Segmental shadowing effect on ultraviolet depolymerization and resulting molecular weight distribution

Ezgi Erdogan; Nazmi Postacioglu; Ahmet Giz

Segmental shadowing effect on ultraviolet depolymerization and resulting molecular weight distribution

Ezgi Erdogan, Nazmi Postacioglu, Ahmet Giz

Fizik Mühendisliği Bölümü

Istanbul Technical University

Araştırma sonucu: ???type-name??? › Konferans katkısı › bilirkişi

Özet

Ultraviolet degradation of polymers in dilute solutions is simulated. The resulting molecular weight distribution and polydispersity evolutions are calculated for good, theta and poor solvents. Simulations show that, when the effect of shadowing among chain segments is taken into account, chain scission is not completely random. The effect is subtle, but it is observable in poor and theta solvents, especially in the 1/Mn and the d(1/Mn)/dt versus time graphics. Shadowing magnifies the increase in the polydispersity, when a polymer sample with a narrow molecular weight distribution is irradiated.

Orijinal dil	İngilizce
Ana bilgisayar yayını başlığı	Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015
Yayınlayan	Avestia Publishing
ISBN (Basılı)	9781927877173
Yayın durumu	Yayınlandı - 2015
Etkinlik	Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015 - Barcelona, Spain Süre: 20 Tem 2015 → 21 Tem 2015

Yayın serisi

Adı	Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering
ISSN (Elektronik)	2369-8136

???event.eventtypes.event.conference???

???event.eventtypes.event.conference???	Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015
Ülke/Bölge	Spain
Şehir	Barcelona
Periyot	20/07/15 → 21/07/15

Bibliyografik not

Publisher Copyright:
© Avestia Publishing, 2015.

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

@inproceedings{9c388069331d4c4ca0faf9bd65dfc2be,

title = "Segmental shadowing effect on ultraviolet depolymerization and resulting molecular weight distribution",

abstract = "Ultraviolet degradation of polymers in dilute solutions is simulated. The resulting molecular weight distribution and polydispersity evolutions are calculated for good, theta and poor solvents. Simulations show that, when the effect of shadowing among chain segments is taken into account, chain scission is not completely random. The effect is subtle, but it is observable in poor and theta solvents, especially in the 1/Mn and the d(1/Mn)/dt versus time graphics. Shadowing magnifies the increase in the polydispersity, when a polymer sample with a narrow molecular weight distribution is irradiated.",

keywords = "Kinetics, Molecular Weight Distribution, Polymer Degradation, Simulation, Ultraviolet Irradiation",

author = "Ezgi Erdogan and Nazmi Postacioglu and Ahmet Giz",

note = "Publisher Copyright: {\textcopyright} Avestia Publishing, 2015.; Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015 ; Conference date: 20-07-2015 Through 21-07-2015",

year = "2015",

language = "English",

isbn = "9781927877173",

series = "Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering",

publisher = "Avestia Publishing",

booktitle = "Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015",

address = "Canada",

}

Erdogan, E, Postacioglu, N & Giz, A 2015, Segmental shadowing effect on ultraviolet depolymerization and resulting molecular weight distribution. in Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015. Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering, Avestia Publishing, Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015, Barcelona, Spain, 20/07/15.

Segmental shadowing effect on ultraviolet depolymerization and resulting molecular weight distribution. / Erdogan, Ezgi; Postacioglu, Nazmi; Giz, Ahmet.
Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015. Avestia Publishing, 2015. (Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering).

Araştırma sonucu: ???type-name??? › Konferans katkısı › bilirkişi

TY - GEN

T1 - Segmental shadowing effect on ultraviolet depolymerization and resulting molecular weight distribution

AU - Erdogan, Ezgi

AU - Postacioglu, Nazmi

AU - Giz, Ahmet

N1 - Publisher Copyright: © Avestia Publishing, 2015.

PY - 2015

Y1 - 2015

N2 - Ultraviolet degradation of polymers in dilute solutions is simulated. The resulting molecular weight distribution and polydispersity evolutions are calculated for good, theta and poor solvents. Simulations show that, when the effect of shadowing among chain segments is taken into account, chain scission is not completely random. The effect is subtle, but it is observable in poor and theta solvents, especially in the 1/Mn and the d(1/Mn)/dt versus time graphics. Shadowing magnifies the increase in the polydispersity, when a polymer sample with a narrow molecular weight distribution is irradiated.

AB - Ultraviolet degradation of polymers in dilute solutions is simulated. The resulting molecular weight distribution and polydispersity evolutions are calculated for good, theta and poor solvents. Simulations show that, when the effect of shadowing among chain segments is taken into account, chain scission is not completely random. The effect is subtle, but it is observable in poor and theta solvents, especially in the 1/Mn and the d(1/Mn)/dt versus time graphics. Shadowing magnifies the increase in the polydispersity, when a polymer sample with a narrow molecular weight distribution is irradiated.

KW - Kinetics

KW - Molecular Weight Distribution

KW - Polymer Degradation

KW - Simulation

KW - Ultraviolet Irradiation

UR - http://www.scopus.com/inward/record.url?scp=85044998131&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:85044998131

SN - 9781927877173

T3 - Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering

BT - Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015

PB - Avestia Publishing

T2 - Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering, MCM 2015

Y2 - 20 July 2015 through 21 July 2015

ER -

Segmental shadowing effect on ultraviolet depolymerization and resulting molecular weight distribution

Özet

Yayın serisi

???event.eventtypes.event.conference???

Bibliyografik not

Diğer Dosyalar ve Linkler

Parmak izi

Alıntı Yap