scholarly journals Synthesis and Characterization of Graft Copolymers Poly(isoprene-g-styrene) of High Molecular Weight by a Combination of Anionic Polymerization and Emulsion Polymerization

2015 ◽  
Vol 54 (4) ◽  
pp. 1292-1300 ◽  
Author(s):  
Wenwen Wang ◽  
Weiyu Wang ◽  
Hui Li ◽  
Xinyi Lu ◽  
Jihua Chen ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Emulsion Polymerization ◽  
High Molecular Weight ◽  
Anionic Polymerization ◽  
Graft Copolymers ◽  
Synthesis And Characterization

Synthesis and characterization of low- and high-molecular-weight products based on 5-vinyl-2-norbornene

2019 ◽  
Author(s):  
Ekaterina S. Piskunova ◽  
Sergey V. Shorunov ◽  
Dmitry A. Alentiev ◽  
Maxim V. Bermeshev
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Synthesis And Characterization

Synthesis and Characterization of High-Molecular-Weight Syndiotactic Amorphous Polypropylene

2003 ◽  
Vol 125 (36) ◽  
pp. 10913-10920 ◽  
Author(s):  
Claudio De Rosa ◽  
Finizia Auriemma ◽  
Odda Ruiz de Ballesteros ◽  
Luigi Resconi ◽  
Anna Fait ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Synthesis And Characterization

Synthesis and characterization of a chiral copoly(ether sulfone) with high molecular weight

2013 ◽  
Vol 63 (4) ◽  
pp. 796-800 ◽  
Author(s):  
Biao Fu ◽  
Xinyu Zhang ◽  
Zhiqiang Wang ◽  
Yong Bai ◽  
Haiyan Liu ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Synthesis And Characterization

SYNTHESIS AND CHARACTERIZATION OF FARNESENE-BASED POLYMERS

2017 ◽  
Vol 90 (2) ◽  
pp. 308-324 ◽  
Author(s):  
Taejun Yoo ◽  
Steven K. Henning
Keyword(s):  
Molecular Weight ◽  
Anionic Polymerization ◽  
Molar Mass ◽  
Functional Materials ◽  
Synthesis And Characterization ◽  
Low Molecular Weight ◽  
Structure Property ◽  
Structure Property Relationships ◽  
By Products

ABSTRACT A bio-based route to the production of trans-β-farnesene has recently been commercialized. Trans-β-farnesene is capable of being polymerized by both anionic and cationic pathways, creating low molecular weight polymers with structure–property relationships unique within the diene class of monomers. Trans-β-farnesene is produced through fermentation of sugar feedstocks. The pathway offers an alternative to petroleum-based feedstocks derived as by-products of naphtha or ethane cracking. Anionic polymerization of the monomer produces a highly branched “bottlebrush” structure, with rheological properties that are markedly different than those of linear diene polymers. Specifically, a lack of entanglements is observed even at relatively high molar masses. For hydroxyl-terminated oligomers, Tg as a function of molar mass follows a trend opposite non-functional materials. The synthesis and characterization of trans-β-farnesene–based polymers will be presented, including anionically prepared low molecular weight diols and monols.

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