RHEOKINETIC AND MORPHOLOGICAL FEATURES OF THE REACTION FORMATION OF A POLYMER COMPOSITE MATERIAL BASED ON IMPACT-RESISTANT POLY(METHYL METHACRYLATE). MODEL AND APPLIED ASPECTS

Based on the experimental data on the rheology of dispersions of hydrophobic aerosil (Am) in a low molecular weight hydrocarbon medium, the possibility of using a «micellar» mechanism for the formation of a bulk structure for such dispersions is considered. A model of such a structure before, during and after shear deformation is proposed, which makes it possible to interpret experimental data on the rheology of dispersed systems. The results of the study of rheokinetics are presented in a new visio – from the point of view of self-organization under the influence of the shear field. The PMMA–PU–Am system was considered as a polymer composite (PC), in which the matrix is the poly(methyl methacrylate) (PMMA) being modified, and the dispersed phase is a mixture of polyurethane (PU) with Am. It has been shown that during the reaction formation of this composition, the conditions of shear deformation of the system correspond to those at which self-organization and fixation of the coagulation rheopex structure of the nanofiller in PC is possible at the moment of reaching very high viscosity values (gel-point), when diffusion processes will be practically frozen. Two concentration regions of Am were predicted (before and after the percolation threshold), where an enhancement of the mechanical characteristics of PMMA can be expected. The relationship between the rheokinetics of the formation of a linear PMMA–crosslinked PU mixture in the presence of different amounts of oligomeric azo-initiator containing fragments of the polyurethane chain and groups capable of initiating radical polymerization of methyl methacrylate and the process of phase separation, morphology and mechanical properties of the final products has been established. It was shown that the time of phase separation and gelation are interrelated and there is in a simple dependence on the concentration of the azo-initiator. Such an initiator affects the structural-rheological transitions in the system and leads to the formation of morphology with smaller domains. The most stable system with the best dispersion of polyurethane in polymethyl methacrylate is a mixture containing 0.002 mol/L of azo-initiator, which has improved mechanical properties and increased impact viscosity.

Analisis Kejiwaan Tokoh Nuning dalam Naskah Drama Nuning Bacok Karya Andy Sri Wahyudi (Kajian Psikologi Sastra)

Penelitian ini memiliki tujuan untuk mengungkapkan kejiwaan tokoh Nuning dalam naskah drama Nuning Bacok karya Andy Sri Wahyudi dengan menggunakan pendekatan psikologi sastra. Kajian ini dibagi menjadi dua pokok pembahasan yaitu; 1) Struktur kepribadian, dan 2) Mekanisme pertahanan dan konflik. Dua pokok pembahasan tersebut digunakan untuk mengungkapkan kejiwaan dari tokoh Nuning. Penelitian ini menggunakan pendekatan kualitatif dengan metode penelitian yang digunakan adalah metode deskriptif kualitatif. Subjek dalam penelitian ini adalah naskah drama Nuning Bacok karya Andy Sri Wahyudi yang diterbitkan dalam buku antologi drama yang berjudul Dramaturgi Rasa 10 Lakon Lelakon 2020 pada tahun 2020. Teknik pengumpulan data dalam penelitian ini menggunakan teknik penelitian kepustakaan dengan metode pengumpulan data yang digunakan dalam penelitian ini adalah teknik Baca-Catat. Hasil penelitian dibagi menjadi dua pokok pembahasan yaitu yang petama adalah pembahasan struktur kepribadian tokoh Nuning dan ditemukan tiga struktur yaitu; 1) Id, 2) Ego, dan 3) Superego. Pokok pembahasan yang kedua adalah mekanisme pertahanan dan konflik yang terjadi dalam diri tokoh Nuning. Dalam naskah drama Nuning Bacok ditemukan lima mekanisme pertahanan dan konflik yang ada dalam diri tokoh Nuning yaitu; 1) Represi, 2) Sublimasi, 3) Rasionalisasi (Rationalization), 4) Reaksi Formasi (Reaction Formation), dan 5) Agresi dan Apatis.

Analisis Konflik Batin Dan Mekanisme Pertahanan Tokoh Sasaki Miyo Dalam Anime Nakitai Watashi Wa Neko Wo Kaburu

This research examines the intrinsic elements of anime Nakitai Watashi wa Neko wo Kaburu, as well as the inner conflicts and defense mechanisms of Sasaki Miyo character in the anime Nakitai Watashi wa Neko wo Kaburu. This research uses qualitative descriptive technique with literary psychology approach. The data collection technique was carried out by using the note-taking technique. The theories that were used in this research are fiction study theory to analyze intrinsic elements and Freud's psychoanalytic theory to analyze the inner conflict and defense mechanisms of Sasaki Miyo. The result of this research is that there are 35 data that show the intrinsic elements of the anime Nakitai Watashi wa Neko wo Kaburu and 8 data that show the inner conflict and defense mechanisms of Sasaki Miyo character in the anime Nakitai Watashi wa Neko wo Kaburu. The conclusion that can be drawn from this research is that Sasaki Miyo, a middle school girl who was unhappy because her parents had gotten divorced and chose to run away from her house as a cat, experienced inner conflicts and used various defense mechanisms when the inner conflicts occurred. There are 6 defense mechanisms that are used by Miyo, and those are reaction formation, rationalization, reversal, compensation, and undoing. The factors that cause Miyo's unhappiness eventually accumulated so that Miyo often used projection as a defense mechanism, where she continued to project her anger towards her parents.

Mechanisms of Psychological Defense and Dominant Defense Behavior of Convicts for Terrorist and Extremist Activities

The aim of the study was to identify the particularities of the defense behavior mechanisms among convicted for terrorist and extremist activities. A total of 469 convicts (351-for terrorist activities, 118 - for extremist activities) participated in the study. Life Style Index was used in order to reveal the defense mechanisms. The results allow us to talk about five types of defense: 1) dominance of projection and compensation defense mechanisms as means against the awareness of the negative and unacceptable personality qualities; 2) dominance of compensation in the profile indicates the desire to overcome a strong sense of inferiority; 3) dominance of reaction formation where unacceptable unconscious content is overcome by strengthening and development of exaggerated opposite trends; 4) dominance of intellectualization, where is the real action to remedy the anxiety and fears, the individual formulates an abstract of judgment, trying to get rid of one’s frustration; 5) dominance of denial, it refers to non-recognition, rejection of reality, displacement of thoughts, feelings, emotions from consciousness. In conclusion the potential of psychotherapeutic work is discussed.

DEFENSE MECHANISM OF THE MAIN CHARACTER IN LAURIE HALSE ANDERSON’S SPEAK NOVEL

ABSTRACT This study is a defense mechanism analysis of the main character in Laurie Halse Anderson’s Speak novel. It aims at revealing how defense mechanisms is experienced by Melinda Sordino as the main character of Speak novel by applying Sigmund Freud’s defense mechanism theory. The data is the narration and dialogue in the narrative implying defense mechanism strategies used by the main character in coping up with verbal, physical and phsychological bullying she experienced. This study uses a descriptive qualitative method. The finding shows that the main character had repression, rationalization, regression, reaction-formation, projection, replacement, isolation, identification, sublimation and turning to self as defense mechanisms strategies to oversome the conflicts. Keywords: main character; defense mechanisms; phsychoanalysis.

Magnesium Solubility in Primary α-Al and Heat Treatment Response of Cast Al-7Si-Mg

Magnesium and silicon concentrations in the interior of primary α-Al of Al-7Si-Mg alloys were studied at temperatures in the liquid-solid range and just after solidification was completed. Analysis of the results showed that the magnesium concentration in the interior of primary α-Al is very low in the temperatures range from the liquidus to the start of the Al-Si eutectic reaction. Formation of silicon-rich phases during eutectic reactions, such as eutectic silicon and β-Al5FeSi, phases trigger a significant increase in the magnesium concentration in the interior of primary α-Al, when sufficient time is allowed for solid-state diffusion to occur. When fast cooling rates are applied during the Al-Si eutectic reaction, most of the magnesium is retained in π-Al8FeMg3Si6 and Mg2Si phases formed during solidification. Semi-solid Al-7Si-Mg castings were produced with varying magnesium contents, and the mechanical properties were evaluated in the as-cast, T5 and T6 conditions. It was found that the 0.2% offset yield strength of the semi-solid Al-7Si-Mg castings in the T5 and T6 conditions increases linearly with the square root of the magnesium concentration in the interior of the α-Al globules formed during the slurry preparation process.

Sequential ionic layer adsorption reaction formation of LaVO4–TiO2 nanocomposites for photocatalytic water treatment

Lanthanum vanadate (LaVO4) has been deposited onto the surface of P25 TiO2 particles immobilized on glass beads for photocatalytic water treatment.