英语翻译

Toluene(BDH)waspredriedover4-A˚molecularsievesanddistilledfromsodiumbenzophenone

ketylimmediatelypriortouse.Dichloromethane

(DCM)wasdistilledfromcalciumhydridebefore

use.Allotherchemicalswerepurchasedfrom

Aldrichandusedasreceivedwithoutfurther

purification.N,N0-di(n-butyl)-1,6,7,12-tetrakis(4-

tert-butylphenoxy)-3,4,9,10-perylenetetracarboxylic

bisimidewaspreparedaccordingtothe

methodsdescribedintheliterature.4-Ethynylbenzonic

acidwassynthesizedbypalladiumcatalyzed

couplingreactionoftrimethylsilylacetylene

withmethyl4-bromobenzoatefollowedby

base-catalyzeddesilylation.11-Phthalimido-1-

phenyl-1-undecyne,poly(11-phthalimido-1-

phenyl-1-undecyne)(P8;Mw22,700;Mw/Mn1.5),

andpoly(11-amino-1-phenyl-1-undecyne)(P11;

Mw11,500;Mw/Mn1.4)werepreparedaccording

toourpreviousarticle.

Instrumentation

IRspectraweremeasuredonaPerkin–Elmer16

PCFT-IRspectrophotometer.1Hand13CNMR

spectrawererecordedonaBrukerARX300

NMRspectrometerusingchloroform-dassolvent

andtetramethylsilaneasinternalreference.

UVspectraweremeasuredonaMiltonRoy

Spectronic3000Arrayspectrophotometer.Mass

spectrawererecordedonaFinniganTSQ7000

triple-quadrupolemassspectrometeroperating

inachemicalionization(CI)modewithmethane

ascarriergas.Molecularweightsandpolydispersity

indicesofthepolymerswereestimatedin

THFbyaWatersAssociategelpermeationchromatography

(GPC)system.Asetofmonodisperse

polystyrenestandardscoveringmolecularweight

rangeof103–107wasusedformolecularweight

calibration.Thermalstabilityofthepolymers

wasevaluatedonaPerkin-ElmerTGA7under

drynitrogenataheatingrateof208C/min.Photoluminescence

(PL)spectraofthepolymersin

THFwererecordedonaPerkin–Elme