Convenient synthesis of versatile syndiotactic polystyrene materials containing pendant alkenyl groups with a scandium catalyst system

The syndioselective copolymerization of styrene (St) with five alkenyl functionalized styrenic monomers with the use of [(C 5 Me 4 SiMe 3 )Sc(CH 2 C 6 H 4 NMe 2 - o ) 2 ]/[Ph 3 C][B(C 6 F 5 ) 4 ] produced a new family of versatile syndiotactic polystyrene (sPS) materials with pendant alkenyl groups...

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Bibliographic Details
Published inPolymer chemistry Vol. 9; no. 27; pp. 3709 - 3713
Main Authors Yang, Ke, Niu, Hui, Shi, Zhenghai, Tan, Rui, Li, Tingting, Shen, Kaihua, Li, Yang
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 21.07.2018
Subjects
Chemical industry
Chemical synthesis
Copolymerization
Divinylbenzene
Epoxidation
Monomers
Organic chemistry
Polymer chemistry
Polystyrene resins
Scandium
Styrenes
Syndiotacticity
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Summary:The syndioselective copolymerization of styrene (St) with five alkenyl functionalized styrenic monomers with the use of [(C 5 Me 4 SiMe 3 )Sc(CH 2 C 6 H 4 NMe 2 - o ) 2 ]/[Ph 3 C][B(C 6 F 5 ) 4 ] produced a new family of versatile syndiotactic polystyrene (sPS) materials with pendant alkenyl groups (CC: 5–20 mol%, T m : 220–250 °C). These styrenic monomers were divinylbenzene (FSt1), 4-isopropenylstyrene (FSt2), 4-(1-isopropylvinyl)styrene (FSt3), 4-(2-propenyl)styrene (FSt4) and 4-(2-methyl-2-propenyl)styrene (FSt5). Through thiol–ene click chemistry and epoxidation, new polar-group functionalized sPS materials were obtained efficiently, demonstrating that syndiotactic copolymers with pendant alkenyl groups can serve as reactive intermediates to produce various functional materials.
ISSN:1759-9954
1759-9962
DOI:10.1039/C8PY00607E