FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2080928618> ?p ?o ?g. }

• W2080928618 endingPage "7938" @default.
• W2080928618 startingPage "7927" @default.
• W2080928618 abstract "Disubstituted polyacetylenes with helical chirality have been rarely prepared due to the involved synthetic difficulty, and we here report a facile polymerization system for the synthesis of such polymers. Two groups of chiral acetylenes, i.e., C6H5C⋮CCO2R* {R* = [(1S)-endo]-(-)-borneyl (1), (1R,2S,5R)-(-)-menthyl (5), cholesteryl (6)} and C6H5C⋮CCO2C6H4CO2R* [R* = borneyl (2), menthyl (3), cholesteryl (4)], are prepared by esterifications of phenylpropiolic acids with borneol, menthol, and cholesterol. Polymerizations of 1−4 are effected by WCl6−Ph4Sn, giving poly(phenylpropiolate)s P1−P4 with high molecular weights in moderate yields. The structures and properties of the polymers are characterized and evaluated by IR, UV, NMR, CD, TGA, and SEM analyses. All the polymers are stable: neither decreases in their molecular weights nor changes in their spectra are detected after the polymers have been stored on shelf for ∼3 years, and no weight losses are recorded when the polymers are heated to ∼300 °C. Although the polymers do not possess regioregular Z or E conformations, the polyacetylene backbones are induced to helically rotate by the chiral pendants, as verified by the strong Cotton effects in the backbone absorption region of the polymers (molar ellipticity up to 102 300 deg cm2 dmol-1). The polymers exhibit helical thermochromism, with their chain helicity being continuously and reversibly tunable by temperature change. The helical polymers are capable of self-assembling, as demonstrated by the formation of twisted ribbons upon diffusing a THF solution of P3 into hexane." @default.
• W2080928618 created "2016-06-24" @default.
• W2080928618 creator A5000922322 @default.
• W2080928618 creator A5003064981 @default.
• W2080928618 creator A5071196133 @default.
• W2080928618 creator A5089379373 @default.
• W2080928618 date "2003-09-27" @default.
• W2080928618 modified "2023-10-14" @default.
• W2080928618 title "Helical Disubstituted Polyacetylenes: Synthesis and Chiroptical Properties of Poly(phenylpropiolate)s" @default.
• W2080928618 cites W1516295931 @default.
• W2080928618 cites W1969021511 @default.
• W2080928618 cites W1969140552 @default.
• W2080928618 cites W1969890158 @default.
• W2080928618 cites W1990174596 @default.
• W2080928618 cites W1992933851 @default.
• W2080928618 cites W1994093365 @default.
• W2080928618 cites W2003129383 @default.
• W2080928618 cites W2008553494 @default.
• W2080928618 cites W2013953415 @default.
• W2080928618 cites W2021214676 @default.
• W2080928618 cites W2024289128 @default.
• W2080928618 cites W2036341606 @default.
• W2080928618 cites W2054326139 @default.
• W2080928618 cites W2082758087 @default.
• W2080928618 cites W2083070111 @default.
• W2080928618 cites W2089384695 @default.
• W2080928618 cites W2094262951 @default.
• W2080928618 cites W2317363212 @default.
• W2080928618 cites W280694366 @default.
• W2080928618 cites W4205669956 @default.
• W2080928618 doi "https://doi.org/10.1021/ma0349433" @default.
• W2080928618 hasPublicationYear "2003" @default.
• W2080928618 type Work @default.
• W2080928618 sameAs 2080928618 @default.
• W2080928618 citedByCount "47" @default.
• W2080928618 countsByYear W20809286182012 @default.
• W2080928618 countsByYear W20809286182013 @default.
• W2080928618 countsByYear W20809286182014 @default.
• W2080928618 countsByYear W20809286182015 @default.
• W2080928618 countsByYear W20809286182018 @default.
• W2080928618 countsByYear W20809286182019 @default.
• W2080928618 countsByYear W20809286182020 @default.
• W2080928618 countsByYear W20809286182021 @default.
• W2080928618 countsByYear W20809286182022 @default.
• W2080928618 crossrefType "journal-article" @default.
• W2080928618 hasAuthorship W2080928618A5000922322 @default.
• W2080928618 hasAuthorship W2080928618A5003064981 @default.
• W2080928618 hasAuthorship W2080928618A5071196133 @default.
• W2080928618 hasAuthorship W2080928618A5089379373 @default.
• W2080928618 hasConcept C121332964 @default.
• W2080928618 hasConcept C124668440 @default.
• W2080928618 hasConcept C133571119 @default.
• W2080928618 hasConcept C142388413 @default.
• W2080928618 hasConcept C178790620 @default.
• W2080928618 hasConcept C185592680 @default.
• W2080928618 hasConcept C188027245 @default.
• W2080928618 hasConcept C194365794 @default.
• W2080928618 hasConcept C20621625 @default.
• W2080928618 hasConcept C2775988048 @default.
• W2080928618 hasConcept C2777671527 @default.
• W2080928618 hasConcept C44228677 @default.
• W2080928618 hasConcept C521977710 @default.
• W2080928618 hasConcept C52703039 @default.
• W2080928618 hasConcept C62520636 @default.
• W2080928618 hasConcept C7602139 @default.
• W2080928618 hasConcept C8010536 @default.
• W2080928618 hasConceptScore W2080928618C121332964 @default.
• W2080928618 hasConceptScore W2080928618C124668440 @default.
• W2080928618 hasConceptScore W2080928618C133571119 @default.
• W2080928618 hasConceptScore W2080928618C142388413 @default.
• W2080928618 hasConceptScore W2080928618C178790620 @default.
• W2080928618 hasConceptScore W2080928618C185592680 @default.
• W2080928618 hasConceptScore W2080928618C188027245 @default.
• W2080928618 hasConceptScore W2080928618C194365794 @default.
• W2080928618 hasConceptScore W2080928618C20621625 @default.
• W2080928618 hasConceptScore W2080928618C2775988048 @default.
• W2080928618 hasConceptScore W2080928618C2777671527 @default.
• W2080928618 hasConceptScore W2080928618C44228677 @default.
• W2080928618 hasConceptScore W2080928618C521977710 @default.
• W2080928618 hasConceptScore W2080928618C52703039 @default.
• W2080928618 hasConceptScore W2080928618C62520636 @default.
• W2080928618 hasConceptScore W2080928618C7602139 @default.
• W2080928618 hasConceptScore W2080928618C8010536 @default.
• W2080928618 hasIssue "21" @default.
• W2080928618 hasLocation W20809286181 @default.
• W2080928618 hasOpenAccess W2080928618 @default.
• W2080928618 hasPrimaryLocation W20809286181 @default.
• W2080928618 hasRelatedWork W1571762068 @default.
• W2080928618 hasRelatedWork W1972912918 @default.
• W2080928618 hasRelatedWork W1976441731 @default.
• W2080928618 hasRelatedWork W1987476665 @default.
• W2080928618 hasRelatedWork W1988488927 @default.
• W2080928618 hasRelatedWork W2060702364 @default.
• W2080928618 hasRelatedWork W2080928618 @default.
• W2080928618 hasRelatedWork W2146287283 @default.
• W2080928618 hasRelatedWork W2783311606 @default.
• W2080928618 hasRelatedWork W3149053715 @default.
• W2080928618 hasVolume "36" @default.

• next