Polymerization in liquid crystal — XVII. Effect of flexible substituents in the mesogenic side-chain on the behaviour of mesogenic polymers

Horvath, J.; Nyitrai, K.; Cser, F.; Hardy, G.

doi:10.1016/0014-3057(85)90228-9

Cited by 20 publications

(7 citation statements)

References 6 publications

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“…4-(Meth)acryloyloxybenzoic acids form liquid-crystalline polymers upon polymerisation and give birth to a large number of mesomorphic monomers and polymers. 31 Of all monomers of this type, the best studied are the esters of the general formula CH 2 =CRC(O)OYC(O)OYR H (R H = H, 32 Me, 33 OR HH ; R HH = Me, 32 ± 35 , Pr, 34 Bu n , 32 ± 34, 36 n-C 6 H 13 37 and Alk(C 8 7C 16 ) 36 (hereinafter Y = 1,4-C 6 H 4 ). Monomers with more complex structures have been also described, e.g., methacrylates with the mesogenic side groups YC(O)OYOC(O)YOR H (R H = H, Alk); 38 or thermotropic bisacrylates R H XR H (X = (CH 2 ) n ; n = 6 ± 10, 12; R H = CH 2 =CHC(O)O.…”

Section: Methods For the Synthesis Of Aryl (Meth)acrylatesmentioning

confidence: 99%

Aryl (meth)acrylates and polymers based on them

Syromyatnikov¹,

Paskal²,

Savchenko³

1999

Russ. Chem. Rev.

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We extend our previous formulation of low-energy QCD in terms of an effective lagrangean containing operators of dimensionality d ≤ 6 constructed with pseudoscalars and quark fields, describing physics below the scale of chiral symmetry breaking. We include in this paper the vector and axial-vector channels. We follow closely the Extended Chiral Quark Model approach and consistently work in the large-N c and leading log approximation and take into account the constraints from chiral symmetry and chiral symmetry restoration. The optimal fit of all parameters gives further support to a heavy scalar meson with a mass ∼ 1 GeV and a value of the axial pion-quark coupling constant g A 0.55 to 0.66, depending on some assumptions concerning the Weinberg sum rules.

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Section: Methods For the Synthesis Of Aryl (Meth)acrylatesmentioning

confidence: 99%

Aryl (meth)acrylates and polymers based on them

Syromyatnikov¹,

Paskal²,

Savchenko³

1999

Russ. Chem. Rev.

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“…As mentioned earlier, SCLCPs can be obtained by polymerization reactions such as addition [2,3,7,8], ring-opening [9][10][11][12], or condensation [13][14][15] polymerizations of monomers containing mesogenic groups (Figure 11.2) and by polymer reactions (Figure 11.3) [16][17][18][19]. …”

Section: Polymer Synthesis and Polymer Reactionmentioning

confidence: 99%

Design and Synthesis of Side‐Chain Liquid Crystal Polymers

Ujiie

Kato

2014

Handbook of Liquid Crystals

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Various types of side‐chain liquid crystal polymers with ferroelectric, photoactive, thermochromic, hydrogen‐bonded, and ionized properties have been synthesized by many research groups, and their physicochemical properties and orientational behavior have been studied. These studies have established the relationship between the structure and the physicochemical properties. This chapter describes the design and synthesis of a conventional side‐chain liquid crystal polymer in which mesogenic side groups are attached to the polymer chains.

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“…Acrylate monomers were synthesized according to a literature procedure as shown in Figure 4. 9 Polymerization was conducted as follows: the acrylate monomer was added to a flask along with benzoyl peroxide (2 mol%) and dissolved in THF (0.25M with respect to monomer). Three freeze pump thaw cycles were performed and the reaction was placed into a preheated 60 ºC oil bath and stirred 15 h. The mixtures were then cooled and precipitated into ethyl ether and filtered.…”

Section: Poly((3-(4-(4-methoxyphenyloxycarbonyl)phenyloxy)propyl)methmentioning

confidence: 99%

Optical threshold layer and intermediate state two-photon PAG approaches to double exposure lithography

Berro

O’Connor

et al. 2009

Advances in Resist Materials and Processing Technology XXVI

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Intermediate state two-photon (ISTP) photoacid generator (PAG) and optical threshold layer (OTL) approaches to double exposure lithography have been explored. We have synthesized "transparent" PAG and sensitizer compounds for use in ISTP systems and have demonstrated the possibility of utilizing such energy transfer systems to generate acid. We have also synthesized side chain liquid crystalline polymers and small molecule azobenzene compounds for use in OTL applications and have begun photoswitching studies.

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Polymerization in liquid crystal — XVII. Effect of flexible substituents in the mesogenic side-chain on the behaviour of mesogenic polymers

Cited by 20 publications

References 6 publications

Aryl (meth)acrylates and polymers based on them

Aryl (meth)acrylates and polymers based on them

Design and Synthesis of Side‐Chain Liquid Crystal Polymers

Optical threshold layer and intermediate state two-photon PAG approaches to double exposure lithography

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