A study on free volume of acrylonitrile-styrene copolymer and methyl methacrylate-styrene copolymer by using positron annihilation

Qi, Chenze; Zhang, Shuihe; Wu, Yanjie; Zhong, Yuanhong; Song, Dandan; Wang, Tianmin

doi:10.1002/(sici)1099-0488(19990301)37:5<465::aid-polb7>3.0.co;2-v

J. Polym. Sci. B Polym. Phys.

1999

DOI: 10.1002/(sici)1099-0488(19990301)37:5<465::aid-polb7>3.0.co;2-v

|View full text |Cite

A study on free volume of acrylonitrile-styrene copolymer and methyl methacrylate-styrene copolymer by using positron annihilation

Chenze Qi

Shuihe Zhang

Yanjie Wu

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1999

2010

Publication Types

Select...

Article5

Relationship

Self Cite3

Independent2

Authors

Journals

Cited by 8 publications

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

The reaction mechanism of diethyl-2,3-dicyano-2,3-di(p,m-dimethoxylphenyl) succinate with styrene

et al. 1999

J. Appl. Polym. Sci.

Self Cite

View full text Add to dashboard Cite

ABSTRACT:The radical polymerization of styrene (ST) can be initiated by diethyl-2,3-dicyano-2,3-di(dimethoxyphenyl) succinate (ECPS). The reaction mechanism has been studied by means of UV, H 1 -NMR, product analysis, gel permeation chromatography, electronic spin resonance (ESR), and the conversion of monomer via time. These experimental results indicate that ECPS probably takes the place of complex with ST, and the complex interaction between ECPS and ST can take advantage of the dissociation of the COC bond. The complex interaction and thermal effect are the important factors causing the dissociation of COC bond.

show abstract

The reaction mechanism of diethyl-2,3-dicyano-2,3-di(p,m-dimethoxylphenyl) succinate with styrene

et al. 1999

J. Appl. Polym. Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

A study on free-volume properties of styrene-acrylic ester type copolymers

Zhang

et al. 1999

J. Polym. Sci. B Polym. Phys.

Self Cite

View full text Add to dashboard Cite

Effect of polymer polarity on the positronium formation

Wang

et al. 2000

J. Polym. Sci. B Polym. Phys.

Self Cite

View full text Add to dashboard Cite

Positron annihilation lifetime spectra have been measured on styrene–methyl methacrylate, styrene–acrylonitrile, and styrene–butyl methacrylate copolymers. The results show that the longest lifetime τ3 remains constant during extended PALS measurement in all experiment copolymers, and relative intensity I3 decreases to a certain extent with measured time in weak polar copolymers and remain almost unchanged in strong polar copolymers as well as ST–BMA copolymers. The observed decrease in I3 have been found to be unrelated to the microstructural change of copolymers, and, instead, to be more likely a result of the buildup of an electric field inside the copolymers during the prolonged PALS measurement. The field effect can result in the decrease of I3 due to the increase in the positrons and electrons diffusing out of the spur, but the influence of the electric field on I3 decrease with increasing the polarity of the copolymers and the softness of side groups of macromolecular chains in the copolymers. © 2000 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 38: 435–442, 2000

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

A study on free volume of acrylonitrile-styrene copolymer and methyl methacrylate-styrene copolymer by using positron annihilation

Cited by 8 publications

References 12 publications

The reaction mechanism of diethyl-2,3-dicyano-2,3-di(p,m-dimethoxylphenyl) succinate with styrene

The reaction mechanism of diethyl-2,3-dicyano-2,3-di(p,m-dimethoxylphenyl) succinate with styrene

A study on free-volume properties of styrene-acrylic ester type copolymers

Effect of polymer polarity on the positronium formation

Contact Info

Product

Resources

About