Alicja Matuszewska ◽  
Mariusz Uchman ◽  
Agnieszka Adamczyk-Woźniak ◽  
Andrzej Sporzyński ◽  
Stergios Pispas ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Ethylene Oxide ◽  
Aqueous Solutions ◽  
Phenylboronic Acid ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

A study on emulsion stabilization induced with linear and cyclized polystyrene-poly(ethylene oxide) block copolymer surfactants

2015 ◽  
Vol 47 (5) ◽  
pp. 408-412 ◽  
Author(s):  
Eisuke Baba ◽  
Toshiaki Yatsunami ◽  
Takuya Yamamoto ◽  
Yasuyuki Tezuka
Keyword(s):  
Block Copolymer ◽  
Ethylene Oxide ◽  
Poly Ethylene Oxide ◽  
Emulsion Stabilization ◽  
Poly Ethylene

Nanostructured Polymers Obtained from Polyethylene-block-poly(ethylene oxide) Block Copolymer in Unsaturated Polyester

2007 ◽  
Vol 40 (7) ◽  
pp. 2532-2538 ◽  
Author(s):  
Christophe Sinturel ◽  
Marylène Vayer ◽  
René Erre ◽  
Heinz Amenitsch
Keyword(s):  
Block Copolymer ◽  
Ethylene Oxide ◽  
Unsaturated Polyester ◽  
Nanostructured Polymers ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

scholarly journals Block copolymer compatibilization driven frustrated crystallization in electrospun nanofibers of polystyrene/poly(ethylene oxide) blends

RSC Advances ◽  
2018 ◽  
Vol 8 (32) ◽  
pp. 17989-18007 ◽  
Author(s):  
Pratick Samanta ◽  
Rajiv Srivastava ◽  
Bhanu Nandan
Keyword(s):  
Block Copolymer ◽  
Ethylene Oxide ◽  
Electrospun Nanofibers ◽  
Crystallization Behaviour ◽  
Confined Crystallization ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Confined crystallization behaviour of poly(ethylene oxide) (PEO) was studied in electrospun nanofibers of the phase-separated blends of polystyrene (PS) and PEO compatibilized with polystyrene-block-poly(ethylene oxide) (PS-b-PEO) block copolymer.

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