Markus Klapper

Publication List Details

Period

1997 - 2009

Number

104

Co-Authors

In situ investigation of dynamical nanophase separation (2003)

De Feyter,S., Sieffert,M., Klapper,Markus, Müllen,Klaus, De Schryver,F. C.

The nanophase separation behavior of two semi-fluorinated isophthalic acid derivatives, F8H10-ISA and F12H11-ISA, at the liquid-solid interface is studied by in situ scanning tunneling microscopy....

Light- and STM-tip-induced formation of one-dimensional and two-dimensional organic nanostructures (2003)

Miura,A., De Feyter,S., Gesquiere,A., Grim,P. C. M., Moessner,G., ...

The light-induced and tip-induced polymerization of two diacetylene derivatives has been investigated at the air/solid interface by scanning tunneling microscopy (STM). One molecule is an isophthalic...

Organic nanoparticles with polypropyleneoxide chains as support for metallocene catalysts: Influence of the concentration of PPO chains on the surface of nanoparticles on the catalyst activity in ethylene polymerization (2003)

Jang,Y. J., Nenov,N., Klapper,Markus, Müllen,Klaus

In this paper the influence of the surface of organic nanoparticles used as supports in metallocene catalysed olefin polymerization is investigated. Several latex particles with different amounts of...

Organic nanoparticles with polypropyleneoxide chains as support for metallocene catalysts: Ethylene homopolymerization and ethylene/alpha-olefin copolymerization (2003)

Jang,Y. J., Nenov,N., Klapper,Markus, Müllen,Klaus

Novel organic nanoparticles functionalized with nucleophilic polypropyleneoxide (PPO) chains on their surfaces for supporting metallocene catalysts in heterogeneous olefin polymerization are...

Positron annihilation study of polyphenylene dendrimers (2003)

Marek,T., Süvegh,K., Vertes,A., Ernst,A., Bauer,R., Weil,T., ...

The free volume of a series of rigid polyphenylene dendrimers was studied by positron lifetime spectroscopy and the experimental data were compared with results from molecular dynamics calculations....

Synthesis and study of sulfonated poly(ether-ketone)s (2003)

Hamciuc,C., Bruma,M., Klapper,Markus

An aromatic poly(ether-ketone) was prepared by the reaction of 2,2-bis(4-hydroxyphenyl)-propane with 4,4'-difluorobenzophenone and it was further sulfonated using chlorosulfonic acid and...

Functional polymers as nanoscopic building blocks (2003)

Hernandez-Lopez,J. L., Bauer,R. E., Chang,W. S., Glasser,G., Grebel-Koehler,D., Klapper,Markus, ...

Polyphenylene dendrimers are introduced as polymeric building blocks-with a strictly monodisperse particle size distribution within the nanometer range-for the construction of nanostructured...

Novel PDLC films based on a photoactive polymeric binder (2003)

Manni,A., Gobbi,L., Simoni,F., Klapper,Markus, Knoll,Wolfgang

We report the synthesis and characterization of a novel polymeric material which has been used as binder in the fabrication of PDLC films. A monomer bearing a carbazolyl moiety has been...

Toward two-dimensional supramolecular control of hydrogen-bonded arrays: The case of isophthalic acids (2003)

De Feyter,S., Gesquiere,A., Klapper,Markus, Müllen,Klaus, De Schryver,F. C.

The two-dimensional pattern formation of hydrogen bonding isophthalic acid derivatives at the liquid/solid interface has been investigated using scanning tunneling microscopy. By varying the location...

Functional polymers as nanoscopic building blocks (2003)

Hernandez-Lopez, J. L., Bauer, R. E., Chang, W. S., Glasser, G., Grebel-Koehler, D., Klapper, Markus, ...

Polyphenylene dendrimers are introduced as polymeric building blocks-with a strictly monodisperse particle size distribution within the nanometer range-for the construction of nanostructured...

Positron annihilation study of polyphenylene dendrimers (2003)

Marek, T., Süvegh, K., Vertes, A., Ernst, A., Bauer, R., Weil, T., ...

The free volume of a series of rigid polyphenylene dendrimers was studied by positron lifetime spectroscopy and the experimental data were compared with results from molecular dynamics calculations....

Light- and STM-tip-induced formation of one-dimensional and two-dimensional organic nanostructures (2003)

Miura, A., De Feyter, S., Gesquiere, A., Grim, P. C. M., Moessner, G., ...

The light-induced and tip-induced polymerization of two diacetylene derivatives has been investigated at the air/solid interface by scanning tunneling microscopy (STM). One molecule is an isophthalic...

Novel PDLC films based on a photoactive polymeric binder (2003)

Manni, A., Gobbi, L., Simoni, F., Klapper, Markus, Knoll, Wolfgang

We report the synthesis and characterization of a novel polymeric material which has been used as binder in the fabrication of PDLC films. A monomer bearing a carbazolyl moiety has been...

Organic nanoparticles with polypropyleneoxide chains as support for metallocene catalysts: Influence of the concentration of PPO chains on the surface of nanoparticles on the catalyst activity in ethylene polymerization (2003)

Jang, Y. J., Nenov, N., Klapper, Markus, Müllen, Klaus

In this paper the influence of the surface of organic nanoparticles used as supports in metallocene catalysed olefin polymerization is investigated. Several latex particles with different amounts of...

Organic nanoparticles with polypropyleneoxide chains as support for metallocene catalysts: Ethylene homopolymerization and ethylene/alpha-olefin copolymerization (2003)

Jang, Y. J., Nenov, N., Klapper, Markus, Müllen, Klaus

Novel organic nanoparticles functionalized with nucleophilic polypropyleneoxide (PPO) chains on their surfaces for supporting metallocene catalysts in heterogeneous olefin polymerization are...

Synthesis and study of sulfonated poly(ether-ketone)s (2003)

Hamciuc, C., Bruma, M., Klapper, Markus

An aromatic poly(ether-ketone) was prepared by the reaction of 2,2-bis(4-hydroxyphenyl)-propane with 4,4'-difluorobenzophenone and it was further sulfonated using chlorosulfonic acid and...

In situ investigation of dynamical nanophase separation (2003)

De Feyter, S., Sieffert, M., Klapper, Markus, Müllen, Klaus, De Schryver, F. C.

The nanophase separation behavior of two semi-fluorinated isophthalic acid derivatives, F8H10-ISA and F12H11-ISA, at the liquid-solid interface is studied by in situ scanning tunneling microscopy....

Toward two-dimensional supramolecular control of hydrogen-bonded arrays: The case of isophthalic acids (2003)

De Feyter, S., Gesquiere, A., Klapper, Markus, Müllen, Klaus, De Schryver, F. C.

The two-dimensional pattern formation of hydrogen bonding isophthalic acid derivatives at the liquid/solid interface has been investigated using scanning tunneling microscopy. By varying the location...

Small-angle neutron scattering study of poly(methyl methacrylate-block-sodium acrylate-block-methyl methacrylate) and poly(sodium acrylate-block methyl methacrylate-block-sodium acrylate) triblock copolymers in aqueous solutions (2002)

Vass,S., Haimer,K., Meier,G., Klapper,Markus, Borbely,S.

Small-angle neutron scattering experiments were made on poly(methyl methacrylate-block-sodium acrylate-block-methyl methacrylate) [p(MMA-b-NaA-b-MMA)] and p(NaA-b-MMA-b-NaA) solutions by varying the...

PEO-functionalized polystyrene as polymeric support in metallocene catalysed olefin polymerisation (2002)

Nenov,N., Koch,M., Klapper,Markus, Müllen,Klaus

A new catalyst system based on easily accessible cross-linked (by Diels-Alder reaction) polymeric supports, functionalized with nucleophilic polyethyleneoxide-monomethylether (PEO-M) is presented....

PEO-functionalized polystyrene as polymeric support in metallocene catalysed olefin polymerisation (2002)

Nenov, N., Koch, M., Klapper, Markus, Müllen, Klaus

A new catalyst system based on easily accessible cross-linked (by Diels-Alder reaction) polymeric supports, functionalized with nucleophilic polyethyleneoxide-monomethylether (PEO-M) is presented....

Small-angle neutron scattering study of poly(methyl methacrylate-block-sodium acrylate-block-methyl methacrylate) and poly(sodium acrylate-block methyl methacrylate-block-sodium acrylate) triblock copolymers in aqueous solutions (2002)

Vass, S., Haimer, K., Meier, G., Klapper, Markus, Borbely, S.

Small-angle neutron scattering experiments were made on poly(methyl methacrylate-block-sodium acrylate-block-methyl methacrylate) [p(MMA-b-NaA-b-MMA)] and p(NaA-b-MMA-b-NaA) solutions by varying the...

Reversibly crosslinked networks of nanoparticles in metallocene-catalyzed olefin polymerization (2001)

Koch,M., Falcou,A., Nenov,N., Klapper,Markus, Müllen,Klaus

A hierarchic build-up of functional nano- and microparticles allows the generation of smart organic supports for metallocene catalysts. Latices, well defined in size and surface structure, are made...

Photodimerization of cinnamate derivatives studied by STM (2001)

De Feyter,S., Gesquiere,A., Sieffert,M., Klapper,Markus, Müllen,Klaus, ...

The photochemical dimerization of two cinnamate derivatives, C18CinnC18 and C18CinnC10, has been investigated at the liquid/graphite interface by scanning tunneling microscopy (STM). The unit cell...

Photodimerization of cinnamate derivatives studied by STM (2001)

De Feyter, S., Gesquiere, A., Sieffert, M., Klapper, Markus, Müllen, Klaus, ...

The photochemical dimerization of two cinnamate derivatives, C18CinnC18 and C18CinnC10, has been investigated at the liquid/graphite interface by scanning tunneling microscopy (STM). The unit cell...

Reversibly crosslinked networks of nanoparticles in metallocene-catalyzed olefin polymerization (2001)

Koch, M., Falcou, A., Nenov, N., Klapper, Markus, Müllen, Klaus

A hierarchic build-up of functional nano- and microparticles allows the generation of smart organic supports for metallocene catalysts. Latices, well defined in size and surface structure, are made...