Matches in SemOpenAlex for { <https://semopenalex.org/work/W1997206210> ?p ?o ?g. }
- W1997206210 endingPage "436" @default.
- W1997206210 startingPage "425" @default.
- W1997206210 abstract "Structures of the chain ends of the low molecular weight and highly isotactic PMMA prepared by t-C4H9MgBr in toluene were investigated extensively using 2D NMR technique. The 1H and 13C NMR signals of α-CH3 and CH2 groups in the first two and the last two monomeric units of the chain were assigned unequivocally, and four types of end-structures, viz. mm and rm at α-end and mm and mr at ω-end were identified. The configurations at the α- and ω-ends were less isotactic than those of in-chain monomeric sequences, and the m/r ratios at the α- and ω-ends were 10/1 and 6/4, respectively. Exact tacticity of PMMA was determined on the basis of the assignment, which revealed that isotacticities of the PMMAs prepared with t-C4H9MgBr in toluene at −78°C were independent of molecular weight. Chemical shifts of configuration-sensitive peaks for fractionated dimers and trimers of MMA were found to be very similar to those of the corresponding structures in the polymer ends." @default.
- W1997206210 created "2016-06-24" @default.
- W1997206210 creator A5016950462 @default.
- W1997206210 creator A5023282983 @default.
- W1997206210 creator A5045662864 @default.
- W1997206210 creator A5060293337 @default.
- W1997206210 creator A5071126685 @default.
- W1997206210 date "1987-04-01" @default.
- W1997206210 modified "2023-10-02" @default.
- W1997206210 title "Two-Dimensional NMR Spectra of Isotactic Poly(methyl methacrylate) Prepared with t-C4H9MgBr and Detailed Examination of Tacticity" @default.
- W1997206210 cites W1558348205 @default.
- W1997206210 cites W1966085672 @default.
- W1997206210 cites W1975729336 @default.
- W1997206210 cites W1989938626 @default.
- W1997206210 cites W1991695676 @default.
- W1997206210 cites W2011852771 @default.
- W1997206210 cites W2016063930 @default.
- W1997206210 cites W2020851269 @default.
- W1997206210 cites W2031574239 @default.
- W1997206210 cites W2040230519 @default.
- W1997206210 cites W2043524515 @default.
- W1997206210 cites W2046686719 @default.
- W1997206210 cites W2057193999 @default.
- W1997206210 cites W2058342132 @default.
- W1997206210 cites W2059883476 @default.
- W1997206210 cites W2060159425 @default.
- W1997206210 cites W2066312323 @default.
- W1997206210 cites W4239698749 @default.
- W1997206210 doi "https://doi.org/10.1295/polymj.19.425" @default.
- W1997206210 hasPublicationYear "1987" @default.
- W1997206210 type Work @default.
- W1997206210 sameAs 1997206210 @default.
- W1997206210 citedByCount "32" @default.
- W1997206210 countsByYear W19972062102013 @default.
- W1997206210 countsByYear W19972062102016 @default.
- W1997206210 countsByYear W19972062102018 @default.
- W1997206210 countsByYear W19972062102019 @default.
- W1997206210 countsByYear W19972062102023 @default.
- W1997206210 crossrefType "journal-article" @default.
- W1997206210 hasAuthorship W1997206210A5016950462 @default.
- W1997206210 hasAuthorship W1997206210A5023282983 @default.
- W1997206210 hasAuthorship W1997206210A5045662864 @default.
- W1997206210 hasAuthorship W1997206210A5060293337 @default.
- W1997206210 hasAuthorship W1997206210A5071126685 @default.
- W1997206210 hasBestOaLocation W19972062101 @default.
- W1997206210 hasConcept C121332964 @default.
- W1997206210 hasConcept C1276947 @default.
- W1997206210 hasConcept C159985019 @default.
- W1997206210 hasConcept C163111631 @default.
- W1997206210 hasConcept C166940927 @default.
- W1997206210 hasConcept C178790620 @default.
- W1997206210 hasConcept C185592680 @default.
- W1997206210 hasConcept C188027245 @default.
- W1997206210 hasConcept C192562407 @default.
- W1997206210 hasConcept C199185054 @default.
- W1997206210 hasConcept C2777935641 @default.
- W1997206210 hasConcept C2778142098 @default.
- W1997206210 hasConcept C2780718992 @default.
- W1997206210 hasConcept C44228677 @default.
- W1997206210 hasConcept C4839761 @default.
- W1997206210 hasConcept C521977710 @default.
- W1997206210 hasConcept C58018886 @default.
- W1997206210 hasConcept C67787023 @default.
- W1997206210 hasConcept C71240020 @default.
- W1997206210 hasConcept C8010536 @default.
- W1997206210 hasConceptScore W1997206210C121332964 @default.
- W1997206210 hasConceptScore W1997206210C1276947 @default.
- W1997206210 hasConceptScore W1997206210C159985019 @default.
- W1997206210 hasConceptScore W1997206210C163111631 @default.
- W1997206210 hasConceptScore W1997206210C166940927 @default.
- W1997206210 hasConceptScore W1997206210C178790620 @default.
- W1997206210 hasConceptScore W1997206210C185592680 @default.
- W1997206210 hasConceptScore W1997206210C188027245 @default.
- W1997206210 hasConceptScore W1997206210C192562407 @default.
- W1997206210 hasConceptScore W1997206210C199185054 @default.
- W1997206210 hasConceptScore W1997206210C2777935641 @default.
- W1997206210 hasConceptScore W1997206210C2778142098 @default.
- W1997206210 hasConceptScore W1997206210C2780718992 @default.
- W1997206210 hasConceptScore W1997206210C44228677 @default.
- W1997206210 hasConceptScore W1997206210C4839761 @default.
- W1997206210 hasConceptScore W1997206210C521977710 @default.
- W1997206210 hasConceptScore W1997206210C58018886 @default.
- W1997206210 hasConceptScore W1997206210C67787023 @default.
- W1997206210 hasConceptScore W1997206210C71240020 @default.
- W1997206210 hasConceptScore W1997206210C8010536 @default.
- W1997206210 hasIssue "4" @default.
- W1997206210 hasLocation W19972062101 @default.
- W1997206210 hasOpenAccess W1997206210 @default.
- W1997206210 hasPrimaryLocation W19972062101 @default.
- W1997206210 hasRelatedWork W1584892032 @default.
- W1997206210 hasRelatedWork W1748994349 @default.
- W1997206210 hasRelatedWork W1910070144 @default.
- W1997206210 hasRelatedWork W2006897848 @default.
- W1997206210 hasRelatedWork W2017823545 @default.
- W1997206210 hasRelatedWork W2041686704 @default.
- W1997206210 hasRelatedWork W2071422141 @default.
- W1997206210 hasRelatedWork W2081953726 @default.
- W1997206210 hasRelatedWork W2110922584 @default.