Dynamic Mechanical Analysis of Ethylene/1-Hexene Copolymers: The Effect of the Catalyst Type on the Short-Chain Branching Distribution and Properties of the Amorphous and Crystalline Phases | Sciact - CRIS-система Института катализа

Dynamic Mechanical Analysis of Ethylene/1-Hexene Copolymers: The Effect of the Catalyst Type on the Short-Chain Branching Distribution and Properties of the Amorphous and Crystalline Phases Научная публикация

Журнал

Journal of Applied Polymer Science
ISSN: 0021-8995 , E-ISSN: 1097-4628

Вых. Данные

Год: 2017, Том: 134, Номер: 14, Номер статьи : 44638, Страниц : 11 DOI: 10.1002/app.44638

Ключевые слова

catalysts, mechanical properties, polyolefins, structure–property relationships, thermal properties

Авторы

Shundrina Inna K. ^1,2 , Matsko Mikhail A. ³ , Baskakova Kseniya I. ^1,2 , Echevskaya Ludmila G. ³ , Nikolaeva Marina I. ³ , Shundrin Leonid A. ^1,2 , Zakharov Vladimir A. ^2,3

Организации

1	N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, prospect Lavrentieva 9, Novosibirsk, Russia 630090
2	Novosibirsk State University, 2 Pirogova Street, Novosibirsk, Russia 630090
3	Boreskov Institute of Catalysis, prospect Lavrentieva 5, Novosibirsk, Russia 630090

Информация о финансировании (1)

Министерство образования и науки Российской Федерации

14.607.21.0046 (RFMEFI60714X0046)

Dynamic mechanical analysis was used to study ethylene/1-hexene copolymers with different compositions, molecular weight distributions, and profiles of short-chain branching (SCB) versus molecular weight. These copolymers were produced over a highly active supported titanium–magnesium catalyst (TMC), a highly active supported vanadium–magnesium catalysts (VMC), and a supported zirconocene catalyst. A higher fraction of the crystalline phase in the copolymers prepared with VMC was shown to result in higher elastic modulus values. b relaxation was found to be sensitive to the SCB distribution versus the molecular weight. The copolymers prepared with the zirconocene catalyst and VMC were characterized by more uniform SCB distributions and higher temperatures of b relaxation compared to the copolymers prepared with TMC. The mobility of the polymer chains at room temperature in the amorphous phase obtained by the spin-probe method rose with increasing branch content in the copolymers and was not sensitive to different SCB distribution profiles

Shundrina I.K. , Matsko M.A. , Baskakova K.I. , Echevskaya L.G. , Nikolaeva M.I. , Shundrin L.A. , Zakharov V.A.
Dynamic Mechanical Analysis of Ethylene/1-Hexene Copolymers: The Effect of the Catalyst Type on the Short-Chain Branching Distribution and Properties of the Amorphous and Crystalline Phases
Journal of Applied Polymer Science. 2017. V.134. N14. 44638 :1-11. DOI: 10.1002/app.44638 WOS Scopus РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	7 сент. 2016 г.
Принята к публикации:	7 нояб. 2016 г.
Опубликована online:	23 дек. 2016 г.
Опубликована в печати:	10 апр. 2017 г.

Web of science:	WOS:000392611800007
Scopus:	2-s2.0-85007360527
РИНЦ:	29467997
Chemical Abstracts:	2016:2145629
Chemical Abstracts (print):	166:95556
OpenAlex:	W2563616232

БД	Цитирований
Web of science	5
Scopus	5
РИНЦ	4
OpenAlex	5