Synthesis of a novel centipede‐like copolymer of styrene, isoprene, and methyl methacrylate

Li, Aixiang; Lu, Zhou; Zhou, Qifeng; Qiu, Feng; Yang, Yuliang

doi:10.1002/pola.21481

Cited by 20 publications

(22 citation statements)

References 17 publications

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“…The resulting diphenylmethyl carbanion can further initiate the polymerization of other monomers such as methyl methacrylate and vinyl pyridine, so that a series of new centipede-like copolymers can be synthesized [13,14].…”

Section: Discussionmentioning

confidence: 99%

Synthesis and characterization of well-defined comb-like branched polymers

Zi-jian

2008

Front. Chem. Eng. China

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Well-defined comb-like branched polymers having one branch in each repeating unit have been successfully synthesized by the coupling reaction of living polystyrene (PS) and polyisoprene (PI) anions with 1, 1-diphenylethenyl (DPE) groups along PS backbone prepared via atom transfer radical polymerization (ATRP) of 4-vinylbenzyloxy benzophenone (Sc) followed by Wittig reaction. The resulting comb-like branched polymers were characterized by IR, 1 H-NMR, gel permeation chromatography (GPC) and static light scattering (SLS) in detail. The effect of living chains and DPE group molar ratio on grafting efficiency was discussed. The results show the coupling reaction of living chains and DPE groups was highly effective, and the coupling efficiency can be controlled via the feed molar ratios of living chains and DPE groups. Moreover, the effect of molecular weights of backbone (PSe) and PSLi or PILi on grafting efficiency was also discussed. The results show that when excess living polymers were used, the almost quantitative grafting efficiency could be achieved.

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Section: Discussionmentioning

confidence: 99%

Synthesis and characterization of well-defined comb-like branched polymers

Zi-jian

2008

Front. Chem. Eng. China

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“…The polymer 2 was dissolved/ precipitated with dichloromethane/methanol three times and dried in vacuo at 50 ºC for 12 h. The conversion of C=O to C= = C is nearly quantitative indicated by 1 H NMR spectrum and IR spectrum of 2 as reported in ref. [9]. 1 …”

Section: Synthesis Of Ps Backbone Bearing Dpe Pendant Groups (2)mentioning

confidence: 97%

“…PS backbone bearing DPE pendant groups (2) was synthesized according to the method reported in our earlier work [9].…”

Section: Synthesis Of Ps Backbone Bearing Dpe Pendant Groups (2)mentioning

confidence: 99%

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Synthesis and characterization of amphiphilic centipede-like copolymer PS-PS-PMAA

Chen

Cui

et al. 2011

Sci. China Chem.

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A well-defined amphiphilic centipede-like copolymer of styrene and methacrylic acid (PS-PS-PMAA) was synthesized by the combination of living anionic polymerization and atom transfer radical polymerization (ATRP). The synthetic approach involves the first coupling reaction of polystyrene (PS) backbone bearing 1,1-diphenylethene (DPE) pendant groups with living polystyryllithium (PSLi), and sequential anionic polymerization of t-butyl methacrylate (tBMA) initiated by resulting 1,1-diphenylmethyl anion, and final hydrolysis of obtained PS-PS-PtBMA. The centipede-like copolymer PS-PS-PMAA was characterized by 1 H NMR, IR, GPC, and SLS measurements. The critical micelle concentration (CMC) of PS-PS-PMAA in water was determined by fluorescence probe technique. The self-assembly behavior of PS-PS-PMAA in water-THF mixture was observed by TEM. The results showed that the micellar morphology can be varied, such as vesicle, sphere, and agglomerate, depending on the THF content. These phenomena are worthy of further research in polymer physics field. atom transfer radical polymerization, living anionic polymerization, amphiphilc centipede-like copolymer, self-assembly

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“…The synthetic approach involved the coupling reaction of PS backbone bearing 1,1-diphenylethene (DPE) pendant groups with living polyisoprenyllithium (PILi), and subsequent polymerization of the resulting 1,1-diphenylmethyl anions with methy methacrylate (MMA) [13] .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of a novel centipede-like copolymer of styrene and methyl methacrylate

2007

SCI CHINA SER B

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A well-defined, A2B-type, centipede-like copolymer of styrene and methyl methacrylate (PS-PS-PMMA) was synthesized by the combination of living anionic polymerization and atom transfer radical polymerization (ATRP). The synthetic approach involves the coupling reaction of polystyrene (PS) backbone bearing 1,1-diphenylethene (DPE) pendant groups, produced by ATRP and Wittig reaction, with living polystyryllithium (PSLi), and subsequent polymerization of the resulting 1,1-diphenylmethyl anions with methy methacrylate. The centipede-like copolymer was characterized by 1 H NMR, IR, SEC, SLS, and DSC measurements.

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Synthesis of a novel centipede‐like copolymer of styrene, isoprene, and methyl methacrylate

Cited by 20 publications

References 17 publications

Synthesis and characterization of well-defined comb-like branched polymers

Synthesis and characterization of well-defined comb-like branched polymers

Synthesis and characterization of amphiphilic centipede-like copolymer PS-PS-PMAA

Synthesis of a novel centipede-like copolymer of styrene and methyl methacrylate

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