Solvent-regulated ordering in block copolymers

نویسندگان

  • Paschalis Alexandridis
  • Richard J Spontak
چکیده

Studies of the structural polymorphism exhibited by block copolymers in the presence of selective solvents are relatively recent, but very promising in terms of fundamental understanding and practical applications. Highlighting recent advances, this review progresses from ‘dry’ ordered ( ) copolymers to solvated ordered gel-like copolymers and ( ) lastly to solvated disordered but locally organized copolymers. Organicand aqueous-solvent-based systems are concurrently examined to cross-fertilize polymer and colloid science.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Kinetically controlled nanostructure formation in self-assembled globular protein-polymer diblock copolymers.

Aqueous processing of globular protein-polymer diblock copolymers into solid-state materials and subsequent solvent annealing enables kinetic and thermodynamic control of nanostructure formation to produce block copolymer morphologies that maintain a high degree of protein fold and function. When model diblock copolymers composed of mCherry-b-poly(N-isopropylacrylamide) are used, orthogonal con...

متن کامل

Lamellar and liquid crystal ordering in solvent-annealed all-conjugated block copolymers.

All-conjugated block copolymers are an emerging class of polymeric materials promising for organic electronic applications, but further progress requires a better understanding of their microstructure including crystallinity and self-assembly through micro-phase segregation. Here, we demonstrate remarkable changes in the thin film structure of a model series of all-conjugated block copolymers w...

متن کامل

Abstract Submitted for the MAR13 Meeting of The American Physical Society In-situ Grazing-incidence Small-angle X-ray Scattering Study of Diblock Copolymer Thin Films during Solvent Annealing

Submitted for the MAR13 Meeting of The American Physical Society In-situ Grazing-incidence Small-angle X-ray Scattering Study of Diblock Copolymer Thin Films during Solvent Annealing XIAODAN GU, University of Massachusetts Amherst, ILJA GUNKEL, ALEXENDER HEXEMER, Lawrence Berkeley National lab, THOMAS RUSSELL, University of Massachusetts Amherst, UNIVERSITY OFMASSACHUSETTS AMHERST COLLABORATION...

متن کامل

Highly Ordered Nanoporous Thin Films by Blending of PSt-b-PMMA Block Copolymers and PEO Additives as Structure Directing Agents

Herein, we present a simple method for producing nanoporous templates with a high degree of lateral ordering by self-assembly of block copolymers. A key feature of this approach is control of the orientation of polymeric microdomains through the use of hydrophilic additives as structure directing agents. Incorporation of hydrophilic poly(ethylene oxide) (PEO) moieties into poly(styrene-b-methyl...

متن کامل

Coarse-grained simulation study on the self-assembly of miktoarm star-like block copolymers in various solvent conditions.

The self-assembly processes of miktoarm star-like block copolymers (Ax1)y-C-(Bx2)y, in which y homopolymer chains of type A with chain length x1 as well as y chains of type B with chain length x2 are connected to a center core C, are investigated by using Brownian dynamics simulations. We focus on the selective solvent condition, i.e., the solvent is poor for components B and C, but varies from...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1999