A specialist periodical report on nuclear magnetic resonance (2011/8) synthetic macromolecules

Kurosu, Hiromichi; Yamanobe, Takeshi

doi:10.1039/9781849734851-00386

Cited by 1 publication

(1 citation statement)

References 427 publications

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“…In fact, 1‐D and 2‐D NMR techniques have been widely used to characterize number‐average molecular mass (M n ), chemical composition and microstructures of polymers . In fact, NMR is effective tool in measuring M n via end‐group analysis, specially of polymers of relative low molecular weights and narrow molecular weight distributions, as occur in the case of polymers synthetized by controlled radical polymerization (CRP). In the CRP systems, it was possible to determinate the M n of polymers via 1 H NMR end‐group analysis when the proton signal assigned to the R fragment is not overlapped with the proton signal of the repeating unit.…”

Section: Introductionmentioning

confidence: 99%

Using of Novel Halides in the ATRP Polymerization. Estimation of Polymer Molecular Mass

Soriano‐Moro

Percino

Cerón

et al. 2014

Macromolecular Symposia

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Summary Two novel ATRP initiator (R‐X): 2‐bromo‐2‐methyl‐N‐(1‐phenyl‐ethyl)propanamide (I) and 2,2,2‐trichloro‐N‐(1‐phenylethyl)acetamide (II) were synthesized and characterized by 1H‐NMR, IR, EI. Also, crystal structures of (I) and (II) are reported. Compounds (I) and (II) were used in the ATRP reaction of methyl methacrylate (MMA) and acrylamide (AAD) at 48°C, using CuBr/Me6TREN and ethanol/toluene (60:40) mixture as catalytic complex and solvent, respectively. End‐group analysis by 1H‐NMR was used to determinate the molecular mass of the polymers synthesized via ATRP. The Mn values for poly(MMA) using (II) were 2333 and 3952 g/mol, which is higher in comparison with the Mn values obatined for (AAD)/(II) and (AAD)/(I) systems indicating that monomers containing ester moiety in their structure, such as acrylates and methacrylates, may be good candidates to polymerize with (II) and CuBr/Me6TREN.

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Section: Introductionmentioning

confidence: 99%