NDLI: The Core-Shell Approach to Formation of Ordered Nanoporous Silicas by MPEG-b-PLA Block Copolymers

Content Provider	Springer Nature Link
Author	Chang, Jeong Ho Kim, Kyung Ja
Copyright Year	2005
Abstract	Selected MPEG-b-PLA block copolymer templates have been synthesized by ring-opening polymerization, with systematic variation of the chain lengths of the hydrophilic and hydrophobic blocks. The size and shape of the micelles that spontaneously form in solution are controlled by the characteristics of the block copolymer template. Tunable pore sizes ranging from 2 to 8 nm were achieved in the templated synthesis of ordered nanoporous silica by increasing the hydrophobic chain lengths. The highest surface area observed by BET analysis was 660 m$^{2}$/g. The formation mechanism of these nanoporous structures, obtained by controlling the micelle size, has been confirmed using both liquid and solid state $^{13}$C and $^{29}$Si NMR techniques. This work verifies the formation mechanism of nanoporous structures in which the pore size and wall thickness are closely dependent on the size of the hydrophobic cores and hydrophilic shells of the block copolymer templates.
Starting Page	15
Ending Page	18
Page Count	4
File Format	PDF
ISSN	09280707
Journal	Journal of Sol-Gel Science and Technology
Volume Number	33
Issue Number	1
e-ISSN	15734846
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2005-01-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	block copolymers core-shell mechanism micelle nanoporous structure sol-gel reaction Inorganic Chemistry Optical and Electronic Materials Ceramics, Glass, Composites, Natural Methods
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Chemistry Materials Chemistry Biomaterials Condensed Matter Physics Electronic, Optical and Magnetic Materials

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Al$_{2}$O$_{3}$/TiO$_{2}$ core/shell powder derived by novel sol–gel routes

Synthesis of hollow silicon nanospheres encapsulated with a carbon shell through sol–gel coating of polystyrene nanoparticles

Crucial factors affecting the physicochemical properties of sol–gel produced Fe$_{3}$O$_{4}$@SiO$_{2}$–NH$_{2}$ core–shell nanomaterials

Synthesis and properties of Co–Pt alloy silica core-shell particles

Preparation and optical properties of TiO$_{2−x }$N$_{x}$/Ni$_{0.5}$Zn$_{0.5}$Fe$_{2}$O$_{4}$ core–shell nanocatalyst from sol–gel-hydrothermal process

Antibacterial biocomposite materials based on essential oils embedded in sol–gel hybrid silica matrices

Application of Chromium-Containing Silica for Synthesising Functional Glasslike Materials by the Sol–Gel Method

Nanoporous Silicas from Cationic Polymer-Silica Hybrids

Synthesis of novel Schiff base doped sol–gel silicas

The Core-Shell Approach to Formation of Ordered Nanoporous Silicas by MPEG-b-PLA Block Copolymers

Similar Documents

Al$_{2}$O$_{3}$/TiO$_{2}$ core/shell powder derived by novel sol–gel routes

Synthesis of hollow silicon nanospheres encapsulated with a carbon shell through sol–gel coating of polystyrene nanoparticles

Crucial factors affecting the physicochemical properties of sol–gel produced Fe$_{3}$O$_{4}$@SiO$_{2}$–NH$_{2}$ core–shell nanomaterials

Synthesis and properties of Co–Pt alloy silica core-shell particles

Preparation and optical properties of TiO$_{2−x }$N$_{x}$/Ni$_{0.5}$Zn$_{0.5}$Fe$_{2}$O$_{4}$ core–shell nanocatalyst from sol–gel-hydrothermal process

Antibacterial biocomposite materials based on essential oils embedded in sol–gel hybrid silica matrices

Application of Chromium-Containing Silica for Synthesising Functional Glasslike Materials by the Sol–Gel Method

Nanoporous Silicas from Cationic Polymer-Silica Hybrids

Synthesis of novel Schiff base doped sol–gel silicas

The Core-Shell Approach to Formation of Ordered Nanoporous Silicas by MPEG-b-PLA Block Copolymers