NDLI: The solvent quality of water for poly(N-isopropylacrylamide) in the collapsed state: Implications from single-molecule studies

Content Provider	Springer Nature Link
Author	Pang, Xiang chao Cheng, Bo Cui, Shu xun
Copyright Year	2016
Abstract	Both of temperature (in water) and composition (in the water/methanol mixed solvent) can induce the coil-to-globule transition of poly(N-isopropylacrylamide) (PNIPAM). The atomic force microscope (AFM) based single molecule force spectroscopy (SMFS) has been exploited to investigate the interactions between the polymer chain and solvent at the single-molecule level. It is found that the single-chain mechanics of PNIPAM show a remarkable dependence on the two external stimuli. A confusing experimental result is that all the force-extension (F-E) curves of unfolding an individual PNIPAM globule present a feature of elastic (monotonically increasing force) stretching but not plateau (constant force) stretching predicted by theory. In this article, we clarify that the presence of the interior solvent molecules in the single-chain globule is the origin of the discrepancy between the F-E curves obtained from theory and experiment. Although both of the external stimuli do tend to lower the solvent quality for PNIPAM, water and the water/methanol mixed solvent will never be the strongly poor solvent for PNIPAM, even at the worst condition.
Starting Page	578
Ending Page	584
Page Count	7
File Format	PDF
ISSN	02567679
Journal	Chinese Journal of Polymer Science
Volume Number	34
Issue Number	5
e-ISSN	14396203
Language	English
Publisher	Chinese Chemical Society and Institute of Chemistry, CAS
Publisher Date	2016-02-05
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	PNIPAM Unfolding of the globule Elastic stretching Interior solvent Polymer Sciences Industrial Chemistry/Chemical Engineering Characterization and Evaluation of Materials Condensed Matter Physics
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Chemical Engineering Polymers and Plastics

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

Cell adhesion and surface properties of polystyrene surfaces grafted with poly(N-isopropylacrylamide)

Synthesis and characterization of temperature-sensitive cellulose-graft-poly(N-isopropylacrylamide) copolymers

Phase separation behavior and fluorescence properties of poly(N-isopropylacrylamide) with chalcone side groups in mixed solvents

Hydration and phase separation of temperature-sensitive water-soluble polymers

Biodegradable microspheres with poly(N-isopropylacrylamide) Enriched surface: Thermo-responsibility, biodegradation and drug release

Using FTIR spectroscopy to study the phase transitions of poly(N-isopropylacrylamide) in tetrahydrofuran-d $_{8}$/D$_{2}$O

Synthesis and characterization of thermosensitive poly(N-isopropylacrylamide-co-hydroxyethylacrylamide) microgels as potential carriers for drug delivery

Synthesis, characterization and drug release properties of thermosensitive poly(N-isopropylacrylamide) microgels

Synthesis of a PEG-PNIPAm thermosensitive dendritic copolymer and investigation of its self-association

The solvent quality of water for poly(N-isopropylacrylamide) in the collapsed state: Implications from single-molecule studies

Similar Documents

Cell adhesion and surface properties of polystyrene surfaces grafted with poly(N-isopropylacrylamide)

Synthesis and characterization of temperature-sensitive cellulose-graft-poly(N-isopropylacrylamide) copolymers

Phase separation behavior and fluorescence properties of poly(N-isopropylacrylamide) with chalcone side groups in mixed solvents

Hydration and phase separation of temperature-sensitive water-soluble polymers

Biodegradable microspheres with poly(N-isopropylacrylamide) Enriched surface: Thermo-responsibility, biodegradation and drug release

Using FTIR spectroscopy to study the phase transitions of poly(N-isopropylacrylamide) in tetrahydrofuran-d $_{8}$/D$_{2}$O

Synthesis and characterization of thermosensitive poly(N-isopropylacrylamide-co-hydroxyethylacrylamide) microgels as potential carriers for drug delivery

Synthesis, characterization and drug release properties of thermosensitive poly(N-isopropylacrylamide) microgels

Synthesis of a PEG-PNIPAm thermosensitive dendritic copolymer and investigation of its self-association

The solvent quality of water for poly(N-isopropylacrylamide) in the collapsed state: Implications from single-molecule studies