Synthesis and nonlinear optical analysis of triblock copolymers containing discrete polyenes

Journal Article · Mon Mar 28 00:00:00 EST 1994 · Macromolecules; (United States)

DOI:https://doi.org/10.1021/ma00085a032· OSTI ID:7185222

Craig, G S.W.; Cohen, R E; Schrock, R R ^[1]; Dhenaut, C; LeDoux, I; Zyss, J ^[2]

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1. Massachusetts Inst. of Tech., Cambridge, MA (United States)
2. Centre National d'Etudes des Telecommunications, Bagneux (France)

Ring-opening metathesis polymerization of methyltetracyclododecene with Mo(CHCMe[sub 3]) (NAr) (OCMe[sub 3])[sub 2] (Ar = 2,6-diisopropylphenyl) followed by termination with an excess of conjugated dialdehyde yielded end-functionalized homopolymers with low polydispersities. Subsequent linking of the homopolymers with either a conjugated, difunctional molybdenum alkylidene complex or a bisphosphonate ester resulted in triblock copolymers containing a discrete 9-, 10-, 11-, or 12-ene. The hyperpolarizabilities of the polyenes were measured with electronic field induced second harmonic generation and corresponded well with polyene hyperpolarizabilities found in a previous study of triblock copolymers containing a distribution of polyenes.

• OSTI ID: 7185222
• Journal Information: Macromolecules; (United States), Journal Name: Macromolecules; (United States) Vol. 27:7; ISSN MAMOBX; ISSN 0024-9297
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606 -- Other Materials-- Physical Properties-- (1992-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CHEMICAL PREPARATION
COPOLYMERS
EQUIPMENT
MATERIALS
OPTICAL EQUIPMENT
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PHYSICAL PROPERTIES
POLARIZATION
POLYMERS
SYNTHESIS